A race condition occurred between the functions lmLogClose and txEnd in JFS, in the Linux Kernel, executed in different threads. This flaw allows a local attacker with normal user privileges to crash the system or leak internal kernel information.

The version of kernel installed on the remote host is prior to 4.14.328-174.540. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1883 advisory.

  - A race condition occurred between the functions lmLogClose and txEnd in JFS, in the Linux Kernel, executed     in different threads. This flaw allows a local attacker with normal user privileges to crash the system or     leak internal kernel information. (CVE-2023-3397)

  - Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is     being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt     in an unprivileged guest. The closing of an event channel is e.g. triggered by removal of a paravirtual     device on the other side. As this action will cause console messages to be issued on the other side quite     often, the chance of triggering the deadlock is not neglectable. Note that 32-bit Arm-guests are not     affected, as the 32-bit Linux kernel on Arm doesn't use queued-RW-locks, which are required to trigger the     issue (on Arm32 a waiting writer doesn't block further readers to get the lock). (CVE-2023-34324)

  - A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was     assumed to be associated with a device before calling __ip_options_compile, which is not always the case     if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash     the system. (CVE-2023-42754)

  - A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)     component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an     event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory     locations outside of the allocated buffer. We recommend upgrading past commit     32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

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

The version of kernel installed on the remote host is prior to 5.10.199-190.747. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-043 advisory.

    2024-07-03: CVE-2023-52504 was added to this advisory.

    2024-06-06: CVE-2023-52477 was added to this advisory.

    A race condition between two functions, lmLogClose() and txEnd(), in the Linux kernel's JFS filesystem can     lead to a use-after-free vulnerability and crash. (CVE-2023-3397)

    An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access     to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES     emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege     escalation). This depends on a race condition through which userspace can replace an instruction before     the #VC handler reads it. (CVE-2023-46813)

    In the Linux kernel, the following vulnerability has been resolved:

    usb: hub: Guard against accesses to uninitialized BOS descriptors (CVE-2023-52477)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/alternatives: Disable KASAN in apply_alternatives() (CVE-2023-52504)

    A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)     component can be exploited to achieve local privilege escalation.

    If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it     can increment or write to memory locations outside of the allocated buffer.

    We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

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 version of kernel installed on the remote host is prior to 5.4.259-173.361. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-056 advisory.

    2024-06-06: CVE-2023-52477 was added to this advisory.

    A race condition between two functions, lmLogClose() and txEnd(), in the Linux kernel's JFS filesystem can     lead to a use-after-free vulnerability and crash. (CVE-2023-3397)

    In the Linux kernel, the following vulnerability has been resolved:

    usb: hub: Guard against accesses to uninitialized BOS descriptors (CVE-2023-52477)

    A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)     component can be exploited to achieve local privilege escalation.

    If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it     can increment or write to memory locations outside of the allocated buffer.

    We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

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 version of kernel installed on the remote host is prior to 4.14.328-248.540. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2340 advisory.

    2024-06-06: CVE-2023-52477 was added to this advisory.

    A race condition between two functions, lmLogClose() and txEnd(), in the Linux kernel's JFS filesystem can     lead to a use-after-free vulnerability and crash. (CVE-2023-3397)

    In the Linux kernel, the following vulnerability has been resolved:

    usb: hub: Guard against accesses to uninitialized BOS descriptors (CVE-2023-52477)

    A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)     component can be exploited to achieve local privilege escalation.

    If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it     can increment or write to memory locations outside of the allocated buffer.

    We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

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.

ID	Name	Product	Family	Severity
193225	Amazon Linux AMI : kernel (ALAS-2023-1883)	Nessus	Amazon Linux Local Security Checks	high
185929	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2023-043)	Nessus	Amazon Linux Local Security Checks	high
185925	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2023-056)	Nessus	Amazon Linux Local Security Checks	high
185790	Amazon Linux 2 : kernel (ALAS-2023-2340)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2023-3397

medium

Tenable Plugins

high

high

high

high