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Category:   Application (Generic)  >   KDE Vendors:   KDE.org
KDE kpdf Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1017514
SecurityTracker URL:  http://securitytracker.com/id/1017514
CVE Reference:   CVE-2007-0104   (Links to External Site)
Date:  Jan 15 2007
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 3.2.0 up to including KDE 3.5.5
Description:   A vulnerability was reported in KDE kpdf. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a PDF file with a specially crafted catalog dictionary or a specially crafted Pages attribute that, when loaded by the target user, will cause the viewer to enter an infinite loop.

The vulnerability resides in xpdf code (which is shared by kpdf).

The underlying vulnerability in xpdf was reported by LMH.

Impact:   A remote user can create a file that, when loaded by the target user, will cause the kpdf viewer on the target user's system to be disrupted.
Solution:   The vendor has issued a fixed version (3.5.6).

Patches are also available:

Patch for KOffice 1.2.1 and newer is available from
ftp://ftp.kde.org/pub/kde/security_patches :

dc28881c39f11c040f8c942e4af238d1 koffce-xpdf-CVE-2007-0104.diff

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

a690ce46117257609c2b43485ea4d0d7 post-3.5.5-kdegraphics-CVE-2007-0104.diff

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

c2d4c2aa3aa990e2dba00f782a140a1b post-3.2.3-kdegraphics-CVE-2007-0104.diff

The KDE advisory is available at:

http://www.kde.org/info/security/advisory-20070115-1.txt

Vendor URL:  www.kde.org/info/security/advisory-20070115-1.txt (Links to External Site)
Cause:   State error
Underlying OS:   Linux (Any)

Message History:   None.


 Source Message Contents

Date:  Mon, 15 Jan 2007 12:15:01 -0500
Subject:  http://www.kde.org/info/security/advisory-20070115-1.txt


KDE Security Advisory: kpdf/kword/xpdf denial of service vulnerability
Original Release Date: 2007-01-15
URL: http://www.kde.org/info/security/advisory-20070115-1.txt

0. References
        CVE-2007-0104


1. Systems affected:

        KDE 3.2.0 up to including KDE 3.5.5. KDE 3.5.6 and newer is
        not affected. KOffice 1.2 and newer contain the same code.


2. Overview:

        kpdf, the KDE pdf viewer, shares code with xpdf. xpdf contains
        a vulnerability that can cause denial of service (infinite loop)
        via a PDF file that contains a crafted catalog dictionary
        or a crafted Pages attribute that references an invalid page
        tree node.


3. Impact:

        Remotely supplied pdf files can be used to disrupt the kpdf
        viewer on the client machine.


4. Solution:

        Source code patches have been made available which fix these
        vulnerabilities. Contact your OS vendor / binary package provider
        for information about how to obtain updated binary packages.


5. Patch:

        Patch for KOffice 1.2.1 and newer is available from 
        ftp://ftp.kde.org/pub/kde/security_patches :

        dc28881c39f11c040f8c942e4af238d1  koffce-xpdf-CVE-2007-0104.diff

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

        a690ce46117257609c2b43485ea4d0d7  post-3.5.5-kdegraphics-CVE-2007-0104.diff

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

        c2d4c2aa3aa990e2dba00f782a140a1b  post-3.2.3-kdegraphics-CVE-2007-0104.diff
 
 


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