Integer overflow in the authentication_agent_new_cookie function in PolicyKit (aka polkit) before 0.113 allows local users to gain privileges by creating a large number of connections, which triggers the issuance of a duplicate cookie value.
http://www.securitytracker.com/id/1035023
http://www.securityfocus.com/bid/75267
http://www.openwall.com/lists/oss-security/2015/06/16/21
http://www.openwall.com/lists/oss-security/2015/06/09/1
http://www.openwall.com/lists/oss-security/2015/06/08/3
http://lists.opensuse.org/opensuse-updates/2015-11/msg00042.html
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00010.html
http://lists.freedesktop.org/archives/polkit-devel/2015-May/000419.html
http://lists.freedesktop.org/archives/polkit-devel/2015-June/000427.html
http://lists.freedesktop.org/archives/polkit-devel/2015-July/000432.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162294.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161721.html