Bug 2525142
| Summary: | CVE-2026-81893 gdk-pixbuf2: gdk-pixbuf: invalid write in JPEG ICC profile parser on error recovery [fedora-all] | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Ganesh <gnaik> |
| Component: | gdk-pixbuf2 | Assignee: | Adrian Vovk <avovk> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | CC: | avovk, bgilbert, gnome-sig, mclasen |
| Target Milestone: | --- | Keywords: | Security, SecurityTracking |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | {"flaws": ["e225d413-be5e-40eb-a4ce-497704798fd8"]} | ||
| Fixed In Version: | gdk-pixbuf2-2.44.6^really2.44.4-3.fc44 gdk-pixbuf2-2.44.6^really2.44.4-3.fc43 gdk-pixbuf2-2.44.8-3.fc45 | Doc Type: | --- |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2026-09-02 01:34:23 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: | 2524834 | ||
FEDORA-2026-f55d6fc9f8 (gdk-pixbuf2-2.44.8-3.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-f55d6fc9f8 FEDORA-2026-cf5d926f46 (gdk-pixbuf2-2.44.6^really2.44.4-3.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-cf5d926f46 FEDORA-2026-001de57d4f (gdk-pixbuf2-2.44.6^really2.44.4-3.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-001de57d4f FEDORA-2026-001de57d4f (gdk-pixbuf2-2.44.6^really2.44.4-3.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-cf5d926f46 (gdk-pixbuf2-2.44.6^really2.44.4-3.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report. FEDORA-2026-f55d6fc9f8 (gdk-pixbuf2-2.44.8-3.fc45) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report. |
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.