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[SA39037] Heimdal Two Denial of Service Vulnerabilities

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Mar 22 2010 - 21:11:17 CDT

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TITLE:
Heimdal Two Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA39037

VERIFY ADVISORY:
http://secunia.com/advisories/39037/

DESCRIPTION:
Some vulnerabilities have been reported in Heimdal, which can be
exploited by malicious people to cause a DoS (Denial of Service).

1) An incorrect length check while decrypting data can be exploited
to cause a crash.

2) An error in the HMAC implementation can be exploited to clear too
much memory and cause a crash.

The vulnerabilities are reported in versions prior to 1.3.2.

SOLUTION:
Update to version 1.3.2.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Tom Yu of MIT and Andrew Tridge of Samba.

ORIGINAL ADVISORY:
http://www.h5l.org/advisories.html?show=2010-03-21

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