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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. libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures.
FEDORA-2026-4401b94ad0 (libpcap-1.10.7-1.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-4401b94ad0
FEDORA-2026-c3fb234b87 (libpcap-1.10.7-1.fc45) has been submitted as an update to Fedora 45. https://bodhi.fedoraproject.org/updates/FEDORA-2026-c3fb234b87
FEDORA-2026-c3fb234b87 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-c3fb234b87` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c3fb234b87 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-4401b94ad0 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-2026-4401b94ad0` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-4401b94ad0 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-395bd81c94 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-2026-395bd81c94` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-395bd81c94 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2026-395bd81c94 (libpcap-1.10.7-1.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-c3fb234b87 (libpcap-1.10.7-1.fc45) has been pushed to the Fedora 45 stable repository. If problem still persists, please make note of it in this bug report.