Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-3898
Advisory Released Date: 2026-08-31
Advisory Updated Date: 2026-08-31
A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented RTP packet processing. A remote, unauthenticated attacker can send a continuous stream of RTP fragments without ever transmitting an end-of-fragment marker, causing the reassembly buffer to grow without bound until process memory is exhausted. This results in a denial of service through process termination. (CVE-2026-18649)
Affected Packages:
gstreamer-plugins-good
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update gstreamer-plugins-good or yum update --advisory ALAS2-2026-3898 to update your system.
aarch64:
gstreamer-plugins-good-0.10.31-20.amzn2.0.5.aarch64
gstreamer-plugins-good-debuginfo-0.10.31-20.amzn2.0.5.aarch64
i686:
gstreamer-plugins-good-0.10.31-20.amzn2.0.5.i686
gstreamer-plugins-good-debuginfo-0.10.31-20.amzn2.0.5.i686
noarch:
gstreamer-plugins-good-devel-docs-0.10.31-20.amzn2.0.5.noarch
src:
gstreamer-plugins-good-0.10.31-20.amzn2.0.5.src
x86_64:
gstreamer-plugins-good-0.10.31-20.amzn2.0.5.x86_64
gstreamer-plugins-good-debuginfo-0.10.31-20.amzn2.0.5.x86_64