The SUSE Linux Enterprise 15 kernel version 4.12.14 was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-10638: Attackers used to be able to track the Linux kernel by the IP ID values the kernel produces for connection-less protocols.
When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack could have been conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses. [bnc#1140575]

CVE-2019-10639: The Linux kernel used to allow Information Exposure (partial kernel address disclosure), leading to a KASLR bypass.
Specifically, it was possible to extract the KASLR kernel image offset using the IP ID values the kernel produces for connection-less protocols. When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). This key contains enough bits from a kernel address (of a static variable) so when the key was extracted (via enumeration), the offset of the kernel image was exposed. This attack could be carried out remotely by the attacker forcing the target device to send UDP or ICMP traffic to attacker-controlled IP addresses. Forcing a server to send UDP traffic is trivial if the server is a DNS server.
ICMP traffic is trivial if the server answers ICMP Echo requests (ping). For client targets, if the target visits the attacker's web page, then WebRTC or gQUIC can be used to force UDP traffic to attacker-controlled IP addresses. [bnc#1140577]

CVE-2018-20836: A race condition used to exist in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free. [bnc#1134395]

CVE-2019-10126: A heap-based buffer overflow in the wireless driver code was fixed. This issue might have lead to memory corruption and possibly other consequences. [bnc#1136935]

CVE-2019-11599: The coredump implementation did not use locking or other mechanisms to prevent vma layout or vma flags changes while it ran, which allowed local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls.
[bnc#1131645].

CVE-2019-12614: There was an unchecked kstrdup of prop->name on PowerPC platforms, which allowed an attacker to cause a denial of service (NULL pointer dereference and system crash). [bnc#1137194]

CVE-2018-16871: A flaw was found in the NFS implementation. An attacker who was able to mount an exported NFS filesystem was able to trigger a NULL pointer dereference by an invalid NFS sequence. This could panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will were lost.
[bnc#1137103]

CVE-2019-12819: The function __mdiobus_register() used to call put_device(), which would trigger a fixed_mdio_bus_init use-after-free error. This would cause a denial of service. [bnc#1138291]

CVE-2019-12818: The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller did not check for this, it could trigger a NULL pointer dereference. This would cause denial of service. [bnc#1138293]

CVE-2019-12456: An issue in the MPT3COMMAND case in _ctl_ioctl_main() allowed local users to cause a denial of service or possibly have unspecified other impact by changing the value of ioc_number between two kernel reads of that value, aka a 'double fetch' vulnerability.
[bsc#1136922]

CVE-2019-12380: An issue was in the EFI subsystem existed that mishandled memory allocation failures. Note, however, that all relevant code runs only at boot-time, before any user processes are started. Therefore, there was no possibility for an unprivileged user to exploit this issue. [bnc#1136598]

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.

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

  - The xfs_bmap_extents_to_btree function in     fs/xfs/libxfs/xfs_bmap.c in the Linux kernel through     4.16.3 allows local users to cause a denial of service     (xfs_bmapi_write NULL pointer dereference) via a     crafted xfs image.(CVE-2018-10323)

  - A flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause a use-after-free in     ext4_xattr_set_entry function and a denial of service     or unspecified other impact may occur by renaming a     file in a crafted ext4 filesystem     image.(CVE-2018-10879)

  - A flaw was found in the Linux kernel's ext4 filesystem.
    A local user can cause an out-of-bound write in     jbd2_journal_dirty_metadata(), a denial of service, and     a system crash by mounting and operating on a crafted     ext4 filesystem image. (CVE-2018-10883)

  - The Linux kernel was found vulnerable to an integer     overflow in the     drivers/video/fbdev/uvesafb.c:uvesafb_setcmap()     function. The vulnerability could result in local     attackers being able to crash the kernel or potentially     elevate privileges.(CVE-2018-13406)

  - It was found that paravirt_patch_call/jump() functions     in the arch/x86/kernel/paravirt.c in the Linux kernel     mishandles certain indirect calls, which makes it     easier for attackers to conduct Spectre-v2 attacks     against paravirtualized guests. (CVE-2018-15594)

  - A flaw was found in the Linux kernel's NFS     implementation. An attacker, who is able to mount an     exported NFS filesystem, is able to trigger a null     pointer dereference by using an invalid NFS sequence.
    This can panic the machine and deny access to the NFS     server. Any outstanding disk writes to the NFS server     will be lost. (CVE-2018-16871)

  - A vulnerability was found in the Linux kernelaEURtms     floppy disk driver implementation. A local attacker     with access to the floppy device could call     set_geometry in drivers/block/floppy.c, which does not     validate the sect and head fields, causing an integer     overflow and out-of-bounds read. This flaw may crash     the system or allow an attacker to gather information     causing subsequent successful attacks. (CVE-2019-14283)

  - A vulnerability was found in the Linux kernelaEURtms     floppy disk driver implementation. A local attacker     with access to the floppy disk device file (/dev/fd0     through to /dev/fdN) can create a situation that causes     the kernel to divide by zero. This requires two     consecutive ioctl calls to be issued. The first ioctl     call sets the sector and rate values, and the second     ioctl is the call to format the floppy disk to the     appropriate values. This flaw can cause the system to     divide by zero and panic the host. No media (floppy) is     required to be inserted for this attack to work     properly.(CVE-2019-14284)

  - In the Linux kernel through 5.2.1 on the powerpc     platform, when hardware transactional memory is     disabled, a local user can cause a denial of service     (TM Bad Thing exception and system crash) via a     sigreturn() system call that sends a crafted signal     frame. This affects arch/powerpc/kernel/signal_32.c and     arch/powerpc/kernel/signal_64.c.(CVE-2019-13648)

  - In parse_hid_report_descriptor in     drivers/input/tablet/gtco.c in the Linux kernel through     5.2.1, a malicious USB device can send an HID report     that triggers an out-of-bounds write during generation     of debugging messages. (CVE-2019-13631)

  - An issue was discovered in drm_load_edid_firmware in     drivers/gpu/drm/drm_edid_load.c in the Linux kernel     through 5.1.5. There is an unchecked kstrdup of fwstr,     which might allow an attacker to cause a denial of     service (NULL pointer dereference and system crash).
    NOTE: The vendor disputes this issues as not being a     vulnerability because kstrdup() returning NULL is     handled sufficiently and there is no chance for a NULL     pointer dereference. (CVE-2019-12382)

  - An issue was discovered in dlpar_parse_cc_property in     arch/powerpc/platforms/pseries/dlpar.c in the Linux     kernel through 5.1.6. There is an unchecked kstrdup of     prop-i1/4zname, which might allow an attacker to cause a     denial of service (NULL pointer dereference and system     crash). (CVE-2019-12614)

  - An issue was discovered in the Linux kernel before     4.18.7. In block/blk-core.c, there is an
    __blk_drain_queue() use-after-free because a certain     error case is mishandled.(CVE-2018-20856)

  - An issue was discovered in ip_ra_control in     net/ipv4/ip_sockglue.c in the Linux kernel through     5.1.5. There is an unchecked kmalloc of new_ra, which     might allow an attacker to cause a denial of service     (NULL pointer dereference and system crash). NOTE: this     is disputed because new_ra is never used if it is     NULL.(CVE-2019-12381)

  - An issue was discovered in ip6_ra_control in     net/ipv6/ipv6_sockglue.c in the Linux kernel through     5.1.5. There is an unchecked kmalloc of new_ra, which     might allow an attacker to cause a denial of service     (NULL pointer dereference and system crash). NOTE: This     has been disputed as not an issue.(CVE-2019-12378)

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.

According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities :

  - tcp: integer overflow while processing SACK blocks     allows remote denial of service. An integer overflow     was found in the way the Linux kernel's networking     subsystem processed TCP Selective Acknowledgment (SACK)     segments. While processing SACK segments, the Linux     kernel's socket buffer (SKB) data structure becomes     fragmented. Each fragment is about TCP maximum segment     size (MSS) bytes. To efficiently process SACK blocks,     the Linux kernel merges multiple fragmented SKBs into     one, potentially overflowing the variable holding the     number of segments. A remote attacker could use this     flaw to crash the Linux kernel by sending a crafted     sequence of SACK segments on a TCP connection with     small value of TCP MSS, resulting in a denial of     service.

  - nfs: NULL pointer dereference due to an anomalized NFS     message sequence. An attacker, who is able to mount an     exported NFS filesystem, is able to trigger a null     pointer dereference by using an invalid NFS sequence.
    This can panic the machine and deny access to the NFS     server. Any outstanding disk writes to the NFS server     will be lost.

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

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-1873 advisory.

    - [net] tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (Florian Westphal) [1719914 1719915]     {CVE-2019-11479}
    - [net] tcp: add tcp_min_snd_mss sysctl (Florian Westphal) [1719914 1719915] {CVE-2019-11479}
    - [net] tcp: tcp_fragment() should apply sane memory limits (Florian Westphal) [1719849 1719850]     {CVE-2019-11478}
    - [net] tcp: limit payload size of sacked skbs (Florian Westphal) [1719594 1719595] {CVE-2019-11477}
    - [net] tcp: pass previous skb to tcp_shifted_skb() (Florian Westphal) [1719594 1719595] {CVE-2019-11477}
    - [drm] drm/i915/gvt: Fix mmap range check (Alex Williamson) [1713566 1713567] {CVE-2019-11085}
    - [char] ipmi_si: fix use-after-free of resource->name (Tony Camuso) [1714407 1714408] {CVE-2019-11811}
    - [fs] sunrpc: make visible processing error in bc_svc_process() ('J. Bruce Fields') [1660818 1653675]     {CVE-2018-16884}
    - [fs] sunrpc: remove unused xpo_prep_reply_hdr callback ('J. Bruce Fields') [1660818 1653675]     {CVE-2018-16884}
    - [fs] sunrpc: remove svc_tcp_bc_class ('J. Bruce Fields') [1660818 1653675] {CVE-2018-16884}
    - [fs] sunrpc: replace svc_serv->sv_bc_xprt by boolean flag ('J. Bruce Fields') [1660818 1653675]     {CVE-2018-16884}
    - [fs] sunrpc: use-after-free in svc_process_common() ('J. Bruce Fields') [1660818 1653675]     {CVE-2018-16884}
    - [fs] svcauth_gss: Close connection when dropping an incoming message ('J. Bruce Fields') [1660818     1653675] {CVE-2018-16884}
    - [fs] nfsd: COPY and CLONE operations require the saved filehandle to be set (Scott Mayhew) [1672147     1645353] {CVE-2018-16871}

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 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1891 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: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

    * kernel: insufficient input validation in kernel mode driver in Intel i915 graphics leads to privilege     escalation (CVE-2019-11085)

    * kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

    * kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c     (CVE-2019-11811)

    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.

    Bug Fix(es):

    * kernel-rt: update to the RHEL7.6.z batch#6 source tree (BZ#1718400)

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.

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

  - In the tun subsystem in the Linux kernel before     4.13.14, dev_get_valid_name is not called before     register_netdevice. This allows local users to cause a     denial of service (NULL pointer dereference and panic)     via an ioctl(TUNSETIFF) call with a dev name containing     a / character. This is similar to     CVE-2013-4343.(CVE-2018-7191)

  - A memory leak in the crypto_report() function in     crypto/crypto_user_base.c in the Linux kernel through     5.3.11 allows attackers to cause a denial of service     (memory consumption) by triggering crypto_report_alg()     failures, aka CID-ffdde5932042.(CVE-2019-19062)

  - An issue was discovered in net/ipv4/sysctl_net_ipv4.c     in the Linux kernel before 5.0.11. There is a     net/ipv4/tcp_input.c signed integer overflow in     tcp_ack_update_rtt() when userspace writes a very large     integer to /proc/sys/net/ipv4/tcp_min_rtt_wlen, leading     to a denial of service or possibly unspecified other     impact, aka CID-19fad20d15a6.(CVE-2019-18805)

  - In the Linux kernel before 5.0, a memory leak exists in     sit_init_net() in net/ipv6/sit.c when register_netdev()     fails to register sitn->fb_tunnel_dev, which may cause     denial of service, aka     CID-07f12b26e21a.(CVE-2019-16994)

  - An issue was discovered in the Linux kernel before     5.0.6. There is a memory leak issue when idr_alloc()     fails in genl_register_family() in     net/netlink/genetlink.c.(CVE-2019-15921)

  - In the Linux kernel before 5.1.13, there is a memory     leak in drivers/scsi/libsas/sas_expander.c when SAS     expander discovery fails. This will cause a BUG and     denial of service.(CVE-2019-15807)

  - An issue was discovered in xfs_setattr_nonsize in     fs/xfs/xfs_iops.c in the Linux kernel through 5.2.9.
    XFS partially wedges when a chgrp fails on account of     being out of disk quota. xfs_setattr_nonsize is failing     to unlock the ILOCK after the xfs_qm_vop_chown_reserve     call fails. This is primarily a local DoS attack     vector, but it might result as well in remote DoS if     the XFS filesystem is exported for instance via     NFS.(CVE-2019-15538)

  - An out-of-bounds access issue was found in the Linux     kernel, all versions through 5.3, in the way Linux     kernel's KVM hypervisor implements the Coalesced MMIO     write operation. It operates on an MMIO ring buffer     'struct kvm_coalesced_mmio' object, wherein write     indices 'ring->first' and 'ring->last' value could be     supplied by a host user-space process. An unprivileged     host user or process with access to '/dev/kvm' device     could use this flaw to crash the host kernel, resulting     in a denial of service or potentially escalating     privileges on the system.(CVE-2019-14821)

  - ** DISPUTED ** An issue was discovered in ip_ra_control     in net/ipv4/ip_sockglue.c in the Linux kernel through     5.1.5. There is an unchecked kmalloc of new_ra, which     might allow an attacker to cause a denial of service     (NULL pointer dereference and system crash). NOTE: this     is disputed because new_ra is never used if it is     NULL.(CVE-2019-12381)

  - ** DISPUTED ** An issue was discovered in     ip6_ra_control in net/ipv6/ipv6_sockglue.c in the Linux     kernel through 5.1.5. There is an unchecked kmalloc of     new_ra, which might allow an attacker to cause a denial     of service (NULL pointer dereference and system crash).
    NOTE: This has been disputed as not an     issue.(CVE-2019-12378)

  - An issue was discovered in fs/xfs/xfs_super.c in the     Linux kernel before 4.18. A use after free exists,     related to xfs_fs_fill_super failure.(CVE-2018-20976)

  - An issue was discovered in the Linux kernel before     4.18.7. In block/blk-core.c, there is an
    __blk_drain_queue() use-after-free because a certain     error case is mishandled.(CVE-2018-20856)

  - A flaw was found in the Linux kernel's NFS41+     subsystem. NFS41+ shares mounted in different network     namespaces at the same time can make bc_svc_process()     use wrong back-channel IDs and cause a use-after-free     vulnerability. Thus a malicious container user can     cause a host kernel memory corruption and a system     panic. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out.(CVE-2018-16884)

  - A flaw was found in the Linux kernel's NFS     implementation, all versions 3.x and all versions 4.x     up to 4.20. An attacker, who is able to mount an     exported NFS filesystem, is able to trigger a null     pointer dereference by using an invalid NFS sequence.
    This can panic the machine and deny access to the NFS     server. Any outstanding disk writes to the NFS server     will be lost.(CVE-2018-16871)

  - An issue was found in the Linux kernel ipv6     implementation of GRE tunnels which allows a remote     attacker to trigger an out-of-bounds access. At this     time we understand no trust barrier has been crossed     and there is no security implications in this     flaw.(CVE-2017-5897)

  - A flaw was found in the Linux kernel's vfio interface     implementation that permits violation of the user's     locked memory limit. If a device is bound to a vfio     driver, such as vfio-pci, and the local attacker is     administratively granted ownership of the device, it     may cause a system memory exhaustion and thus a denial     of service (DoS). Versions 3.10, 4.14 and 4.18 are     vulnerable.(CVE-2019-3882)

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 remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0740 advisory.

  - A flaw was found in the Linux kernel's NFS implementation, all versions 3.x and all versions 4.x up to     4.20. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer     dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS     server. Any outstanding disk writes to the NFS server will be lost. (CVE-2018-16871)

  - The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel before 5.0.15 allows a     local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command,     because a name field may not end with a '\0' character. (CVE-2019-11884)

  - In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of     other users' processes via a Facility Unavailable exception. To exploit the venerability, a local user     starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector     registers. At some point, the vector registers will be corrupted with the values from a different local     Linux process because of a missing arch/powerpc/kernel/process.c check. (CVE-2019-15030)

  - An issue was discovered in the Linux kernel before 5.0.1. There is a memory leak in     register_queue_kobjects() in net/core/net-sysfs.c, which will cause denial of service. (CVE-2019-15916)

  - rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel through 5.3.6 lacks a     certain upper-bound check, leading to a buffer overflow. (CVE-2019-17666)

  - An issue was discovered in net/ipv4/sysctl_net_ipv4.c in the Linux kernel before 5.0.11. There is a     net/ipv4/tcp_input.c signed integer overflow in tcp_ack_update_rtt() when userspace writes a very large     integer to /proc/sys/net/ipv4/tcp_min_rtt_wlen, leading to a denial of service or possibly unspecified     other impact, aka CID-19fad20d15a6. (CVE-2019-18805)

  - A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before     5.1-rc1. (CVE-2019-3459)

  - A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel     before 5.1-rc1. (CVE-2019-3460)

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

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4746 advisory.

    - ptrace: Fix ->ptracer_cred handling for PTRACE_TRACEME (Jann Horn)  [Orabug: 30074408]  {CVE-2019-13272}
    - Input: gtco - bounds check collection indent level (Grant Hernandez)  [Orabug: 30074412]     {CVE-2019-13631}
    - x86/speculation: Exclude ATOMs from speculation through SWAPGS (Thomas Gleixner)  [Orabug: 29967570]     {CVE-2019-1125}
    - x86/speculation: Enable Spectre v1 swapgs mitigations (Josh Poimboeuf)  [Orabug: 29967570]     {CVE-2019-1125}
    - x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations (Josh Poimboeuf)  [Orabug:
    29967570]  {CVE-2019-1125}
    - nfsd: COPY and CLONE operations require the saved filehandle to be set (Scott Mayhew)  [Orabug:
    29925432]  {CVE-2018-16871}
    - ext4: zero out the unused memory region in the extent tree block (Sriram Rajagopalan)  [Orabug:
    29925498]  {CVE-2019-11833} {CVE-2019-11833}
    - drm/edid: Fix a missing-check bug in drm_load_edid_firmware() (Gen Zhang)  [Orabug: 29925968]     {CVE-2019-12382}
    - ip_sockglue: Fix missing-check bug in ip_ra_control() (Gen Zhang)  [Orabug: 29926004]  {CVE-2019-12381}

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

The following security bugs were fixed :

CVE-2018-12126 CVE-2018-12127 CVE-2018-12130: Microarchitectural Store Buffer Data Sampling (MSBDS): Stored buffers on some microprocessors utilizing speculative execution which may have allowed an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here :

https://www.intel.com/content/dam/www/public/us/en/documents/corporate
-info rmation/SA00233-microcode-update-guidance_05132019.
(bsc#1103186)CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may have allowed an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here :

https://www.intel.com/content/dam/www/public/us/en/documents/corporate
-info rmation/SA00233-microcode-update-guidance_05132019.
(bsc#1111331)CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel There was an unchecked kstrdup of fwstr, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). (bsc#1136586)

CVE-2019-10124: An issue was discovered in the hwpoison implementation in mm/memory-failure.c in the Linux kernel. When soft_offline_in_use_page() runs on a thp tail page after pmd is split, an attacker could cause a denial of service (bsc#1130699).

CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel has multiple race conditions. (bsc#1133188)

CVE-2019-11811: An issue was discovered in the Linux kernel There was a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module was removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c. (bsc#1134397)

CVE-2019-11487: The Linux kernel allowed page reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It could occur with FUSE requests.
(bsc#1133190)

CVE-2019-12818: The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This used to affect nfc_llcp_build_gb in net/nfc/llcp_core.c. (bsc#1138293)

CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem. (bsc#1135281)

CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux kernel allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server. (bsc#1120843)

CVE-2018-7191: In the tun subsystem in the Linux kernel, dev_get_valid_name was not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. (bsc#1135603)

CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel allowed a local user to obtain potentially sensitive information from kernel stack memory via a hidPCONNADD command, because a name field may not end with a '\0' character. (bsc#1134848)

CVE-2019-9500: An issue was discovered that lead to brcmfmac heap buffer overflow. (bsc#1132681)

CVE-2019-11085: Insufficient input validation in Kernel Mode Driver in Intel(R) i915 Graphics for Linux may have allowed an authenticated user to potentially enable escalation of privilege via local access.
(bsc#1135278)

CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel There was a race condition leading to a use-after-free, related to net namespace cleanup. (bsc#1135278)

CVE-2018-16880: A flaw was found in the Linux kernel's handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, could trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may have lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (bsc#1122767)

CVE-2019-12819: The function __mdiobus_register() called put_device(), which triggered a fixed_mdio_bus_init use-after-free. This would cause a denial of service. (bsc#1138291)

CVE-2019-3882: A flaw was found in the Linux kernel's vfio interface implementation that permitted violation of the user's locked memory limit. If a device was bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may have caused a system memory exhaustion and thus a denial of service (DoS). (bsc#1131427)

CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network. (bsc#1136424)

CVE-2019-8564: An issue was discoved which meant that brcmfmac frame validation could be bypassed. (bsc#1132673)

CVE-2019-9503: An issue was discoved which meant that brcmfmac frame validation could be bypassed. (bsc#1132828)

CVE-2019-9003: In the Linux kernel, attackers could trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a 'service ipmievd restart' loop. (bsc#1126704)

CVE-2017-5753: Systems with microprocessors utilizing speculative execution and branch prediction may have allowed unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.

CVE-2019-11478: It was possible to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. An attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection.

CVE-2019-11479: An attacker could force the Linux kernel to segment its responses into multiple TCP segments. This would drastically increased the bandwidth required to deliver the same amount of data.
Further, it would consume additional resources such as CPU and NIC processing power.

CVE-2018-16871: A NULL pointer dereference due to an anomalized NFS message sequence was fixed. (bnc#1137103).

CVE-2019-12614: An issue was discovered in dlpar_parse_cc_property in arch/powerpc/platforms/pseries/dlpar.c. There was an unchecked kstrdup of prop->name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash) (bnc#1137194).

CVE-2019-12817: On the PowerPC architecture, local attackers could access other users processes memory (bnc#1138263).

CVE-2018-20836: An issue was discovered in the Linux kernel There was a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free (bnc#1134395).

CVE-2019-10638: In the Linux kernel, a device could be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may have been conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses (bnc#1140575 1140577).

CVE-2019-10639: The Linux kernel allowed Information Exposure (partial kernel address disclosure), leading to a KASLR bypass. Specifically, it was possible to extract the KASLR kernel image offset using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic was sent to multiple destination IP addresses, it was possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). This key contains enough bits from a kernel address (of a static variable) so when the key was extracted (via enumeration), the offset of the kernel image was exposed. This attack could be carried out remotely, by the attacker forcing the target device to send UDP or ICMP (or certain other) traffic to attacker-controlled IP addresses. Forcing a server to send UDP traffic is trivial if the server is a DNS server. ICMP traffic is trivial if the server answers ICMP Echo requests (ping). For client targets, if the target visits the attacker's web page, then WebRTC or gQUIC can be used to force UDP traffic to attacker-controlled IP addresses. NOTE: this attack against KASLR became viable because IP ID generation was changed to have a dependency on an address associated with a network namespace (bnc#1140577).

CVE-2019-11599: The coredump implementation in the Linux kernel did not use locking or other mechanisms to prevent vma layout or vma flags changes while it ran, which allowed local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmget_not_zero or get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c (bnc#1131645 1133738).

CVE-2019-13233: In arch/x86/lib/insn-eval.c in the Linux kernel, there was a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bounds violation (bnc#1140454).

CVE-2018-20855: An issue was discovered in the Linux kernel In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace(bsc#1143045).

CVE-2019-1125: Exclude ATOMs from speculation through SWAPGS (bsc#1139358).

CVE-2019-11810: An issue was discovered in the Linux kernel A NULL pointer dereference could occur when megasas_create_frame_pool() failed in megasas_alloc_cmds() in drivers/scsi/megaraid/megaraid_sas_base.c. This caused a Denial of Service, related to a use-after-free (bnc#1134399).

CVE-2019-13631: In parse_hid_report_descriptor in drivers/input/tablet/gtco.c in the Linux kernel, a malicious USB device could send an HID report that triggered an out-of-bounds write during generation of debugging messages. (bnc#1142023)

CVE-2019-13648: In the Linux kernel on the powerpc platform, when hardware transactional memory was disabled, a local user could cause a denial of service (TM Bad Thing exception and system crash) via a sigreturn() system call that sent a crafted signal frame.
(bnc#1142254)

CVE-2019-14283: In the Linux kernel, set_geometry in drivers/block/floppy.c did not validate the sect and head fields, as demonstrated by an integer overflow and out-of-bounds read. It could be triggered by an unprivileged local user when a floppy disk was inserted. NOTE: QEMU creates the floppy device by default.
(bnc#1143191)

CVE-2019-14284: In the Linux kernel, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero.
(bnc#1143189)

CVE-2019-12456: An issue was discovered in the MPT3COMMAND case in
_ctl_ioctl_main in drivers/scsi/mpt3sas/mpt3sas_ctl.c in the Linux. It allows local users to cause a denial of service or possibly have unspecified other impact by changing the value of ioc_number between two kernel reads of that value, aka a 'double fetch' vulnerability.
NOTE: a third-party reports that this is unexploitable because the doubly fetched value is not used. (bsc#1136922)

CVE-2019-12380: An issue was discovered in the efi subsystem in the Linux kernel phys_efi_set_virtual_address_map in arch/x86/platform/efi/efi.c and efi_call_phys_prolog in arch/x86/platform/efi/efi_64.c mishandle memory allocation failures.
(bsc#1136598)

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.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
126744	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:1855-1) (SACK Slowness)	Nessus	SuSE Local Security Checks	2019/7/16	2022/12/6	critical
126897	openSUSE Security Update : the Linux Kernel (openSUSE-2019-1757)	Nessus	SuSE Local Security Checks	2019/7/22	2024/5/9	critical
128842	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1919)	Nessus	Huawei Local Security Checks	2019/9/16	2024/4/25	high
133458	Virtuozzo 7 : readykernel-patch (VZA-2019-068)	Nessus	Virtuozzo Local Security Checks	2020/2/4	2024/3/28	high
127603	Oracle Linux 7 : kernel (ELSA-2019-1873)	Nessus	Oracle Linux Local Security Checks	2019/8/12	2024/10/22	high
127623	RHEL 7 : kernel-rt (RHSA-2019:1891)	Nessus	Red Hat Local Security Checks	2019/8/12	2024/11/6	high
134735	EulerOS Virtualization 3.0.2.2 : kernel (EulerOS-SA-2020-1269)	Nessus	Huawei Local Security Checks	2020/3/20	2024/3/21	critical
208605	CentOS 7 : kernel-alt (RHSA-2020:0740)	Nessus	CentOS Local Security Checks	2024/10/9	2024/10/9	critical
127985	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2019-4746)	Nessus	Oracle Linux Local Security Checks	2019/8/20	2024/11/1	high
129284	SUSE SLED15 / SLES15 Security Update : kernel-source-rt (SUSE-SU-2019:2430-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (SACK Panic) (SACK Slowness) (Spectre)	Nessus	SuSE Local Security Checks	2019/9/24	2022/12/5	high

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