Bug 2569127 (CVE-2026-125707)

Summary: CVE-2026-125707 gst-plugins-bad: gst-plugins-bad: off-by-one write in MXF demuxer temporal offset table
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 MXF demuxer. When an application processes a crafted MXF file, an off-by-one bounds check can allow a one-byte write past the logical end of a temporal offset array. This may corrupt memory and cause the application to crash. The extent of the impact has not been demonstrated by a runtime test.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2569391, 2569392    
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Description OSIDB Bzimport 2026-11-09 12:56:04 UTC
GStreamer-SA-2026-0027 (CVE-2026-XXXX pending): An off-by-one bounds check in mxfdemux uses a greater-than comparison instead of greater-than-or-equal when validating array access for reverse temporal offsets. A crafted MXF file can cause a one-element out-of-bounds read, potentially resulting in a crash, denial of service, or information disclosure. Fixed in gst-plugins-bad 1.28.3.