Bug 2394075 (CVE-2025-9951)

Summary: CVE-2025-9951 FFmpeg: heap-based buffer overflow in jpeg2000dec
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: gtanzill, jbuscemi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in the jpeg2000dec decoder in FFmpeg. Processing a specially crafted JPEG 2000 image can cause a heap-based buffer overflow, resulting in a denial of service or other undefined behavior.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2394111, 2394112, 2394114, 2394116, 2394118, 2394120, 2394122    
Bug Blocks:    

Description OSIDB Bzimport 2025-09-09 14:01:38 UTC
A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.