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Category:   Application (Multimedia)  >   ImageMagick Vendors:   ImageMagick.org
ImageMagick Heap Overflow in ReadPNMImage() May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1014097
SecurityTracker URL:  http://securitytracker.com/id/1014097
CVE Reference:   CVE-2005-1739   (Links to External Site)
Date:  Jun 3 2005
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 6.2.2-3
Description:   In April 2005, a vulnerability was reported in ImageMagick in the XWD decoder. A remote user can cause denial of service conditions and may be able to execute arbitrary code on the target system.

A remote user can create a PNM image file with specially crafted color map values that, when processed by the target user, will trigger a heap overflow.

The flaw resides in 'coders/pnm.c' in the ReadPNMImage() function.

A command to create a demonstration exploit PNM file is provided:

bash$ perl -e 'print "P7\n1\n1 1\n1"' > vuln.pnm

Damian Put reported this vulnerability.

The original advisory is available at:

http://www.overflow.pl/adv/imheapoverflow.txt

Impact:   A remote user can cause denial of service conditions and may be able to execute arbitrary code on the target system.
Solution:   The vendor has issued a fixed version (6.2.2-3), available at:

http://www.imagemagick.org/script/download.php

Vendor URL:  www.imagemagick.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jun 3 2005 (Red Hat Issues Fix) ImageMagick Heap Overflow in ReadPNMImage() May Let Remote Users Execute Arbitrary Code
Red Hat has released a fix.



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