The KDE Clock KCM policykit helper in kde-workspace before 4.11.14 and plasma-desktop before 5.1.1 allows local users to gain privileges via a crafted ntpUtility (ntp utility name) argument.
https://www.kde.org/info/security/advisory-20141106-1.txt
https://security.gentoo.org/glsa/201512-12
http://www.ubuntu.com/usn/USN-2402-1
http://www.securityfocus.com/bid/70904
http://www.openwall.com/lists/oss-security/2014/11/07/3
http://www.openwall.com/lists/oss-security/2014/11/04/9
http://lists.fedoraproject.org/pipermail/package-announce/2014-November/144093.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-November/144034.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-November/143781.html