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Category:   Application (Generic)  >   KDE Vendors:   KDE.org
(KDE Issues Fix for kpdf) Xpdf Buffer Overflow in doImage() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1012663
SecurityTracker URL:  http://securitytracker.com/id/1012663
CVE Reference:   CVE-2004-1125   (Links to External Site)
Date:  Dec 23 2004
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.2 through 3.2.3, 3.3 through 3.3.2
Description:   iDEFENSE reported a buffer overflow vulnerability in Xpdf. A remote user can cause arbitrary code to be executed on the target user's system. KDE's kpdf is affected.

It is reported that a remote user can create a specially crafted PDF file that, when viewed by the target user, will trigger an overflow and execute arbitrary code with the privileges of the target user.

The flaw resides in the Gfx::doImage() function in 'xpdf/Gfx.cc', where the maskColors array can be overflowed.

The vendor was notified on November 23, 2004.

The original advisory is available at:

http://www.idefense.com/application/poi/display?id=172&type=vulnerabilities

Impact:   A remote user can create a specially crafted PDF file that, when viewed by the target user, will execute arbitrary code on the target user's system. The code will run with the privileges of the target user.
Solution:   KDE has issued the following patches for kpdf, which is affected by this xpdf vulnerability.

Patch for KDE 3.2.3 is available from
ftp://ftp.kde.org/pub/kde/security_patches :

6f345c4b89f0bc27522f5d62bfd941cd post-3.2.3-kdegraphics-2.diff

Patch for KDE 3.3.2 is available from
ftp://ftp.kde.org/pub/kde/security_patches :

0ac92868d3b84284e54877e32cde521f post-3.3.2-kdegraphics.diff

Vendor URL:  www.kde.org/info/security/advisory-20041223-1.txt (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry is a follow-up to the message listed below.
Dec 21 2004 Xpdf Buffer Overflow in doImage() Lets Remote Users Execute Arbitrary Code



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