Description
do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.
References (4)
Core 4
Core References
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1030743
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2013-12/msg00026.html
Various Sources x_refsource_confirm
http://web.mit.edu/kerberos/krb5-1.11/README-1.11.4.txt
Exploit, Patch x_refsource_confirm
https://github.com/krb5/krb5/commit/4c023ba43c16396f0d199e2df1cfa59b88b62acc
Scores
EPSS
0.0054
EPSS Percentile
67.8%
Details
CWE
CWE-20
Status
published
Products (4)
mit/kerberos_5
1.11
mit/kerberos_5
1.11.1
mit/kerberos_5
1.11.2
mit/kerberos_5
1.11.3
Published
Nov 20, 2013
Tracked Since
Feb 18, 2026