Amazon Linux 2023 Security Advisory: ALAS2023-2026-3423
Advisory Released Date: 2026-11-12
Advisory Updated Date: 2026-11-12
Severity:
Medium
Issue Overview:
A flaw was found in GStreamer's gst-plugins-base MicroDVD subtitle parser. When processing a specially crafted subtitle file, the parser may dereference a NULL pointer, causing the application to crash when a user opens or plays media with a malformed MicroDVD (.sub) subtitle file. (CVE-2026-119842)
Affected Packages:
gstreamer1-plugins-base
Issue Correction:
Run dnf update gstreamer1-plugins-base --releasever 2023.12.20261112 or dnf update --advisory ALAS2023-2026-3423 --releasever 2023.12.20261112 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:
gstreamer1-plugins-base-tools-debuginfo-1.24.10-1.amzn2023.0.7.aarch64
gstreamer1-plugins-base-tools-1.24.10-1.amzn2023.0.7.aarch64
gstreamer1-plugins-base-debuginfo-1.24.10-1.amzn2023.0.7.aarch64
gstreamer1-plugins-base-devel-1.24.10-1.amzn2023.0.7.aarch64
gstreamer1-plugins-base-debugsource-1.24.10-1.amzn2023.0.7.aarch64
gstreamer1-plugins-base-1.24.10-1.amzn2023.0.7.aarch64
src:
gstreamer1-plugins-base-1.24.10-1.amzn2023.0.7.src
x86_64:
gstreamer1-plugins-base-tools-debuginfo-1.24.10-1.amzn2023.0.7.x86_64
gstreamer1-plugins-base-debuginfo-1.24.10-1.amzn2023.0.7.x86_64
gstreamer1-plugins-base-debugsource-1.24.10-1.amzn2023.0.7.x86_64
gstreamer1-plugins-base-tools-1.24.10-1.amzn2023.0.7.x86_64
gstreamer1-plugins-base-devel-1.24.10-1.amzn2023.0.7.x86_64
gstreamer1-plugins-base-1.24.10-1.amzn2023.0.7.x86_64