The crash reporting feature in Abrt allows local users to gain privileges by leveraging an execve by root after a chroot into a user-specified directory in a namedspaced environment.
https://github.com/abrt/abrt/pull/810
https://bugzilla.redhat.com/show_bug.cgi?id=1211223
https://www.exploit-db.com/exploits/36747/
https://www.exploit-db.com/exploits/36746/
https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-1970
http://www.openwall.com/lists/oss-security/2015/04/14/4
http://packetstormsecurity.com/files/131429/Abrt-Apport-Race-Condition-Symlink.html
http://packetstormsecurity.com/files/131423/Linux-Apport-Abrt-Local-Root-Exploit.html
http://packetstormsecurity.com/files/131422/Fedora-abrt-Race-Condition.html