Amazon Linux 1 Security Advisory: ALAS-2023-1883
Advisory Release Date: 2023-11-10 17:32 Pacific
Advisory Updated Date: 2024-04-11 01:43 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
2024-04-11: CVE-2023-42754 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)
A flaw in the kernel Xen event handler can cause a deadlock with Xen console handling in unprivileged Xen guests. (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)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system.
i686:
kernel-devel-4.14.328-174.540.amzn1.i686
kernel-tools-debuginfo-4.14.328-174.540.amzn1.i686
kernel-debuginfo-4.14.328-174.540.amzn1.i686
kernel-headers-4.14.328-174.540.amzn1.i686
kernel-debuginfo-common-i686-4.14.328-174.540.amzn1.i686
kernel-4.14.328-174.540.amzn1.i686
perf-4.14.328-174.540.amzn1.i686
kernel-tools-4.14.328-174.540.amzn1.i686
perf-debuginfo-4.14.328-174.540.amzn1.i686
kernel-tools-devel-4.14.328-174.540.amzn1.i686
src:
kernel-4.14.328-174.540.amzn1.src
x86_64:
kernel-debuginfo-4.14.328-174.540.amzn1.x86_64
kernel-tools-devel-4.14.328-174.540.amzn1.x86_64
kernel-tools-4.14.328-174.540.amzn1.x86_64
kernel-4.14.328-174.540.amzn1.x86_64
perf-4.14.328-174.540.amzn1.x86_64
kernel-debuginfo-common-x86_64-4.14.328-174.540.amzn1.x86_64
perf-debuginfo-4.14.328-174.540.amzn1.x86_64
kernel-tools-debuginfo-4.14.328-174.540.amzn1.x86_64
kernel-headers-4.14.328-174.540.amzn1.x86_64
kernel-devel-4.14.328-174.540.amzn1.x86_64