Amazon Linux 2023 Security Advisory: ALAS2023-2026-3179
Advisory Released Date: 2026-10-12
Advisory Updated Date: 2026-10-12
Severity:
Important
Issue Overview:
A malicious X server could exploit a buffer overflow in libX11 before 1.8.14 during handling of XkbGetMap overflowing the key_sym_map. (CVE-2026-88806)
Affected Packages:
libX11
Issue Correction:
Run dnf update libX11 --releasever 2023.12.20261012 or dnf update --advisory ALAS2023-2026-3179 --releasever 2023.12.20261012 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:
libX11-debuginfo-1.8.10-2.amzn2023.0.2.aarch64
libX11-xcb-debuginfo-1.8.10-2.amzn2023.0.2.aarch64
libX11-xcb-1.8.10-2.amzn2023.0.2.aarch64
libX11-1.8.10-2.amzn2023.0.2.aarch64
libX11-debugsource-1.8.10-2.amzn2023.0.2.aarch64
libX11-devel-1.8.10-2.amzn2023.0.2.aarch64
noarch:
libX11-common-1.8.10-2.amzn2023.0.2.noarch
src:
libX11-1.8.10-2.amzn2023.0.2.src
x86_64:
libX11-xcb-1.8.10-2.amzn2023.0.2.x86_64
libX11-1.8.10-2.amzn2023.0.2.x86_64
libX11-xcb-debuginfo-1.8.10-2.amzn2023.0.2.x86_64
libX11-debuginfo-1.8.10-2.amzn2023.0.2.x86_64
libX11-debugsource-1.8.10-2.amzn2023.0.2.x86_64
libX11-devel-1.8.10-2.amzn2023.0.2.x86_64