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>> Yelp URI Processing Remote Format String Vulnerability

Title : Yelp URI Processing Remote Format String Vulnerability
VUPEN ID : VUPEN/ADV-2008-2393
CVE ID : CVE-2008-3533
CWE ID : CWE-134
Rated as : Critical 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2008-08-18


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  Receive VUPEN Security notifications by SMS 

A vulnerability has been identified in Yelp, which could be exploited by remote attackers to cause a denial of service or compromise a vulnerable system. This issue is caused by a format string error in the "window_error()" [yelp-window.c] function when processing a malformed URI, which could be exploited by attackers to crash an affected application or execute arbitrary code by tricking a user into following a specially crafted link.

Affected Products

Yelp versions 2.x

Solution

Apply patch :
http://svn.gnome.org/viewvc/yelp/trunk/src/yelp-window.c?r1=3145&r2=3173

References

http://www.vupen.com/english/advisories/2008/2393
http://bugzilla.gnome.org/show_bug.cgi?id=546364
https://bugs.launchpad.net/ubuntu/+source/yelp/+bug/254860

Credits

Vulnerability reported by Aaron Grattafiori.

ChangeLog

2008-08-18 : Initial release

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