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TITLE:
Kerberos KDC Cross-Realm Referral Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA37977

VERIFY ADVISORY:
http://secunia.com/advisories/37977/

DESCRIPTION:
A vulnerability has been reported in Kerberos, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a NULL-pointer dereference error
in the implementation of cross-realm referrals. This can be exploited
to crash KDC via a specially crafted request.

The vulnerability is reported in krb5-1.7.

SOLUTION:
Apply patch:
http://web.mit.edu/kerberos/advisories/2009-003-patch.txt

The vulnerability will also be fixed in the upcoming krb5-1.7.1.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Jeff Blaine, Radoslav Bodo, Jakob Haufe, and
Jorgen Wahlsten.

ORIGINAL ADVISORY:
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2009-003.txt

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About:
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Please Note:
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clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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