Amazon Linux 2023 Security Advisory: ALAS2023-2026-3259
Advisory Released Date: 2026-10-24
Advisory Updated Date: 2026-10-26
Severity:
Important
Issue Overview:
An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients. (CVE-2026-94286)
Affected Packages:
libXtst
Issue Correction:
Run dnf update libXtst --releasever 2023.12.20261026 or dnf update --advisory ALAS2023-2026-3259 --releasever 2023.12.20261026 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:
libXtst-1.2.5-1.amzn2023.0.2.aarch64
libXtst-debuginfo-1.2.5-1.amzn2023.0.2.aarch64
libXtst-debugsource-1.2.5-1.amzn2023.0.2.aarch64
libXtst-devel-1.2.5-1.amzn2023.0.2.aarch64
src:
libXtst-1.2.5-1.amzn2023.0.2.src
x86_64:
libXtst-debuginfo-1.2.5-1.amzn2023.0.2.x86_64
libXtst-debugsource-1.2.5-1.amzn2023.0.2.x86_64
libXtst-devel-1.2.5-1.amzn2023.0.2.x86_64
libXtst-1.2.5-1.amzn2023.0.2.x86_64