GroupWise Messenger Blowfish Zero-Sized Strings Denial of Service - Secunia Advisories - Vulnerability Intelligence

GroupWise Messenger Blowfish Zero-Sized Strings Denial of Service
Secunia Advisory:	SA22244	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2006-10-03
Last Update:	2006-10-27
Popularity:	6,481 views

Critical:	Moderately critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

Software:	Novell GroupWise Messenger 1.x Novell GroupWise Messenger 2.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2006-4511

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. Changelog: 2006-10-27: Added link to US-CERT. 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 Other References: US-CERT VU#796956: http://www.kb.cert.org/vuls/id/796956

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