MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (buffer over-read or NULL pointer dereference, and application crash) by injecting invalid tokens into a GSSAPI application session.
advisories.mageia.org/MGASA-2014-0345.html
krbdev.mit.edu/rt/Ticket/Display.html?id=7949
rhn.redhat.com/errata/RHSA-2015-0439.html
secunia.com/advisories/59102
secunia.com/advisories/60082
www.debian.org/security/2014/dsa-3000
www.mandriva.com/security/advisories?name=MDVSA-2014:165
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
www.securityfocus.com/bid/68908
www.securitytracker.com/id/1030706
exchange.xforce.ibmcloud.com/vulnerabilities/94903
github.com/krb5/krb5/commit/e6ae703ae597d798e310368d52b8f38ee11c6a73