Bug 2525141 - CVE-2026-81893 mingw-gdk-pixbuf: gdk-pixbuf: invalid write in JPEG ICC profile parser on error recovery [fedora-all]
Summary: CVE-2026-81893 mingw-gdk-pixbuf: gdk-pixbuf: invalid write in JPEG ICC profil...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: mingw-gdk-pixbuf
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Kalev Lember
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["e225d413-be5e-40eb-a4ce-4...
Depends On:
Blocks: CVE-2026-81893
TreeView+ depends on / blocked
 
Reported: 2026-08-27 18:13 UTC by Ganesh
Modified: 2026-09-25 01:12 UTC (History)
4 users (show)

Fixed In Version: mingw-gdk-pixbuf-2.44.8-2.fc45 mingw-gdk-pixbuf-2.44.8-2.fc43 mingw-gdk-pixbuf-2.44.8-2.fc44
Clone Of:
Environment:
Last Closed: 2026-09-25 00:17:23 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Ganesh 2026-08-27 18:13:36 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 gdk-pixbuf's JPEG loader (io-jpeg.c). When parsing chunked ICC profile data from JPEG APP2 markers, the error cleanup path in jpeg_parse_exif_app2_segment() frees the ICC profile buffer but previously failed to reset icc_profile_size and icc_profile_size_allocated. A specially crafted JPEG can trigger allocation, an error that frees the buffer while leaving stale size metadata, and a subsequent re-allocation that leads to an out-of-bounds write during ICC profile assembly.

The issue was introduced when error cleanup was added for chunked ICC profile handling in gdk-pixbuf 2.43.4/2.44.0 (commit 4af78023). It is fixed upstream in commit efe658674bd103d1c9bf50809d5767a3f6dd5a01 ("jpeg: When freeing memory, unset the size"), merged via https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/278 on 2026-08-24. No fixed upstream release tag exists yet.

Red Hat tracking: PSIRTSUPT-22558.

Comment 1 Fedora Update System 2026-09-16 07:20:31 UTC
FEDORA-2026-4e6575b35f (mingw-gdk-pixbuf-2.44.8-2.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-4e6575b35f

Comment 2 Fedora Update System 2026-09-16 07:20:33 UTC
FEDORA-2026-26573b6029 (mingw-gdk-pixbuf-2.44.8-2.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-26573b6029

Comment 3 Fedora Update System 2026-09-16 07:20:36 UTC
FEDORA-2026-16f1152378 (mingw-gdk-pixbuf-2.44.8-2.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-16f1152378

Comment 4 Fedora Update System 2026-09-17 01:34:02 UTC
FEDORA-2026-26573b6029 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-26573b6029`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-26573b6029

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

Comment 5 Fedora Update System 2026-09-17 18:14:18 UTC
FEDORA-2026-16f1152378 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-2026-16f1152378`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-16f1152378

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

Comment 6 Fedora Update System 2026-09-17 18:38:38 UTC
FEDORA-2026-4e6575b35f 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-2026-4e6575b35f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-4e6575b35f

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

Comment 7 Fedora Update System 2026-09-25 00:17:23 UTC
FEDORA-2026-26573b6029 (mingw-gdk-pixbuf-2.44.8-2.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Fedora Update System 2026-09-25 00:55:48 UTC
FEDORA-2026-4e6575b35f (mingw-gdk-pixbuf-2.44.8-2.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 9 Fedora Update System 2026-09-25 01:12:52 UTC
FEDORA-2026-16f1152378 (mingw-gdk-pixbuf-2.44.8-2.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.


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