TITLE:
Novell GroupWise Messenger Accept-Language Buffer Overflow

SECUNIA ADVISORY ID:
SA19663

VERIFY ADVISORY:
http://secunia.com/advisories/19663/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From local network

SOFTWARE:
Novell GroupWise Messenger 2.x
http://secunia.com/product/9352/
Novell GroupWise 7.x
http://secunia.com/product/5667/

DESCRIPTION:
A vulnerability has been reported in Novell GroupWise Messenger,
which can be exploited by malicious people to compromise a vulnerable
system.

The vulnerability is caused due to a boundary error within the Novell
Messaging Agent service (port 8300/tcp) when processing the
"Accept-Language:" header. This can be exploited to cause a
stack-based buffer overflow via an overly long string (more than 16
characters) not containing "," or ";" characters.

Successful exploitation allows execution of arbitrary code.

The vulnerability has been reported in Novell GroupWise Messenger
2.0.

SOLUTION:
A fix is available with GroupWise Messenger 2.0 Public Beta 2 via the
GroupWise 7 Support Pack 1 Beta 2.
http://novell.com/beta

The fix will also be included in the shipping release of Messenger
2.0 SP1.

PROVIDED AND/OR DISCOVERED BY:
cirt.dk

ORIGINAL ADVISORY:
Novell:
http://support.novell.com/cgi-bin/search/searchtid.cgi?10100861.htm

Zero Day Initiative:
http://www.zerodayinitiative.com/advisories/ZDI-06-008.html

cirt.dk:
http://cirt.dk/advisories/cirt-42-advisory.txt

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