Bug 2533198

Summary: CVE-2026-9672 php: buffer overflow when processing specially crafted GIF file [fedora-all]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: phpAssignee: Remi Collet <fedora>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: fedora, jorton
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["1456ac85-a745-403c-b262-8b9dbefa3c12"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-09-16 08:23:05 UTC 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: 2533111    

Description Guilherme de Almeida Suckevicz 2026-09-14 17:02:26 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.

A flaw was found in libgd. Processing a specially crafted GIF file allows a remote attacker to trigger a buffer overflow, resulting in an application crash and a denial of service. Arbitrary code execution is possible in theory, but considered highly unlikely because standard image decompression and pixel manipulation generally destroy the exploit payload.
Comment 1 Remi Collet 2026-09-16 08:23:05 UTC 
php use system libgd