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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. GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signed integer arithmetic; for sufficiently large values, the result wraps to a negative number, bypassing the bounds check and causing the pixel reader to access heap memory past the end of the allocated buffer. The over-read contents are interpreted as pixel color values and rendered on screen.
Patch at https://debbugs.gnu.org/cgi/bugreport.cgi?bug=81344#37
FEDORA-2026-8894da1406 (emacs-30.2-10.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-8894da1406
FEDORA-2026-60eff202e7 (emacs-30.2-28.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-60eff202e7
FEDORA-2026-8894da1406 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-2026-8894da1406` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-8894da1406 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-60eff202e7 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-2026-60eff202e7` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-60eff202e7 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-60eff202e7 (emacs-30.2-28.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-8894da1406 (emacs-30.2-10.fc43) has been pushed to the Fedora 43 stable repository. If problem still persists, please make note of it in this bug report.