Amazon Linux 2 Security Advisory: ALAS-2023-2050
Advisory Release Date: 2023-05-25 17:41 Pacific
Advisory Updated Date: 2023-06-01 23:37 Pacific
Severity:
Important
Issue Overview:
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled. (CVE-2023-32233)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system.
New Packages:
aarch64:
kernel-4.14.314-238.539.amzn2.aarch64
kernel-headers-4.14.314-238.539.amzn2.aarch64
kernel-debuginfo-common-aarch64-4.14.314-238.539.amzn2.aarch64
perf-4.14.314-238.539.amzn2.aarch64
perf-debuginfo-4.14.314-238.539.amzn2.aarch64
python-perf-4.14.314-238.539.amzn2.aarch64
python-perf-debuginfo-4.14.314-238.539.amzn2.aarch64
kernel-tools-4.14.314-238.539.amzn2.aarch64
kernel-tools-devel-4.14.314-238.539.amzn2.aarch64
kernel-tools-debuginfo-4.14.314-238.539.amzn2.aarch64
kernel-devel-4.14.314-238.539.amzn2.aarch64
kernel-debuginfo-4.14.314-238.539.amzn2.aarch64
i686:
kernel-headers-4.14.314-238.539.amzn2.i686
src:
kernel-4.14.314-238.539.amzn2.src
x86_64:
kernel-4.14.314-238.539.amzn2.x86_64
kernel-headers-4.14.314-238.539.amzn2.x86_64
kernel-debuginfo-common-x86_64-4.14.314-238.539.amzn2.x86_64
perf-4.14.314-238.539.amzn2.x86_64
perf-debuginfo-4.14.314-238.539.amzn2.x86_64
python-perf-4.14.314-238.539.amzn2.x86_64
python-perf-debuginfo-4.14.314-238.539.amzn2.x86_64
kernel-tools-4.14.314-238.539.amzn2.x86_64
kernel-tools-devel-4.14.314-238.539.amzn2.x86_64
kernel-tools-debuginfo-4.14.314-238.539.amzn2.x86_64
kernel-devel-4.14.314-238.539.amzn2.x86_64
kernel-debuginfo-4.14.314-238.539.amzn2.x86_64
kernel-livepatch-4.14.314-238.539-1.0-0.amzn2.x86_64