Vulnerability CVE-2010-1322


Published: 2010-10-07   Modified: 2012-02-13

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
KDC uninitialized pointer crash in authorization data handling
Tom Yu
11.10.2010

Type:

CWE-20

(Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
MIT -> Kerberos 

 References:
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00006.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-006.txt
http://www.mandriva.com/security/advisories?name=MDVSA-2010:202
http://www.redhat.com/support/errata/RHSA-2010-0863.html
http://www.securityfocus.com/archive/1/514144/100/0/threaded
http://www.securityfocus.com/bid/43756
http://www.ubuntu.com/usn/USN-999-1
http://www.vupen.com/english/advisories/2010/2865

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