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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, affecting all versions. When parsing a specially crafted ICO file with pixel values that exceed the defined palette range, an out-of-bounds read can occur due to improper bounds checking against the actual palette size. This issue causes heap bytes to be interpreted as valid palette indices and rendered as RGB pixel values in the output image, allowing an attacker to extract heap contents via the generated output, such as a thumbnail.
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle. Changing version to 45.
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
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
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.
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.
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.
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.
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.
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.