MEDIUM
Russ Allbery pam-krb5 before 3.13, when linked against MIT Kerberos, does not properly initialize the Kerberos libraries for setuid use, which allows local users to gain privileges by pointing an environment variable to a modified Kerberos configuration file, and then launching a PAM-based setuid application.
http://secunia.com/advisories/33914
http://secunia.com/advisories/33917
http://secunia.com/advisories/34260
http://secunia.com/advisories/34449
http://security.gentoo.org/glsa/glsa-200903-39.xml
http://securitytracker.com/id?1021711
http://sunsolve.sun.com/search/document.do?assetkey=1-66-252767-1
http://support.avaya.com/elmodocs2/security/ASA-2009-070.htm
http://www.debian.org/security/2009/dsa-1721
http://www.eyrie.org/~eagle/software/pam-krb5/security/2009-02-11.html
http://www.securityfocus.com/archive/1/500892/100/0/threaded
http://www.securityfocus.com/bid/33740
http://www.ubuntu.com/usn/USN-719-1
http://www.vupen.com/english/advisories/2009/0410
http://www.vupen.com/english/advisories/2009/0426
http://www.vupen.com/english/advisories/2009/0979
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5669
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5732