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Category:   Application (Generic)  >   KDE Vendors:   KDE.org
(KDE Issues Fix for kpdf) Xpdf Bugs in streams and t1lib Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1018919
SecurityTracker URL:  http://securitytracker.com/id/1018919
CVE Reference:   CVE-2007-4352, CVE-2007-5392, CVE-2007-5493   (Links to External Site)
Date:  Nov 8 2007
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): KDE 3.2.0 through 3.5.8; KOffice 1.x
Description:   Several vulnerabilities were reported in Xpdf. A remote user can cause arbitrary code to be executed on the target user's system. Kpdf is affected.

A remote user can create a specially crafted PDF file that, when loaded by the target user, will execute arbitrary code on the target system. The code will run with the privileges of the target user.

A specially crafted Type 1 font filename can trigger a flaw in the t1lib library and cause code execution [CVE-2007-4033]

Specially crafted data can trigger a memory corruption error in the DCTStream::readProgressiveDataUnit() function in 'xpdf/Stream.cc' [CVE-2007-4352].

Specially crafted data can trigger an integer overflow in the DCTStream::reset() function in 'xpdf/Stream.cc' [CVE-2007-5392].

A specially crafted CCITTFaxDecode filter can trigger a heap overflow in the CCITTFaxStream::lookChar() function in 'xpdf/Stream.cc' [CVE-2007-5393].

The vendor was notified on October 17, 2007.

Alin Rad Pop of Secunia Research reported three of these vulnerabilities. r0ut3r discovered one of these vulnerabilities.

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued the following patches.

Patch for KOffice 1.6.3 and newer is available from
ftp://ftp.kde.org/pub/kde/security_patches :

1d6b58dbe1cab4b0168a8e4344f8d7af koffice-1.6.3-xpdf2-CVE-2007-4352-5392-5393.diff


Patch for KDE 3.5.8 and newer is available from
ftp://ftp.kde.org/pub/kde/security_patches :

eee08cb565c24ad645aad3136de5162d post-3.5.8-kdegraphics-kpdf.diff


Patch for KDE 3.5.5 and newer is available from
ftp://ftp.kde.org/pub/kde/security_patches :

b2214c8e8f6300e72bd92f9ba12a33c7 post-3.5.5-kdegraphics-CVE-2007-5393.diff

Patch for KDE 3.4.3 and newer is available from
ftp://ftp.kde.org/pub/kde/security_patches :

e7ff688250cee0e1d81f4d65fc0f9871 post-3.4.3-kdegraphics-CVE-2007-5393.diff

The KDE advisory is available at:

http://www.kde.org/info/security/advisory-20071107-1.txt

Cause:   Access control error, Boundary error
Underlying OS:  Linux (Any)

Message History:   This archive entry is a follow-up to the message listed below.
Nov 7 2007 Xpdf Bugs in streams and t1lib Let Remote Users Execute Arbitrary Code



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