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TITLE:
GroupWise Messenger Blowfish Zero-Sized Strings Denial of Service

SECUNIA ADVISORY ID:
SA22244

VERIFY ADVISORY:
http://secunia.com/advisories/22244/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Novell GroupWise Messenger 1.x
http://secunia.com/product/12191/
Novell GroupWise Messenger 2.x
http://secunia.com/product/9352/

DESCRIPTION:
A vulnerability has been reported in GroupWise Messenger, 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
within the blowfish routines when handling zero-sized strings. This
can be exploited to crash the service via a specially crafted HTTP
POST request with a modified "val" parameter.

The vulnerability is reported in GroupWise 1.0.6 and 2.02 Messenger
Agents. Other versions may also be affected.

SOLUTION:
Apply hotfix.

GroupWise 1.0.6 Messenger Agents:
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2974452.htm

GroupWise 2.0.2 Messenger Agents:
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2974440.htm

PROVIDED AND/OR DISCOVERED BY:
Discovered by CIRT.DK and reported via iDEFENSE.

ORIGINAL ADVISORY:
Novell:
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2974452.htm
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2974440.htm

iDEFENSE:
http://idefense.com/intelligence/vulnerabilities/display.php?id=416

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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:
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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.

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