Bug 2569125 (CVE-2026-125706)

Summary: CVE-2026-125706 gst-plugins-bad: gst-plugins-bad: missing bounds checks in MPEG PS PES header parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in GStreamer's gst-plugins-bad MPEG Program Stream demuxer and resindvd DVD-playback plugin. The PES header parsers do not adequately check remaining data before reading timestamps and optional header fields. Opening a specially crafted MPEG Program Stream file can cause an out-of-bounds read and potentially crash the application, resulting in a denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2569393, 2569394    
Bug Blocks:    

Description OSIDB Bzimport 2026-11-09 12:55:56 UTC
GStreamer-SA-2026-0024: Malformed MPEG Program Stream files can trigger out-of-bounds reads in the mpegdemux element and resindvd PES filter. The issues include missing bounds checks for DTS/PTS timestamps and PES extension fields, insufficient validation while scanning timestamps, and possible integer overflows in length calculations. Impact may include crashes, denial of service, and information disclosure. Fixed in gst-plugins-bad 1.28.3.