TITLE:
Cyrus SASL DIGEST-MD5 Pre-Authentication Denial of Service

SECUNIA ADVISORY ID:
SA19618

VERIFY ADVISORY:
http://secunia.com/advisories/19618/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Cyrus SASL Library 2.x
http://secunia.com/product/4019/

DESCRIPTION:
Mu Security has reported a vulnerability in Cyrus SASL library, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an unspecified error during
DIGEST-MD5 negotiation.

The vulnerability has been reported in version 2.1.18. Other versions
may also be affected.

SOLUTION:
Update to version 2.1.21.

PROVIDED AND/OR DISCOVERED BY:
Mu Security

ORIGINAL ADVISORY:
http://labs.musecurity.com/advisories/MU-200604-01.txt

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
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.

----------------------------------------------------------------------