Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package gstreamer1-plugins-ugly-free-devel (opens in a new tab)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
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-GSTREAMER1PLUGINSUGLYFREEDEVEL-17346057
- published16 Jun 2026
- disclosed12 Jun 2026
Introduced: 12 Jun 2026
CVE-2026-53704 (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 flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.