Vulmon
Amazon Linux 2 Security Advisory: ALASKERNEL-5.15-2024-035
Advisory Release Date: 2024-01-19 02:20 Pacific
Advisory Updated Date: 2024-01-19 02:20 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur. (CVE-2023-46862)
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 null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service. (CVE-2023-6622)
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
The function nft_pipapo_walk did not skip inactive elements during set walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-after-free.
We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a. (CVE-2023-6817)
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-5.15 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-5.15.145-94.156.amzn2.aarch64
kernel-headers-5.15.145-94.156.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.15.145-94.156.amzn2.aarch64
perf-5.15.145-94.156.amzn2.aarch64
perf-debuginfo-5.15.145-94.156.amzn2.aarch64
python-perf-5.15.145-94.156.amzn2.aarch64
python-perf-debuginfo-5.15.145-94.156.amzn2.aarch64
kernel-tools-5.15.145-94.156.amzn2.aarch64
kernel-tools-devel-5.15.145-94.156.amzn2.aarch64
kernel-tools-debuginfo-5.15.145-94.156.amzn2.aarch64
bpftool-5.15.145-94.156.amzn2.aarch64
bpftool-debuginfo-5.15.145-94.156.amzn2.aarch64
kernel-devel-5.15.145-94.156.amzn2.aarch64
kernel-debuginfo-5.15.145-94.156.amzn2.aarch64
kernel-livepatch-5.15.145-94.156-1.0-0.amzn2.aarch64
i686:
kernel-headers-5.15.145-94.156.amzn2.i686
src:
kernel-5.15.145-94.156.amzn2.src
x86_64:
kernel-5.15.145-94.156.amzn2.x86_64
kernel-headers-5.15.145-94.156.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.15.145-94.156.amzn2.x86_64
perf-5.15.145-94.156.amzn2.x86_64
perf-debuginfo-5.15.145-94.156.amzn2.x86_64
python-perf-5.15.145-94.156.amzn2.x86_64
python-perf-debuginfo-5.15.145-94.156.amzn2.x86_64
kernel-tools-5.15.145-94.156.amzn2.x86_64
kernel-tools-devel-5.15.145-94.156.amzn2.x86_64
kernel-tools-debuginfo-5.15.145-94.156.amzn2.x86_64
bpftool-5.15.145-94.156.amzn2.x86_64
bpftool-debuginfo-5.15.145-94.156.amzn2.x86_64
kernel-devel-5.15.145-94.156.amzn2.x86_64
kernel-debuginfo-5.15.145-94.156.amzn2.x86_64
kernel-livepatch-5.15.145-94.156-1.0-0.amzn2.x86_64