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CVE-2012-1014

Published: 31 July 2012

The process_as_req function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.10.x before 1.10.3 does not initialize a certain structure member, which allows remote attackers to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a malformed AS-REQ request.

Notes

AuthorNote
sbeattie
krb5 1.10 and newer
code execution potential probably blocked by glibc
double-free detection

Priority

Medium

Status

Package Release Status
krb5
Launchpad, Ubuntu, Debian
hardy Not vulnerable
(1.6.dfsg.3~beta1-2ubuntu1.8)
lucid Not vulnerable
(1.8.1+dfsg-2ubuntu0.10)
natty Not vulnerable
(1.8.3+dfsg-5ubuntu2.2)
oneiric Not vulnerable
(1.9.1+dfsg-1ubuntu2.2)
precise
Released (1.10+dfsg~beta1-2ubuntu0.3)
upstream Needs triage

Patches:
upstream: http://web.mit.edu/kerberos/advisories/2012-001-patch.txt