vulnerability

Amazon Linux AMI 2: CVE-2023-3777: Security patch for kernel, kernel-livepatch-5.10.186-179.751 (Multiple Advisories)

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Severity

CVSS

(AV:L/AC:L/Au:S/C:C/I:C/A:C)

Published

Sep 6, 2023

Added

Sep 21, 2023

Modified

May 20, 2026

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances.

We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.

Solutions

amazon-linux-ami-2-upgrade-bpftoolamazon-linux-ami-2-upgrade-bpftool-debuginfoamazon-linux-ami-2-upgrade-kernelamazon-linux-ami-2-upgrade-kernel-debuginfoamazon-linux-ami-2-upgrade-kernel-debuginfo-common-aarch64amazon-linux-ami-2-upgrade-kernel-debuginfo-common-x86_64amazon-linux-ami-2-upgrade-kernel-develamazon-linux-ami-2-upgrade-kernel-headersamazon-linux-ami-2-upgrade-kernel-livepatch-5-10-186-179-751amazon-linux-ami-2-upgrade-kernel-livepatch-5-10-186-179-751-debuginfoamazon-linux-ami-2-upgrade-kernel-livepatch-5-10-192-182-736amazon-linux-ami-2-upgrade-kernel-livepatch-5-15-128-80-144amazon-linux-ami-2-upgrade-kernel-toolsamazon-linux-ami-2-upgrade-kernel-tools-debuginfoamazon-linux-ami-2-upgrade-kernel-tools-develamazon-linux-ami-2-upgrade-perfamazon-linux-ami-2-upgrade-perf-debuginfoamazon-linux-ami-2-upgrade-python-perfamazon-linux-ami-2-upgrade-python-perf-debuginfo

References

Rapid7 Labs

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