Bug 2437248

Summary: CVE-2026-22801 libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API [fedora-43]
Product: [Fedora] Fedora Reporter: Sandipan Roy <saroy>
Component: libpngAssignee: Nikola Forró <nforro>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 43CC: mhlavink, nforro, phracek
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["22b55d7a-7574-45ba-b97a-f6d6cf32ce2f"]}
Fixed In Version: libpng-1.6.55-1.fc43 libpng-1.6.55-1.fc42 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-02-17 00:56:13 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: 2428824    

Description Sandipan Roy 2026-02-06 04:30:57 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 Fedora Update System 2026-02-13 20:47:47 UTC
FEDORA-2026-a9ae661fa2 (libpng-1.6.55-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a9ae661fa2

Comment 2 Fedora Update System 2026-02-13 20:47:50 UTC
FEDORA-2026-168ebcb4a8 (libpng-1.6.55-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-168ebcb4a8

Comment 3 Fedora Update System 2026-02-14 00:53:54 UTC
FEDORA-2026-168ebcb4a8 has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-168ebcb4a8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-168ebcb4a8

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-02-14 01:30:21 UTC
FEDORA-2026-a9ae661fa2 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-a9ae661fa2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a9ae661fa2

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-02-17 00:56:13 UTC
FEDORA-2026-a9ae661fa2 (libpng-1.6.55-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Fedora Update System 2026-02-18 00:56:22 UTC
FEDORA-2026-168ebcb4a8 (libpng-1.6.55-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.