Amazon Linux 2023 Security Advisory: ALAS2023-2026-1546
Advisory Released Date: 2026-04-13
Advisory Updated Date: 2026-04-13
Severity:
Medium
Issue Overview:
A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system. (CVE-2026-4897)
Affected Packages:
polkit
Issue Correction:
Run dnf update polkit --releasever 2023.11.20260413 or dnf update --advisory ALAS2023-2026-1546 --releasever 2023.11.20260413 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
polkit-libs-debuginfo-125-1.amzn2023.0.3.aarch64
polkit-libs-125-1.amzn2023.0.3.aarch64
polkit-debuginfo-125-1.amzn2023.0.3.aarch64
polkit-devel-125-1.amzn2023.0.3.aarch64
polkit-debugsource-125-1.amzn2023.0.3.aarch64
polkit-125-1.amzn2023.0.3.aarch64
noarch:
polkit-docs-125-1.amzn2023.0.3.noarch
src:
polkit-125-1.amzn2023.0.3.src
x86_64:
polkit-libs-debuginfo-125-1.amzn2023.0.3.x86_64
polkit-debuginfo-125-1.amzn2023.0.3.x86_64
polkit-libs-125-1.amzn2023.0.3.x86_64
polkit-debugsource-125-1.amzn2023.0.3.x86_64
polkit-devel-125-1.amzn2023.0.3.x86_64
polkit-125-1.amzn2023.0.3.x86_64