Bug 2476569

Summary: CVE-2026-42144 CImg: integer overflow in PNM size check bypasses memory guard (_load_pnm) [fedora-all]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: CImgAssignee: Christopher Meng <i>
Status: MODIFIED --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: berrange, cheese, i
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["1c40b563-5138-4b28-981c-702341accaa3"]}
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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: 2466496    

Description Guilherme de Almeida Suckevicz 2026-05-12 17:58:03 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.
Comment 1 josef radinger 2026-05-20 06:43:31 UTC 
upstream ticket:
https://github.com/GreycLab/CImg/issues/481
Comment 2 Fedora Update System 2026-05-20 09:31:40 UTC 
FEDORA-2026-86596f9cbc (CImg-3.7.6-2.fc43 and gmic-3.7.6-3.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-86596f9cbc