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>> Apple iChat "aim" URI Handler Remote Format String and Denial of Service Vulnerability

Title : Apple iChat "aim" URI Handler Remote Format String and Denial of Service Vulnerability
VUPEN ID : VUPEN/ADV-2007-0274
CVE ID : CVE-2007-0021
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-01-22


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Apple iChat, which could be exploited by attackers to cause a denial of service or potentially execute arbitrary commands. This issue is due to a format string error when handling an "aim://" URI with a specially crafted argument (e.g. "roomname"), which could be exploited by attackers to crash a vulnerable application or potentially compromise an affected system by tricking a user into visiting a specially crafted web page.

Affected Products

Apple Mac OS X version 10.3.9 and prior
Apple Mac OS X Server version 10.3.9 and prior
Apple Mac OS X version 10.4.8 and prior
Apple Mac OS X Server version 10.4.8 and prior

Solution

Security Update 2007-002 (Universal) :
http://www.apple.com/support/downloads/securityupdate2007002universal.html

Security Update 2007-002 (PPC) :
http://www.apple.com/support/downloads/securityupdate2007002ppc.html

Security Update 2007-002 (Panther) :
http://www.apple.com/support/downloads/securityupdate2007002panther.html

References

http://www.vupen.com/english/advisories/2007/0274
http://projects.info-pull.com/moab/MOAB-20-01-2007.html
http://docs.info.apple.com/article.html?artnum=305102

Credits

Vulnerability reported by LMH

ChangeLog

2007-01-22 : Initial release
2007-02-15 : Updated Solution

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