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Category:   Application (Generic)  >   libpng Vendors:   libpng.sourceforge.net
(Sun Issues Fix) libpng PNG tRNS Chunk Processing Error Lets Remote Users Deny Service
SecurityTracker Alert ID:  1018325
SecurityTracker URL:  http://securitytracker.com/id/1018325
CVE Reference:   CVE-2007-2445   (Links to External Site)
Updated:  Feb 14 2008
Original Entry Date:  Jun 29 2007
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 0.90 through 1.2.16
Description:   A vulnerability was reported in libpng. A remote user can cause denial of service conditions.

A remote user can create a PNG image with a specially crafted tRNS chunk that, when loaded by the target user, will cause the target application to crash.

The vendor indicates that it is not known whether arbitrary code execution is possible or not.

The vulnerability resides in 'pngrutil.c'.

Impact:   A remote user can create a PNG image that, when loaded by the target user, will cause the target application to crash.
Solution:   Sun has issued a fix.

SPARC Platform

* Solaris 10 with patch 137080-01 or later

x86 Platform

* Solaris 10 with patch 137081-01 or later

Sun is working on a fix for Solaris 8 and 9.

The Sun advisory is available at:

http://sunsolve.sun.com/search/document.do?assetkey=1-66-200871-1

Vendor URL:  downloads.sourceforge.net/libpng/libpng-1.2.18-ADVISORY.txt (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (Solaris - SunOS)
Underlying OS Comments:  8, 9, 10

Message History:   This archive entry is a follow-up to the message listed below.
May 17 2007 libpng PNG tRNS Chunk Processing Error Lets Remote Users Deny Service



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