Simple Desktop Display Manager (SDDM) before 0.10.0 allows local users to gain root privileges because code running as root performs write operations within a user home directory, and this user may have created links in advance (exploitation requires the user to win a race condition in the ~/.Xauthority chown case, but not other cases).
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7272
Reference (s):
- https://bugzilla.redhat.com/show_bug.cgi?id=1149610
- https://github.com/sddm/sddm/pull/280
- FEDORA:FEDORA-2014-12308
- URL: http://lists.fedoraproject.org/pipermail/package-announce/2014-October/141494.html
- FEDORA:FEDORA-2014-12442