The version of kernel installed on the remote host is prior to 5.4.95-42.163. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-020 advisory.

    A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel. There was a race problem in     trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service     problem (DOS). This flaw could even allow a local attacker with special user  privilege to a kernel     information leak threat. (CVE-2020-27825)

    A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an     attacker with a local account to leak information about kernel internal addresses. The highest threat from     this vulnerability is to confidentiality. (CVE-2021-20239)

    A flaw leak of the file handle for parent directory in the Linux kernel's NFS3 functionality was found in     the way user calls READDIRPLUS. A local user could use this flaw to traverse to other parts of the file-     system than mounted sub-folder. (CVE-2021-3178)

    A flaw was found in the Linux kernel. A use-after-free memory flaw in the Fast Userspace Mutexes     functionality allowing a local user to crash the system or escalate their privileges on the system. The     highest threat from this vulnerability is to data confidentiality and integrity as well as system     availability. (CVE-2021-3347)

    A use after free flaw in the Linux kernel network block device (NBD) subsystem was found in the way user     calls an ioctl NBD_SET_SOCK at a certain point during device setup. (CVE-2021-3348)

    A remote denial of service vulnerability was found in the Linux kernel's TIPC kernel module. The while     loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue.
    Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system     to instantly spike to 100%, causing a denial of service condition. (CVE-2023-1390)

Tenable has extracted the preceding description block directly from the tested product 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 SP2 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).

CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).

CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).

CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).

CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).

CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).

CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).

CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).

CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).

CVE-2020-29373: Fixed an unsafe handling of the root directory during path lookups in fs/io_uring.c (bnc#1179434).

CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952).

CVE-2020-27830: Fixed a NULL pointer dereference in speakup (bsc#1179656).

CVE-2020-29370: Fixed a race condition in kmem_cache_alloc_bulk (bnc#1179435).

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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0197-1 advisory.

    The SUSE Linux Enterprise 15 SP2 LTSS kernel was updated to receive various security and bugfixes.

    The following security bugs were fixed:

    - CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local     privilege escalation (bsc#1194517).
    - CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).
    - CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux     kernel that occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared     memory object (bnc#1193767).
    - CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower     privileged ones that could lead to privilege escalation (bsc#1194302).
    - CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
    - CVE-2021-4202: Fixed a race condition during NFC device remove which could lead to a use-after-free     memory corruption (bsc#1194529)
    - CVE-2021-4083: A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix     domain socket file handlers in the way users call close() and fget() simultaneously and can potentially     trigger a race condition. This flaw allowed a local user to crash the system or escalate their privileges     on the system. (bnc#1193727).
    - CVE-2021-4149: Fixed a locking condition in btrfs which could lead to system deadlocks (bsc#1194001).
    - CVE-2021-45485: The IPv6 implementation in net/ipv6/output_core.c had an information leak because of     certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can     typically choose among many IPv6 source addresses (bnc#1194094).
    - CVE-2021-45486: The IPv4 implementation in net/ipv4/route.c had an information leak because the hash     table is very small (bnc#1194087).
    - CVE-2021-4001: A race condition was found in the Linux kernel's ebpf verifier between     bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a     local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space.
    (bnc#1192990).
    - CVE-2021-28715: Guest can force Linux netback driver to hog large amounts of kernel memory. Incoming     data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to     process them. There are some measures taken for avoiding to pile up too much data, but those can be     bypassed by the guest: There was a timeout how long the client side of an interface can stop consuming new     packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in     its RX queue ring page and the next package would require more than one free slot, which may be the case     when using GSO, XDP, or software hashing. ()
    - CVE-2021-28714: Guest can force Linux netback driver to hog large amounts of kernel memory. Incoming     data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to     process them. There are some measures taken for avoiding to pile up too much data, but those can be     bypassed by the guest: There was a timeout how long the client side of an interface can stop consuming new     packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in     its RX queue ring page and the next package would require more than one free slot, which may be the case     when using GSO, XDP, or software hashing (bnc#1193442).
    - CVE-2021-28713: Rogue backends can cause DoS of guests via high frequency events. Xen offers the ability     to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'. Running PV     backends in driver domains has one primary security advantage: if a driver domain gets compromised, it     doesn't have the privileges to take over the system. However, a malicious driver domain could try to     attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due     to trying to service interrupts for elongated amounts of time. (bsc#1193440)
    - CVE-2021-28712: Rogue backends can cause DoS of guests via high frequency events. Xen offers the ability     to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'. Running PV     backends in driver domains has one primary security advantage: if a driver domain gets compromised, it     doesn't have the privileges to take over the system. However, a malicious driver domain could try to     attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due     to trying to service interrupts for elongated amounts of time. (bsc#1193440)
    - CVE-2021-28711: Rogue backends can cause DoS of guests via high frequency events. Xen offers the ability     to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'. Running PV     backends in driver domains has one primary security advantage: if a driver domain gets compromised, it     doesn't have the privileges to take over the system. However, a malicious driver domain could try to     attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due     to trying to service interrupts for elongated amounts of time (bnc#1193440).
    - CVE-2020-27825: A use-after-free flaw was found in kernel/trace/ring_buffer.c. There was a race problem     in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service     problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel     information leak threat (bnc#1179960).
    - CVE-2021-43975: hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c     allowed an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted     length value (bnc#1192845).
    - CVE-2021-33098: Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version     3.17.3 may have allowed an authenticated user to potentially enable denial of service via local access     (bnc#1192877).
    - CVE-2021-43976: mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allowed an attacker (who     can connect a crafted USB device) to cause a denial of service (skb_over_panic) (bnc#1192847).
    - CVE-2021-4002: Incorrect TLBs flushing after huge_pmd_unshare could lead to exposing hugepages to other     users (bsc#1192946).
    - CVE-2020-27820: A use-after-frees in nouveau's postclose() handler could happen if removing device (that     is not common to remove video card physically without power-off, but same happens if 'unbind' the driver)     (bnc#1179599).


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

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

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

CVE-2019-19318, CVE-2019-19813, CVE-2019-19816

'Team bobfuzzer' reported bugs in Btrfs that could lead to a use-after-free or heap buffer overflow, and could be triggered by crafted filesystem images. A user permitted to mount and access arbitrary filesystems could use these to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-27815

A flaw was reported in the JFS filesystem code allowing a local attacker with the ability to set extended attributes to cause a denial of service.

CVE-2020-27825

Adam 'pi3' Zabrocki reported a use-after-free flaw in the ftrace ring buffer resizing logic due to a race condition, which could result in denial of service or information leak.

CVE-2020-28374

David Disseldorp discovered that the LIO SCSI target implementation performed insufficient checking in certain XCOPY requests. An attacker with access to a LUN and knowledge of Unit Serial Number assignments can take advantage of this flaw to read and write to any LIO backstore, regardless of the SCSI transport settings.

CVE-2020-29568 (XSA-349)

Michael Kurth and Pawel Wieczorkiewicz reported that frontends can trigger OOM in backends by updating a watched path.

CVE-2020-29569 (XSA-350)

Olivier Benjamin and Pawel Wieczorkiewicz reported a use-after-free flaw which can be triggered by a block frontend in Linux blkback. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend.

CVE-2020-29660

Jann Horn reported a locking inconsistency issue in the tty subsystem which may allow a local attacker to mount a read-after-free attack against TIOCGSID.

CVE-2020-29661

Jann Horn reported a locking issue in the tty subsystem which can result in a use-after-free. A local attacker can take advantage of this flaw for memory corruption or privilege escalation.

CVE-2020-36158

A buffer overflow flaw was discovered in the mwifiex WiFi driver which could result in denial of service or the execution of arbitrary code via a long SSID value.

CVE-2021-3178

&#x5434;&#x5F02; reported an information leak in the NFSv3 server.
When only a subdirectory of a filesystem volume is exported, an NFS client listing the exported directory would obtain a file handle to the parent directory, allowing it to access files that were not meant to be exported.

Even after this update, it is still possible for NFSv3 clients to guess valid file handles and access files outside an exported subdirectory, unless the 'subtree_check' export option is enabled. It is recommended that you do not use that option but only export whole filesystem volumes.

CVE-2021-3347

It was discovered that PI futexes have a kernel stack use-after-free during fault handling. An unprivileged user could use this flaw to crash the kernel (resulting in denial of service) or for privilege escalation.

CVE-2021-26930 (XSA-365)

Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H.
Sch&ouml;nherr discovered that the Xen block backend driver (xen-blkback) did not handle grant mapping errors correctly. A malicious guest could exploit this bug to cause a denial of service (crash), or possibly an information leak or privilege escalation, within the domain running the backend, which is typically dom0.

CVE-2021-26931 (XSA-362), CVE-2021-26932 (XSA-361), CVE-2021-28038 (XSA-367)

Jan Beulich discovered that the Xen support code and various Xen backend drivers did not handle grant mapping errors correctly. A malicious guest could exploit these bugs to cause a denial of service (crash) within the domain running the backend, which is typically dom0.

CVE-2021-27363

Adam Nichols reported that the iSCSI initiator subsystem did not properly restrict access to transport handle attributes in sysfs. On a system acting as an iSCSI initiator, this is an information leak to local users and makes it easier to exploit CVE-2021-27364.

CVE-2021-27364

Adam Nichols reported that the iSCSI initiator subsystem did not properly restrict access to its netlink management interface. On a system acting as an iSCSI initiator, a local user could use these to cause a denial of service (disconnection of storage) or possibly for privilege escalation.

CVE-2021-27365

Adam Nichols reported that the iSCSI initiator subsystem did not correctly limit the lengths of parameters or 'passthrough PDUs' sent through its netlink management interface. On a system acting as an iSCSI initiator, a local user could use these to leak the contents of kernel memory, to cause a denial of service (kernel memory corruption or crash), and probably for privilege escalation.

For Debian 9 stretch, these problems have been fixed in version 4.9.258-1.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux

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.

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

The following security bugs were fixed :

CVE-2018-20669: Fixed an improper check i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c (bsc#1122971).

CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed, aka CID-16d51a590a8c (bsc#1179663).

CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).

CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).

CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).

CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).

CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).

CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).

CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).

CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).

CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).

CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).

CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).

CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).

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.

This update syncs the RT kernel from the SUSE Linux Enterprise 15-SP2 codestream. This update was imported from the SUSE:SLE-15-SP2:Update update project.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003998 advisory.

    A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was     a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a     denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege     to a kernel information leak threat.

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001391 advisory.

    A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was     a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a     denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege     to a kernel information leak threat.

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

The following security bugs were fixed :

CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).

CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).

CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).

CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).

CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).

CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).

CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).

CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).

CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).

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
160427	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2022-020 (ALASKERNEL-5.4-2022-020)	Nessus	Amazon Linux Local Security Checks	2022/5/2	2026/6/11	high
144959	SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0108-1)	Nessus	SuSE Local Security Checks	2021/1/14	2023/2/9	critical
157144	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2022:0197-1)	Nessus	SuSE Local Security Checks	2022/1/27	2026/6/26	high
147532	Debian DLA-2586-1 : linux security update	Nessus	Debian Local Security Checks	2021/3/10	2024/1/16	high
144914	SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0098-1)	Nessus	SuSE Local Security Checks	2021/1/13	2023/2/9	critical
146282	openSUSE Security Update : RT kernel (openSUSE-2021-242)	Nessus	SuSE Local Security Checks	2021/2/8	2023/2/9	critical
288390	Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003998)	Nessus	Unity Linux Local Security Checks	2026/1/16	2026/1/17	medium
290427	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001391)	Nessus	Unity Linux Local Security Checks	2026/1/16	2026/1/16	medium
145320	openSUSE Security Update : the Linux Kernel (openSUSE-2021-60)	Nessus	SuSE Local Security Checks	2021/1/25	2023/2/9	critical
144908	SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0095-1)	Nessus	SuSE Local Security Checks	2021/1/13	2023/2/9	critical

検出

プラグインの検索

high

critical

high

high

critical

critical

medium

medium

critical

critical