Vulmon
Amazon Linux 2 Security Advisory: ALASKERNEL-5.4-2024-057
Advisory Release Date: 2024-01-03 23:00 Pacific
Advisory Updated Date: 2024-01-03 23:00 Pacific
An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg). (CVE-2023-6121)
A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation.
A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group().
We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (CVE-2023-6931)
A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation.
A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread.
We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 - Kernel-5.4 Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
"Run yum update kernel to update your system.
"
aarch64:
kernel-5.4.265-176.364.amzn2.aarch64
kernel-headers-5.4.265-176.364.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.4.265-176.364.amzn2.aarch64
perf-5.4.265-176.364.amzn2.aarch64
perf-debuginfo-5.4.265-176.364.amzn2.aarch64
python-perf-5.4.265-176.364.amzn2.aarch64
python-perf-debuginfo-5.4.265-176.364.amzn2.aarch64
kernel-tools-5.4.265-176.364.amzn2.aarch64
kernel-tools-devel-5.4.265-176.364.amzn2.aarch64
kernel-tools-debuginfo-5.4.265-176.364.amzn2.aarch64
bpftool-5.4.265-176.364.amzn2.aarch64
bpftool-debuginfo-5.4.265-176.364.amzn2.aarch64
kernel-devel-5.4.265-176.364.amzn2.aarch64
kernel-debuginfo-5.4.265-176.364.amzn2.aarch64
i686:
kernel-headers-5.4.265-176.364.amzn2.i686
src:
kernel-5.4.265-176.364.amzn2.src
x86_64:
kernel-5.4.265-176.364.amzn2.x86_64
kernel-headers-5.4.265-176.364.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.4.265-176.364.amzn2.x86_64
perf-5.4.265-176.364.amzn2.x86_64
perf-debuginfo-5.4.265-176.364.amzn2.x86_64
python-perf-5.4.265-176.364.amzn2.x86_64
python-perf-debuginfo-5.4.265-176.364.amzn2.x86_64
kernel-tools-5.4.265-176.364.amzn2.x86_64
kernel-tools-devel-5.4.265-176.364.amzn2.x86_64
kernel-tools-debuginfo-5.4.265-176.364.amzn2.x86_64
bpftool-5.4.265-176.364.amzn2.x86_64
bpftool-debuginfo-5.4.265-176.364.amzn2.x86_64
kernel-devel-5.4.265-176.364.amzn2.x86_64
kernel-debuginfo-5.4.265-176.364.amzn2.x86_64