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Netsikker nu! 2008
 
Apple Mac OS X iChat Bonjour Denial of Service
Secunia Advisory: SA23945
Release Date: 2007-01-31
Last Update: 2007-02-19
Popularity: 12,266 views

Critical:
Not critical
Impact: DoS
Where: From local network
Solution Status: Vendor Patch

OS:Apple Macintosh OS X

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CVE reference:CVE-2007-0614
CVE-2007-0613


Description:
LMH has reported a vulnerability in Apple iChat, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in iChat agent using Bonjour within the processing of TXT key hashes. This can be exploited to cause the application to crash by broadcasting a specially crafted TXT key hash.

The vulnerability is reported in iChat 3.1.6 (v441), InstantMessage framework v428 on Mac OS X 10.4.8 (x86). Other versions may also be affected.

Solution:
Apply Security Update 2007-002.
http://docs.info.apple.com/article.html?artnum=305102

Provided and/or discovered by:
LMH

Changelog:
2007-02-01: Added CVE reference.
2007-02-02: Added CVE reference.
2007-02-19: Updated "Solution" section.

Original Advisory:
http://projects.info-pull.com/moab/MOAB-29-01-2007.html

Other References:
Apple:
http://docs.info.apple.com/article.html?artnum=305102


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