Fedora Account System
Red Hat Associate
Red Hat Customer
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. libcupsfilters through 2.1.1 contains a denial-of-service flaw in cfIEEE1284NormalizeMakeModel() in cupsfilters/ieee1284.c. When processing an IEEE-1284 device ID with an empty MDL field, modelptr equals buffer after copying zero model characters, causing the dedup loop at line 1122 to call strncasecmp(buffer, modelptr, 0) which always returns 0 and move_right_part(buffer, bufsize, modelptr, 0) which makes no progress. The loop never terminates and pins one CPU core indefinitely. The function is reachable over the network via cfIEEE1284GetMakeModel() called by cups-browsed on printer-advertised device IDs (IPP/DNS-SD). CWE-835. No upstream fix; PR #139 / commit 7c45e5f addresses an adjacent OOB-read only.
FEDORA-2026-1ed9130cea (libcupsfilters-2.1.1-9.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-1ed9130cea
FEDORA-2026-1ed9130cea 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-2026-1ed9130cea` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-1ed9130cea See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-eaf051d6fa (libcupsfilters-2.1.1-9.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-eaf051d6fa
FEDORA-2026-f77201a75e (libcupsfilters-2.1.1-9.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-f77201a75e
FEDORA-2026-4acc8aafb3 (libcupsfilters-2.2.0-1.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-4acc8aafb3
FEDORA-2026-1ed9130cea (libcupsfilters-2.1.1-9.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-f77201a75e 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-f77201a75e` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-f77201a75e See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-31aeb83b8c (libcupsfilters-2.2.1-1.fc46) has been submitted as an update to Fedora 46. https://bodhi.fedoraproject.org/updates/FEDORA-2026-31aeb83b8c
FEDORA-2026-d0c531d75b (libcupsfilters-2.2.1-1.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-d0c531d75b
FEDORA-2026-31aeb83b8c (libcupsfilters-2.2.1-1.fc46) has been pushed to the Fedora 46 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2026-d0c531d75b (libcupsfilters-2.2.1-1.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-f77201a75e (libcupsfilters-2.1.1-9.fc44) has been pushed to the Fedora 44 stable repository. If problem still persists, please make note of it in this bug report.