Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-18649: 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.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | gstreamer-plugins-good | 0:0.10.31-20.amzn2.0.5 |
| Amazon Linux · 2 | gstreamer-plugins-good-debuginfo | 0:0.10.31-20.amzn2.0.5 |
| Amazon Linux · 2 | gstreamer-plugins-good-devel-docs | 0:0.10.31-20.amzn2.0.5 |
Vulnerabilities 1
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High 7.5CVE-2026-18649 Public exploit
Gstreamer1-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay rtp depayloaders
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 attacke…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-18649.html