Amazon Linux 2 Security Advisory: ALAS2KERNEL-5.4-2022-035
Advisory Released Date: 2022-09-12
Advisory Updated Date: 2025-07-29
FAQs regarding Amazon Linux ALAS/CVE Severity
An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462)
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted. (CVE-2022-2586)
A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local user to crash the system and possibly lead to a local privilege escalation problem. (CVE-2022-2588)
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: do not allow SET_ID to refer to another table (CVE-2022-50213)
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 or yum update --advisory ALAS2KERNEL-5.4-2022-035 to update your system.
aarch64:
kernel-5.4.209-116.367.amzn2.aarch64
kernel-headers-5.4.209-116.367.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.4.209-116.367.amzn2.aarch64
perf-5.4.209-116.367.amzn2.aarch64
perf-debuginfo-5.4.209-116.367.amzn2.aarch64
python-perf-5.4.209-116.367.amzn2.aarch64
python-perf-debuginfo-5.4.209-116.367.amzn2.aarch64
kernel-tools-5.4.209-116.367.amzn2.aarch64
kernel-tools-devel-5.4.209-116.367.amzn2.aarch64
kernel-tools-debuginfo-5.4.209-116.367.amzn2.aarch64
bpftool-5.4.209-116.367.amzn2.aarch64
bpftool-debuginfo-5.4.209-116.367.amzn2.aarch64
kernel-devel-5.4.209-116.367.amzn2.aarch64
kernel-debuginfo-5.4.209-116.367.amzn2.aarch64
i686:
kernel-headers-5.4.209-116.367.amzn2.i686
src:
kernel-5.4.209-116.367.amzn2.src
x86_64:
kernel-5.4.209-116.367.amzn2.x86_64
kernel-headers-5.4.209-116.367.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.4.209-116.367.amzn2.x86_64
perf-5.4.209-116.367.amzn2.x86_64
perf-debuginfo-5.4.209-116.367.amzn2.x86_64
python-perf-5.4.209-116.367.amzn2.x86_64
python-perf-debuginfo-5.4.209-116.367.amzn2.x86_64
kernel-tools-5.4.209-116.367.amzn2.x86_64
kernel-tools-devel-5.4.209-116.367.amzn2.x86_64
kernel-tools-debuginfo-5.4.209-116.367.amzn2.x86_64
bpftool-5.4.209-116.367.amzn2.x86_64
bpftool-debuginfo-5.4.209-116.367.amzn2.x86_64
kernel-devel-5.4.209-116.367.amzn2.x86_64
kernel-debuginfo-5.4.209-116.367.amzn2.x86_64
2025-07-29: CVE-2022-50213 was added to this advisory.