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Category:   Application (Generic)  >   Xpdf Vendors:   Glyph and Cog
(Red Hat Issues Fix) Xpdf Buffer Overflow in doImage() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1012869
SecurityTracker URL:  http://securitytracker.com/id/1012869
CVE Reference:   CVE-2004-1125   (Links to External Site)
Date:  Jan 13 2005
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 3.00pl2
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.

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:   Red Hat has released a fix.

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4 xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a xpdf-2.02-9.4.i386.rpm

ia64:
58f17daa557c176847bfa810b97e00e3 xpdf-2.02-9.4.ia64.rpm

ppc:
a074f246495f1ebbaa0bdad34cd47edb xpdf-2.02-9.4.ppc.rpm

s390:
e3b911af69e4c30b4c22be1618986c6a xpdf-2.02-9.4.s390.rpm

s390x:
c9f16486d10ccc1f9d654b1db9ae72b2 xpdf-2.02-9.4.s390x.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204 xpdf-2.02-9.4.x86_64.rpm

Red Hat Desktop version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4 xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a xpdf-2.02-9.4.i386.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204 xpdf-2.02-9.4.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4 xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a xpdf-2.02-9.4.i386.rpm

ia64:
58f17daa557c176847bfa810b97e00e3 xpdf-2.02-9.4.ia64.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204 xpdf-2.02-9.4.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4 xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a xpdf-2.02-9.4.i386.rpm

ia64:
58f17daa557c176847bfa810b97e00e3 xpdf-2.02-9.4.ia64.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204 xpdf-2.02-9.4.x86_64.rpm

Vendor URL:  www.foolabs.com/xpdf/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  3

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



 Source Message Contents

Subject:  [RHSA-2005:018-01] Updated Xpdf packages fix security issues


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

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

Synopsis:          Updated Xpdf packages fix security issues
Advisory ID:       RHSA-2005:018-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-018.html
Issue date:        2005-01-12
Updated on:        2005-01-12
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2004-1125
- ---------------------------------------------------------------------

1. Summary:

Updated Xpdf packages that fix several security issues are now available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Problem description:

Xpdf is an X Window System based viewer for Portable Document Format (PDF)
files.

A buffer overflow flaw was found in the Gfx::doImage function of Xpdf. An
attacker could construct a carefully crafted PDF file that could cause Xpdf
to crash or possibly execute arbitrary code when opened. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2004-1125 to this issue.

Red Hat believes that the Exec-Shield technology (enabled by default since
Update 3) will block attempts to exploit this vulnerability on x86
architectures.

All users of the Xpdf packages should upgrade to these updated packages,
which resolve these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.  Use Red Hat
Network to download and update your packages.  To launch the Red Hat
Update Agent, use the following command:

    up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

    http://www.redhat.com/docs/manuals/enterprise/

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

143499 - CAN-2004-1125 xpdf buffer overflow

6. RPMs required:

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4  xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a  xpdf-2.02-9.4.i386.rpm

ia64:
58f17daa557c176847bfa810b97e00e3  xpdf-2.02-9.4.ia64.rpm

ppc:
a074f246495f1ebbaa0bdad34cd47edb  xpdf-2.02-9.4.ppc.rpm

s390:
e3b911af69e4c30b4c22be1618986c6a  xpdf-2.02-9.4.s390.rpm

s390x:
c9f16486d10ccc1f9d654b1db9ae72b2  xpdf-2.02-9.4.s390x.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204  xpdf-2.02-9.4.x86_64.rpm

Red Hat Desktop version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4  xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a  xpdf-2.02-9.4.i386.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204  xpdf-2.02-9.4.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4  xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a  xpdf-2.02-9.4.i386.rpm

ia64:
58f17daa557c176847bfa810b97e00e3  xpdf-2.02-9.4.ia64.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204  xpdf-2.02-9.4.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/xpdf-2.02-9.4.src.rpm
0698157d8dc5c71c31533d62bda960e4  xpdf-2.02-9.4.src.rpm

i386:
6a547a0365e1c2f0d40b1787e5be9d3a  xpdf-2.02-9.4.i386.rpm

ia64:
58f17daa557c176847bfa810b97e00e3  xpdf-2.02-9.4.ia64.rpm

x86_64:
15e0ffc7c4c416756cf7174153801204  xpdf-2.02-9.4.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=CAN-2004-1125

8. Contact:

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

Copyright 2005 Red Hat, Inc.

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