Gentoo Linux Security Advisory 201201-13 - Multiple vulnerabilities have been found in MIT Kerberos 5, the most severe of which may allow remote execution of arbitrary code. Versions less than 1.9.2-r1 are affected.
5fe5b981b497ad572aa4e53428ce29f2dcd53be74dc124715f4b3cff09100dd9
Mandriva Linux Security Advisory 2011-184 - The process_tgs_req function in do_tgs_req.c in the Key Distribution Center 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error. The updated packages have been patched to correct this issue.
4932acaac14fc272e384b8a30871d6a98ebaed4dbd26dd9625c16adf9d22648c
Ubuntu Security Notice 1290-1 - Simo Sorce discovered that a NULL pointer dereference existed in the Kerberos Key Distribution Center (KDC). An authenticated remote attacker could use this to cause a denial of service.
7ed0fbc4432ed32166067d84ab8cbdd22401e5d3e348a0d58e255c272905e643
MIT krb5 Security Advisory 2011-007 - In releases krb5-1.9 and later, the KDC can crash due to a null pointer dereference in code that handles TGS (Ticket Granting Service) requests. The trigger condition is trivial to produce using unmodified client software, but requires the ability to authenticate as a principal in the KDC's realm.
4ca042a5da054adcd94232f80427d3eb47e18bef1cfb4b02d416b3b522988c17
Red Hat Security Advisory 2011-1790-01 - Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third-party, the Key Distribution Center. A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC processed certain TGS requests. A remote, authenticated attacker could use this flaw to crash the KDC via a specially-crafted TGS request.
600a23f94d8d538936ba2fa387701973abd9cd00e5bd7b0d998aaff3751e10f7