Description
The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client.
References (8)
Core 8
Core References
Vendor Advisory vendor-advisory
x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2010:202
Patch vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/43756
Patch, Vendor Advisory x_refsource_confirm
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-006.txt
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/514144/100/0/threaded
Third Party Advisory vdb-entry
x_refsource_vupen
http://www.vupen.com/english/advisories/2010/2865
Vendor Advisory vendor-advisory
x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0863.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-999-1
Scores
EPSS
0.0146
EPSS Percentile
81.1%
Details
CWE
CWE-20
Status
published
Products (4)
mit/kerberos_5
1.8
mit/kerberos_5
1.8.1
mit/kerberos_5
1.8.2
mit/kerberos_5
1.8.3
Published
Oct 07, 2010
Tracked Since
Feb 18, 2026