The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2021:1578 advisory.

  - A memory leak in the sof_set_get_large_ctrl_data() function in sound/soc/sof/ipc.c in the Linux kernel     through 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering     sof_get_ctrl_copy_params() failures, aka CID-45c1380358b1. (CVE-2019-18811)

  - In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79. (CVE-2019-19523)

  - In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/usb/misc/iowarrior.c driver, aka CID-edc4746f253d. (CVE-2019-19528)

  - In kbd_keycode of keyboard.c, there is a possible out of bounds write due to a missing bounds check. This     could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-144161459     (CVE-2020-0431)

  - An issue was discovered in the Linux kernel before 5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d. (CVE-2020-11608)

  - A pivot_root race condition in fs/namespace.c in the Linux kernel 4.4.x before 4.4.221, 4.9.x before     4.9.221, 4.14.x before 4.14.178, 4.19.x before 4.19.119, and 5.x before 5.3 allows local users to cause a     denial of service (panic) by corrupting a mountpoint reference counter. (CVE-2020-12114)

  - Integer overflow in the firmware for some Intel(R) Graphics Drivers for Windows * before version     26.20.100.7212 and before Linux kernel version 5.5 may allow a privileged user to potentially enable an     escalation of privilege via local access. (CVE-2020-12362)

  - Improper input validation in some Intel(R) Graphics Drivers for Windows* before version 26.20.100.7212 and     before Linux kernel version 5.5 may allow a privileged user to potentially enable a denial of service via     local access. (CVE-2020-12363)

  - Null pointer reference in some Intel(R) Graphics Drivers for Windows* before version 26.20.100.7212 and     before version Linux kernel version 5.5 may allow a privileged user to potentially enable a denial of     service via local access. (CVE-2020-12364)

  - usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because     a transfer occurs without a reference, aka CID-056ad39ee925. (CVE-2020-12464)

  - A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file     system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash     the system if the directory exists. The highest threat from this vulnerability is to system availability.
    (CVE-2020-14314)

  - A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found     in the way when reboot the system. A local user could use this flaw to crash the system or escalate their     privileges on the system. (CVE-2020-14356)

  - The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial     of service by using the p->serial_in pointer which uninitialized. (CVE-2020-15437)

  - In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new     filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the     current umask is not considered. (CVE-2020-24394)

  - A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers     to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c     instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452. (CVE-2020-25212)

  - The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete     permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap     rbd block devices, aka CID-f44d04e696fe. (CVE-2020-25284)

  - A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be     used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified     other impact, aka CID-17743798d812. (CVE-2020-25285)

  - A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption     and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause     the system to crash or cause a denial of service. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2020-25643)

  - A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using     PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of     service. (CVE-2020-25704)

  - A flaw was found in the Linux kernel's implementation of MIDI, where an attacker with a local account and     the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to     this specific memory while freed and before use causes the flow of execution to change and possibly allow     for memory corruption or privilege escalation. The highest threat from this vulnerability is to     confidentiality, integrity, as well as system availability. (CVE-2020-27786)

  - A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the     way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.
    (CVE-2020-27835)

  - A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to     read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height. (CVE-2020-28974)

  - A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux     kernel child/parent process identification handling while filtering signal handlers. A local attacker is     able to abuse this flaw to bypass checks to send any signal to a privileged process. (CVE-2020-35508)

  - An issue was discovered in the FUSE filesystem implementation in the Linux kernel before 5.10.6, aka     CID-5d069dbe8aaf. fuse_do_getattr() calls make_bad_inode() in inappropriate situations, causing a system     crash. NOTE: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as     CVE-2021-28950. (CVE-2020-36322)

  - In tun_get_user of tun.c, there is possible memory corruption due to a use after free. This could lead to     local escalation of privilege with System execution privileges required. User interaction is not required     for exploitation. Product: Android; Versions: Android kernel; Android ID: A-146554327. (CVE-2021-0342)

  - In pfkey_dump of af_key.c, there is a possible out-of-bounds read due to a missing bounds check. This     could lead to local information disclosure in the kernel with System execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-110373476     (CVE-2021-0605)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

An update of the linux package has been released.

New kernel packages are available for Slackware 14.2 to fix security issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - In the Linux kernel 5.0.21, mounting a crafted f2fs     filesystem image can cause a NULL pointer dereference     in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This     is related to F2FS_P_SB in     fs/f2fs/f2fs.h.(CVE-2019-19815)

  - ** DISPUTED ** __btrfs_free_extent in     fs/btrfs/extent-tree.c in the Linux kernel through     5.3.12 calls btrfs_print_leaf in a certain ENOENT case,     which allows local users to obtain potentially     sensitive information about register values via the     dmesg program. NOTE: The BTRFS development team     disputes this issues as not being a vulnerability     because '1) The kernel provide facilities to restrict     access to dmesg - dmesg_restrict=1 sysctl option. So     it's really up to the system administrator to judge     whether dmesg access shall be disallowed or not. 2)     WARN/WARN_ON are widely used macros in the linux     kernel. If this CVE is considered valid this would mean     there are literally thousands CVE lurking in the kernel
    - something which clearly is not the     case.'(CVE-2019-19039)

  - ext4_empty_dir in fs/ext4/namei.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be     zero.(CVE-2019-19037)

  - btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because rcu_dereference(root->node) can be     zero.(CVE-2019-19036)

  - ** DISPUTED ** In the Linux kernel 4.19.83, there is a     use-after-free (read) in the debugfs_remove function in     fs/debugfs/inode.c (which is used to remove a file or     directory in debugfs that was previously created with a     call to another debugfs function such as     debugfs_create_file). NOTE: Linux kernel developers     dispute this issue as not being an issue with debugfs,     instead this is an issue with misuse of debugfs within     blktrace.(CVE-2019-19770)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - ** DISPUTED ** An issue was discovered in the Linux     kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c     has a stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa. NOTE: Someone in the security     community disagrees that this is a vulnerability     because the issue 'is a bug in parsing mount options     which can only be specified by a privileged user, so     triggering the bug does not grant any powers not     already held.'.(CVE-2020-11565)

  - A flaw was found in the Linux kernel's implementation     of some networking protocols in IPsec, such as VXLAN     and GENEVE tunnels over IPv6. When an encrypted tunnel     is created between two hosts, the kernel isn't     correctly routing tunneled data over the encrypted link     rather sending the data unencrypted. This would allow     anyone in between the two endpoints to read the traffic     unencrypted. The main threat from this vulnerability is     to data confidentiality.(CVE-2020-1749)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - In the Linux kernel before 5.6.1,     drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink     camera USB driver) mishandles invalid descriptors, aka     CID-a246b4d54770.(CVE-2020-11668)

  - In f2fs_xattr_generic_list of xattr.c, there is a     possible out of bounds read due to a missing bounds     check. This could lead to local information disclosure     with System execution privileges needed. User     interaction is not required for exploitation.Product:
    Android. Versions: Android kernel. Android ID:
    A-120551147.(CVE-2020-0067)

  - An issue was discovered in the Linux kernel before 5.2     on the powerpc platform.
    arch/powerpc/kernel/idle_book3s.S does not have     save/restore functionality for PNV_POWERSAVE_AMR,     PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka     CID-53a712bae5dd.(CVE-2020-11669)

  - In the Linux kernel before 5.5.8, get_raw_socket in     drivers/vhost/net.c lacks validation of an sk_family     field, which might allow attackers to trigger kernel     stack corruption via crafted system     calls.(CVE-2020-10942)

  - In the Linux kernel 5.0.21, mounting a crafted btrfs     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     btrfs_queue_work in     fs/btrfs/async-thread.c.(CVE-2019-19377)

  - relay_open in kernel/relay.c in the Linux kernel     through 5.4.1 allows local users to cause a denial of     service (such as relay blockage) by triggering a NULL     alloc_percpu result.(CVE-2019-19462)

  - An issue was discovered in xfs_agf_verify in     fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through     5.6.10. Attackers may trigger a sync of excessive     duration via an XFS v5 image with crafted metadata, aka     CID-d0c7feaf8767.(CVE-2020-12655)

  - The __mptctl_ioctl function in     drivers/message/fusion/mptctl.c in the Linux kernel     before 5.4.14 allows local users to hold an incorrect     lock during the ioctl operation and trigger a race     condition, i.e., a 'double fetch' vulnerability, aka     CID-28d76df18f0a. NOTE: the vendor states 'The security     impact of this bug is not as bad as it could have been     because these operations are all privileged and root     already has enormous destructive     power.'(CVE-2020-12652)

  - A pivot_root race condition in fs/namespace.c in the     Linux kernel 4.4.x before 4.4.221, 4.9.x before     4.9.221, 4.14.x before 4.14.178, 4.19.x before     4.19.119, and 5.x before 5.3 allows local users to     cause a denial of service (panic) by corrupting a     mountpoint reference counter.(CVE-2020-12114)

  - usb_sg_cancel in drivers/usb/core/message.c in the     Linux kernel before 5.6.8 has a use-after-free because     a transfer occurs without a reference, aka     CID-056ad39ee925.(CVE-2020-12464)

  - An issue was found in Linux kernel before 5.5.4.
    mwifiex_ret_wmm_get_status() in     drivers/net/wireless/marvell/mwifiex/wmm.c allows a     remote AP to trigger a heap-based buffer overflow     because of an incorrect memcpy, aka     CID-3a9b153c5591.(CVE-2020-12654)

  - An issue was found in Linux kernel before 5.5.4. The     mwifiex_cmd_append_vsie_tlv() function in     drivers/net/wireless/marvell/mwifiex/scan.c allows     local users to gain privileges or cause a denial of     service because of an incorrect memcpy and buffer     overflow, aka CID-b70261a288ea.(CVE-2020-12653)

  - An array overflow was discovered in mt76_add_fragment     in drivers/net/wireless/mediatek/mt76/dma.c in the     Linux kernel before 5.5.10, aka CID-b102f0c522cf. An     oversized packet with too many rx fragments can corrupt     memory of adjacent pages.(CVE-2020-12465)

  - An issue was discovered in the Linux kernel before     5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an     out-of-bounds write (by a user with the CAP_NET_ADMIN     capability) because of a lack of headroom     validation.(CVE-2020-12659)

  - An issue was discovered in the Linux kernel through     5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c     has a deadlock if a coalescing operation     fails.(CVE-2020-12771)

  - An issue was discovered in the Linux kernel through     5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka     CID-83c6f2390040.(CVE-2020-12770)

  - A signal access-control issue was discovered in the     Linux kernel before 5.6.5, aka CID-7395ea4e65c2.
    Because exec_id in include/linux/sched.h is only 32     bits, an integer overflow can interfere with a     do_notify_parent protection mechanism. A child process     can send an arbitrary signal to a parent process in a     different security domain. Exploitation limitations     include the amount of elapsed time before an integer     overflow occurs, and the lack of scenarios where     signals to a parent process present a substantial     operational threat.(CVE-2020-12826)

  - A NULL pointer dereference flaw was found in the Linux     kernel's SELinux subsystem in versions before 5.7. This     flaw occurs while importing the Commercial IP Security     Option (CIPSO) protocol's category bitmap into the     SELinux extensible bitmap via the'     ebitmap_netlbl_import' routine. While processing the     CIPSO restricted bitmap tag in the     'cipso_v4_parsetag_rbm' routine, it sets the security     attribute to indicate that the category bitmap is     present, even if it has not been allocated. This issue     leads to a NULL pointer dereference issue while     importing the same category bitmap into SELinux. This     flaw allows a remote network user to crash the system     kernel, resulting in a denial of     service.(CVE-2020-10711)

  - gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)

  - An issue was discovered in the Linux kernel before 5.2.
    There is a NULL pointer dereference in     tw5864_handle_frame() in     drivers/media/pci/tw5864/tw5864-video.c, which may     cause denial of service, aka     CID-2e7682ebfc75.(CVE-2019-20806)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000411 advisory.

    usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because     a transfer occurs without a reference, aka CID-056ad39ee925.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9002 advisory.

    - mwifiex: fix possible heap overflow in mwifiex_process_country_ie() (Ganapathi Bhat)  [Orabug: 30781859]     {CVE-2019-14895} {CVE-2019-14895}
    - ext4: fix ext4_empty_dir() for directories with holes (Jan Kara)  [Orabug: 31265320]  {CVE-2019-19037}     {CVE-2019-19037}
    - netlabel: cope with NULL catmap (Paolo Abeni)  [Orabug: 31350493]  {CVE-2020-10711}
    - scsi: mptfusion: Fix double fetch bug in ioctl (Dan Carpenter)  [Orabug: 31350941]  {CVE-2020-12652}
    - scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo() (Dan Carpenter)  [Orabug: 31350941]     {CVE-2020-12652}
    - USB: core: Fix free-while-in-use bug in the USB S-Glibrary (Alan Stern)  [Orabug: 31350967]     {CVE-2020-12464}
    - drivers: usb: core: Minimize irq disabling in usb_sg_cancel() (David Mosberger)  [Orabug: 31350967]     {CVE-2020-12464}
    - drivers: usb: core: Don't disable irqs in usb_sg_wait() during URB submit. (David Mosberger)  [Orabug:
    31350967]  {CVE-2020-12464}
    - ext4: work around deleting a file with i_nlink == 0 safely (Theodore Ts'o)  [Orabug: 31351014]     {CVE-2019-19447}
    - sched/fair: Don't free p->numa_faults with concurrent readers (Jann Horn)  [Orabug: 32212524]     {CVE-2019-20934}
    - netfilter: nf_conntrack_h323: lost .data_len definition for Q.931/ipv6 (Vasily Averin)  [Orabug:
    32222844]  {CVE-2020-14305}
    - perf/core: Fix race in the perf_mmap_close() function (Jiri Olsa)  [Orabug: 32233360]  {CVE-2020-14351}
    - Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts (Peilin Ye)  [Orabug: 32176264]     {CVE-2020-28915}
    - fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h (Peilin Ye)  [Orabug: 32176264]     {CVE-2020-28915}
    - vt: Disable KD_FONT_OP_COPY (Daniel Vetter)  [Orabug: 32187749]  {CVE-2020-28974}
    - block: Fix use-after-free in blkdev_get() (Jason Yan)  [Orabug: 32194609]  {CVE-2020-15436}
    - icmp: randomize the global rate limiter (Eric Dumazet)  [Orabug: 32227971]  {CVE-2020-25705}
    - tty: make FONTX ioctl use the tty pointer they were actually passed (Linus Torvalds)  [Orabug: 32122731]     {CVE-2020-25668}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1739 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

    * kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver     (CVE-2019-19523)

    * kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver     (CVE-2019-19528)

    * kernel: possible out of bounds write in kbd_keycode of keyboard.c (CVE-2020-0431)

    * kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)

    * kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c (CVE-2020-12464)

    * kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314)

    * kernel: Use After Free vulnerability in cgroup BPF component (CVE-2020-14356)

    * kernel: NULL pointer dereference in serial8250_isa_init_ports function in     drivers/tty/serial/8250/8250_core.c (CVE-2020-15437)

    * kernel: umask not applied on filesystem without ACL support (CVE-2020-24394)

    * kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)

    * kernel: incomplete permission checking for access to rbd devices (CVE-2020-25284)

    * kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c (CVE-2020-25285)

    * kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read     overflow (CVE-2020-25643)

    * kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)

    * kernel: use-after-free in kernel midi subsystem (CVE-2020-27786)

    * kernel: child process is able to access parent mm through hfi dev file handle (CVE-2020-27835)

    * kernel: slab-out-of-bounds read in fbcon (CVE-2020-28974)

    * kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent (CVE-2020-35508)

    * kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege     (CVE-2021-0342)

    * kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in     drivers/media/usb/gspca/ov519.c (CVE-2020-11608)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 15 SP1 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).

CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).

CVE-2020-10781: zram sysfs resource consumption was fixed (bnc#1173074).

CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).

CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c had a memory leak, aka CID-28ebeb8db770 (bnc#1173514).

CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).

CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).

CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).

CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).

CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).

CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).

CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).

CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c did not call snd_card_free for a failure path, which caused a memory leak, aka CID-9453264ef586 (bnc#1172458).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

CVE-2019-2182

Hanjun Guo and Lei Li reported a race condition in the arm64 virtual memory management code, which could lead to an information disclosure, denial of service (crash), or possibly privilege escalation.

CVE-2019-5108

Mitchell Frank of Cisco discovered that when the IEEE 802.11 (WiFi) stack was used in AP mode with roaming, it would trigger roaming for a newly associated station before the station was authenticated. An attacker within range of the AP could use this to cause a denial of service, either by filling up a switching table or by redirecting traffic away from other stations.

CVE-2019-19319

Jungyeon discovered that a crafted filesystem can cause the ext4 implementation to deallocate or reallocate journal blocks. A user permitted to mount filesystems could use this to cause a denial of service (crash), or possibly for privilege escalation.

CVE-2019-19462

The syzbot tool found a missing error check in the 'relay' library used to implement various files under debugfs. A local user permitted to access debugfs could use this to cause a denial of service (crash) or possibly for privilege escalation.

CVE-2019-19768

Tristan Madani reported a race condition in the blktrace debug facility that could result in a use-after-free. A local user able to trigger removal of block devices could possibly use this to cause a denial of service (crash) or for privilege escalation.

CVE-2019-20806

A potential NULL pointer dereference was discovered in the tw5864 media driver. The security impact of this is unclear.

CVE-2019-20811

The Hulk Robot tool found a reference-counting bug in an error path in the network subsystem. The security impact of this is unclear.

CVE-2020-0543

Researchers at VU Amsterdam discovered that on some Intel CPUs supporting the RDRAND and RDSEED instructions, part of a random value generated by these instructions may be used in a later speculative execution on any core of the same physical CPU. Depending on how these instructions are used by applications, a local user or VM guest could use this to obtain sensitive information such as cryptographic keys from other users or VMs.

This vulnerability can be mitigated by a microcode update, either as part of system firmware (BIOS) or through the intel-microcode package in Debian's non-free archive section. This kernel update only provides reporting of the vulnerability and the option to disable the mitigation if it is not needed.

CVE-2020-2732

Paulo Bonzini discovered that the KVM implementation for Intel processors did not properly handle instruction emulation for L2 guests when nested virtualization is enabled. This could allow an L2 guest to cause privilege escalation, denial of service, or information leaks in the L1 guest.

CVE-2020-8428

Al Viro discovered a potential use-after-free in the filesystem core (vfs). A local user could exploit this to cause a denial of service (crash) or possibly to obtain sensitive information from the kernel.

CVE-2020-8647, CVE-2020-8649

The Hulk Robot tool found a potential MMIO out-of-bounds access in the vgacon driver. A local user permitted to access a virtual terminal (/dev/tty1 etc.) on a system using the vgacon driver could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-8648

The syzbot tool found a race condition in the the virtual terminal driver, which could result in a use-after-free. A local user permitted to access a virtual terminal could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-9383

Jordy Zomer reported an incorrect range check in the floppy driver which could lead to a static out-of-bounds access. A local user permitted to access a floppy drive could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-10711

Matthew Sheets reported NULL pointer dereference issues in the SELinux subsystem while receiving CIPSO packet with null category. A remote attacker can take advantage of this flaw to cause a denial of service (crash). Note that this issue does not affect the binary packages distributed in Debian as CONFIG_NETLABEL is not enabled.

CVE-2020-10732

An information leak of kernel private memory to userspace was found in the kernel's implementation of core dumping userspace processes.

CVE-2020-10751

Dmitry Vyukov reported that the SELinux subsystem did not properly handle validating multiple messages, which could allow a privileged attacker to bypass SELinux netlink restrictions.

CVE-2020-10757

Fan Yang reported a flaw in the way mremap handled DAX hugepages, allowing a local user to escalate their privileges

CVE-2020-10942

It was discovered that the vhost_net driver did not properly validate the type of sockets set as back-ends. A local user permitted to access /dev/vhost-net could use this to cause a stack corruption via crafted system calls, resulting in denial of service (crash) or possibly privilege escalation.

CVE-2020-11494

It was discovered that the slcan (serial line CAN) network driver did not fully initialise CAN headers for received packets, resulting in an information leak from the kernel to user-space or over the CAN network.

CVE-2020-11565

Entropy Moe reported that the shared memory filesystem (tmpfs) did not correctly handle an 'mpol' mount option specifying an empty node list, leading to a stack-based out-of-bounds write. If user namespaces are enabled, a local user could use this to cause a denial of service (crash) or possibly for privilege escalation.

CVE-2020-11608, CVE-2020-11609, CVE-2020-11668

It was discovered that the ov519, stv06xx, and xirlink_cit media drivers did not properly validate USB device descriptors. A physically present user with a specially constructed USB device could use this to cause a denial of service (crash) or possibly for privilege escalation.

CVE-2020-12114

Piotr Krysiuk discovered a race condition between the umount and pivot_root operations in the filesystem core (vfs). A local user with the CAP_SYS_ADMIN capability in any user namespace could use this to cause a denial of service (crash).

CVE-2020-12464

Kyungtae Kim reported a race condition in the USB core that can result in a use-after-free. It is not clear how this can be exploited, but it could result in a denial of service (crash or memory corruption) or privilege escalation.

CVE-2020-12652

Tom Hatskevich reported a bug in the mptfusion storage drivers. An ioctl handler fetched a parameter from user memory twice, creating a race condition which could result in incorrect locking of internal data structures. A local user permitted to access /dev/mptctl could use this to cause a denial of service (crash or memory corruption) or for privilege escalation.

CVE-2020-12653

It was discovered that the mwifiex WiFi driver did not sufficiently validate scan requests, resulting a potential heap buffer overflow. A local user with CAP_NET_ADMIN capability could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-12654

It was discovered that the mwifiex WiFi driver did not sufficiently validate WMM parameters received from an access point (AP), resulting a potential heap buffer overflow. A malicious AP could use this to cause a denial of service (crash or memory corruption) or possibly to execute code on a vulnerable system.

CVE-2020-12770

It was discovered that the sg (SCSI generic) driver did not correctly release internal resources in a particular error case. A local user permitted to access an sg device could possibly use this to cause a denial of service (resource exhaustion).

CVE-2020-13143

Kyungtae Kim reported a potential heap out-of-bounds write in the USB gadget subsystem. A local user permitted to write to the gadget configuration filesystem could use this to cause a denial of service (crash or memory corruption) or potentially for privilege escalation.

For Debian 8 'Jessie', these problems have been fixed in version 4.9.210-1+deb9u1~deb8u1. This version also fixes some related bugs that do not have their own CVE IDs, and a regression in the macvlan driver introduced in the previous security update (bug #952660).

We recommend that you upgrade your linux-4.9 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
137608	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1587-1)	Nessus	SuSE Local Security Checks	2020/6/18	2024/3/6	high
157595	AlmaLinux 8 : kernel (ALSA-2021:1578)	Nessus	Alma Linux Local Security Checks	2022/2/9	2023/11/10	high
137516	EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-1674)	Nessus	Huawei Local Security Checks	2020/6/17	2023/4/25	critical
137190	Photon OS 3.0: Linux PHSA-2020-3.0-0100	Nessus	PhotonOS Local Security Checks	2020/6/6	2025/8/22	high
137391	Slackware 14.2 : Slackware 14.2 kernel (SSA:2020-163-01)	Nessus	Slackware Local Security Checks	2020/6/12	2024/3/7	high
137805	EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1698)	Nessus	Huawei Local Security Checks	2020/6/25	2024/3/5	high
281949	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000411)	Nessus	Unity Linux Local Security Checks	2026/1/7	2026/1/7	medium
137616	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1603-1)	Nessus	SuSE Local Security Checks	2020/6/18	2024/3/6	high
144802	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9002)	Nessus	Oracle Linux Local Security Checks	2021/1/7	2026/2/9	critical
149660	RHEL 8 : kernel-rt (RHSA-2021:1739)	Nessus	Red Hat Local Security Checks	2021/5/19	2024/11/7	high
140378	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:2487-1)	Nessus	SuSE Local Security Checks	2020/9/8	2022/5/12	high
137339	Debian DLA-2242-1 : linux-4.9 security update	Nessus	Debian Local Security Checks	2020/6/11	2024/3/7	high

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