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Category:   Application (Generic)  >   gpdf Vendors:   Glyph and Cog
(Red Hat Issues Fix for gpdf) KDE KOffice kpdf Buffer Overflows in Processing DCT and JPX Streams May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1015473
SecurityTracker URL:  http://securitytracker.com/id/1015473
CVE Reference:   CVE-2005-3191, CVE-2005-3192, CVE-2005-3193, CVE-2005-3624, CVE-2005-3625, CVE-2005-3626, CVE-2005-3627, CVE-2006-0746   (Links to External Site)
Date:  Jan 11 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): KOffice 1.3.0 up to including KOffice 1.4.2
Description:   Several vulnerabilities were reported in KDE KOffice in the kpdf component. A remote user can cause arbitrary code to be executed on the target user's system. Gpdf is affected.

The DCT stream parsing code does not properly validate user-supplied input. The DCTStream::readBaselineSOF() function in 'Stream.cc' does not properly validate the 'numComps' parameter. A remote user can create a specially crafted PDF file that, when processed by the target user, will trigger an overflow at potentially execute arbitrary code.

The DCTStream::readProgressiveSOF() and StreamPredictor::StreamPredictor() functions are also affected.

A similar overflow exists in the JPX Stream parsing code used in decoding embedded JPEG 2000 images. The JPXStream::readCodestream() function in 'JPXStream.cc' does not properly validate the 'nXTiles' and 'nYTiles' parameters.

The vulnerability resides in xpdf code that is shared with kpdf. The vulnerabilities in xpdf were originally reported by iDEFENSE.

In January 2006, the vendor issued an update to the advisory indicating that the original patches were incomplete and have been retracted.

In March 2006, it was reported that the fix for CVE-2005-3627 was not complete. The resulting vulnerability was assigned CVE-2006-0746. Marcelo Ricardo Leitner discovered this vulnerability.

Impact:   A remote user can create a PDF file that, when processed by the target user, will execute arbitrary code on the target user's system with the privileges of the target user.
Solution:   Red Hat has released a fix for gpdf, which is affected by this kpdf vulnerability.

The Red Hat advisory is available at:

Vendor URL:  www.kde.org/info/security/advisory-20051207-2.txt (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4

Message History:   This archive entry is a follow-up to the message listed below.
Dec 7 2005 KDE KOffice kpdf Buffer Overflows in Processing DCT and JPX Streams May Let Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2006:0177-01] Important: gpdf security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Important: gpdf security update
Advisory ID:       RHSA-2006:0177-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2006-0177.html
Issue date:        2006-01-11
Updated on:        2006-01-11
Product:           Red Hat Enterprise Linux
CVE Names:         CVE-2005-3624 CVE-2005-3625 CVE-2005-3626 CVE-2005-3627
- ---------------------------------------------------------------------

1. Summary:

An updated gpdf package that fixes several security issues is now available
for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Problem description:

gpdf is a GNOME based viewer for Portable Document Format (PDF) files.

Chris Evans discovered several flaws in the way gpdf processes PDF files.
An attacker could construct a carefully crafted PDF file that could cause
gpdf to crash or possibly execute arbitrary code when opened. The Common
Vulnerabilities and Exposures project assigned the names CVE-2005-3624,
CVE-2005-3625, CVE-2005-3626, and CVE-2005-3627 to these issues.

Users of gpdf should upgrade to this updated package, which contains a
backported patch to resolve these issues.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

176865 - [RHEL4] CVE-2005-3624 Additional xpdf issues (CVE-2005-3625 CVE-2005-3626 CVE-2005-3627)


6. RPMs required:

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/gpdf-2.8.2-7.4.src.rpm
d4e3f5d7f7d0f2c44a090318bcec3879  gpdf-2.8.2-7.4.src.rpm

i386:
1a64ae076a42994da47ec6a8eb88b2fe  gpdf-2.8.2-7.4.i386.rpm

ia64:
511bf1f06967c657101aaf1dc23e275c  gpdf-2.8.2-7.4.ia64.rpm

ppc:
ab9ee41d5702747b9fa73aa0bafbd99a  gpdf-2.8.2-7.4.ppc.rpm

s390:
deaab6eb19520a0bfad487a985b04dbf  gpdf-2.8.2-7.4.s390.rpm

s390x:
7ef372149da122cad87cea1a87f165fe  gpdf-2.8.2-7.4.s390x.rpm

x86_64:
4faf65a28e2f782807bf17e933b946af  gpdf-2.8.2-7.4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/gpdf-2.8.2-7.4.src.rpm
d4e3f5d7f7d0f2c44a090318bcec3879  gpdf-2.8.2-7.4.src.rpm

i386:
1a64ae076a42994da47ec6a8eb88b2fe  gpdf-2.8.2-7.4.i386.rpm

x86_64:
4faf65a28e2f782807bf17e933b946af  gpdf-2.8.2-7.4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/gpdf-2.8.2-7.4.src.rpm
d4e3f5d7f7d0f2c44a090318bcec3879  gpdf-2.8.2-7.4.src.rpm

i386:
1a64ae076a42994da47ec6a8eb88b2fe  gpdf-2.8.2-7.4.i386.rpm

ia64:
511bf1f06967c657101aaf1dc23e275c  gpdf-2.8.2-7.4.ia64.rpm

x86_64:
4faf65a28e2f782807bf17e933b946af  gpdf-2.8.2-7.4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/gpdf-2.8.2-7.4.src.rpm
d4e3f5d7f7d0f2c44a090318bcec3879  gpdf-2.8.2-7.4.src.rpm

i386:
1a64ae076a42994da47ec6a8eb88b2fe  gpdf-2.8.2-7.4.i386.rpm

ia64:
511bf1f06967c657101aaf1dc23e275c  gpdf-2.8.2-7.4.ia64.rpm

x86_64:
4faf65a28e2f782807bf17e933b946af  gpdf-2.8.2-7.4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3624
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3625
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3626
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3627

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2006 Red Hat, Inc.
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