Source: policycoreutils Version: 3.11-1 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for policycoreutils. CVE-2026-19079[0]: | A TOCTOU (Time-of-Check-Time-of-Use) race condition vulnerability | was found in the fixfiles script in policycoreutils. When running | fixfiles relabel or fixfiles restore, the script used find and chcon | commands to locate and relabel unlabeled files under /tmp and other | directories. A local attacker could exploit a race window between | the file discovery and the label change operation by swapping | directory components with symlinks, causing chcon to follow the | symlink and modify SELinux labels on arbitrary system files. This | could undermine SELinux mandatory access control protections on | critical files such as /etc/shadow. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-19079 https://www.cve.org/CVERecord?id=CVE-2026-19079 [1] https://github.com/SELinuxProject/selinux/commit/a556538c2d5d2583273e025b45c02651fef47679 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
