Bug 2565732

Summary: CVE-2026-121259 gstreamer1-plugins-bad-free: gst-plugins-bad: integer overflows and division by zero in JPEG 2000 decimator [fedora-43]
Product: [Fedora] Fedora Reporter: lcelant
Component: gstreamer1-plugins-bad-freeAssignee: Yaakov Selkowitz <yselkowi>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: dominik, gwync, multimedia-sig, negativo17, wtaymans, yselkowi
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["bc72799b-7072-4861-9636-553f163d5062"]}
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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:    
Bug Blocks: 2565686    

Description lcelant 2026-11-03 11:42:33 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

GStreamer-SA-2026-0015 reports integer overflows and division by zero in the jp2kdecimator element of gst-plugins-bad when it processes malformed JPEG 2000 codestreams. Insufficient bounds checks in size validation and tile configuration parsing permit multiplication overflows and a zero tile dimension to reach division. A crafted JPEG 2000 stream or media file can crash the GStreamer application, causing denial of service. Upstream identifies gst-plugins-bad versions before 1.28.2 as affected and 1.28.2 as the fixed release. The advisory was published on 2026-04-07 and does not identify the original reporter or supply a public proof of concept. This record is based on the upstream advisory and release notes; no independent source review or dynamic reproduction has been completed. Advisory: https://gstreamer.freedesktop.org/security/sa-2026-0015.html