Bug 2565042

Summary: CVE-2026-120244 qt6-qtwebengine: ffmpeg: Information disclosure via truncated PCX image [fedora-44]
Product: [Fedora] Fedora Reporter: Marian Rehak <mrehak>
Component: qt6-qtwebengineAssignee: Jan Grulich <jgrulich>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 44CC: jgrulich, kde-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["83817c04-41ec-479a-a257-c8e41c5270a7"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2564499    

Description Marian Rehak 2026-11-02 10:32:55 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.

FFmpeg 2.1 through 9.0.2 contains a use of uninitialized resource vulnerability in the PCX decoder that allows attackers to leak heap memory through truncated RLE scanlines. Attackers can craft a PCX image whose RLE data ends early, causing pcx_decode_frame() to copy uninitialized av_malloc() buffer contents into visible decoded pixels.