Technical Description

A vulnerability has been identified in Apple Mac OS X, which could be exploited by remote attackers to cause a denial of service or execute arbitrary commands. This flaw is due to heap overflow error in the KHTMLParser that does not properly handle specially crafted HTML documents, which could be exploited by remote attackers to crash an affected application (e.g. TextEdit or Safari) or compromise a vulnerable system via a malicious web page.

Affected Products

Apple Mac OS X version 10.4.3 and prior
Safari version 2.0.2 (416.13) and prior
TextEdit version 1.4 (220) and prior

Solution

Security Update 2006-001 for Mac OS X 10.4.5 (PPC) :
http://www.apple.com/support/downloads/securityupdate2006001macosx1045ppc.html
Security Update 2006-001 for Mac OS X 10.4.5 Client (Intel) :
http://www.apple.com/support/downloads/securityupdate2006001macosx1045clientintel.html
Security Update 2006-001 for Mac OS X 10.3.9 Client :
http://www.apple.com/support/downloads/securityupdate20060011039client.html
Security Update 2006-001 for Mac OS X 10.3.9 Server :
http://www.apple.com/support/downloads/securityupdate20060011039server.html

References

http://www.vupen.com/english/advisories/2005/3058
http://www.frsirt.com/english/reference/6753
http://security-protocols.com/advisory/sp-x22-advisory.txt

Credits

Vulnerability reported by Tom Ferris

ChangeLog

2005-12-22 : Initial release
2006-03-01 : Updated Solution

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