Homepage

Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package gstreamer1-plugins-ugly-free-devel  (opens in a new tab)

Threat Intelligence

EPSS
0.25% (16th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL7-GSTREAMER1PLUGINSUGLYFREEDEVEL-17346053
  • published16 Jun 2026
  • disclosed12 Jun 2026
Report a new vulnerability Found a mistake?

Introduced: 12 Jun 2026

CVE-2026-53703  (opens in a new tab)
CWE-125  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gstreamer1-plugins-ugly-free-devel package and not the gstreamer1-plugins-ugly-free-devel package as distributed by RHEL.

A vulnerability was found in the GStreamer RealMedia demuxer (gst-plugins-ugly). When processing a RealMedia (.rm) file, the demuxer parses MDPR (media properties) chunks to configure audio streams. For audio stream header versions 4 and 5, the parser reads fields such as codec type, packet size, sample rate, channel count, and extra codec data length from fixed offsets within the chunk without first checking that the chunk contains enough data. If a malicious file provides an MDPR chunk that is too small to contain a complete audio stream header, the parser reads beyond the end of the buffer. This can cause the application to crash. In some cases, bytes read past the buffer boundary may be incorporated into stream metadata, which could result in limited information disclosure.