Bug 2438682 - CVE-2026-25646 libpng12: LIBPNG has a heap buffer overflow in png_set_quantize [fedora-43]
Summary: CVE-2026-25646 libpng12: LIBPNG has a heap buffer overflow in png_set_quantiz...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: libpng12
Version: 43
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Michal Hlavinka
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["8a67ee5b-874a-49c3-aeec-d...
Depends On:
Blocks: CVE-2026-25646
TreeView+ depends on / blocked
 
Reported: 2026-02-10 19:33 UTC by Jon Moroney
Modified: 2026-04-10 01:10 UTC (History)
4 users (show)

Fixed In Version: libpng12-1.2.57-25.fc43 libpng12-1.2.57-25.fc42
Clone Of:
Environment:
Last Closed: 2026-04-10 00:59:45 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Jon Moroney 2026-02-10 19:33:20 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 2026-04-01 08:42:59 UTC
FEDORA-2026-0192882589 (libpng12-1.2.57-25.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-0192882589

Comment 2 Fedora Update System 2026-04-01 08:43:01 UTC
FEDORA-2026-1bf9e14627 (libpng12-1.2.57-25.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1bf9e14627

Comment 3 Fedora Update System 2026-04-02 01:28:04 UTC
FEDORA-2026-3adf4e38cb has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3adf4e38cb`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3adf4e38cb

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

Comment 4 Fedora Update System 2026-04-02 01:43:44 UTC
FEDORA-2026-0192882589 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-2026-0192882589`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-0192882589

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

Comment 5 Fedora Update System 2026-04-02 02:08:46 UTC
FEDORA-2026-1bf9e14627 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-2026-1bf9e14627`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1bf9e14627

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

Comment 6 Fedora Update System 2026-04-10 00:59:45 UTC
FEDORA-2026-0192882589 (libpng12-1.2.57-25.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 7 Fedora Update System 2026-04-10 01:10:46 UTC
FEDORA-2026-1bf9e14627 (libpng12-1.2.57-25.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.


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