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Category:   Application (Generic)  >   LibTIFF Vendors:   libtiff.org
(Red Hat Issues Fix) LibTIFF Buffer Underflow in Decoding LZW Data Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020782
SecurityTracker URL:  http://securitytracker.com/id/1020782
CVE Reference:   CVE-2008-2327   (Links to External Site)
Date:  Aug 28 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.7.2, 3.8.2
Description:   A vulnerability was reported in LibTIFF. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted TIFF file that, when loaded by the target application using libTIFF, will trigger a buffer underflow and execute arbitrary code on the target system. The code will run with the privileges of the target application.

The vulnerability resides in 'tif_lzw.c'.

Drew Yao reported this vulnerability.

Impact:   A remote user can create a file that, when processed by the target application, will execute arbitrary code on the target system.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0863.html

Vendor URL:  www.libtiff.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  2.1, 3

Message History:   This archive entry is a follow-up to the message listed below.
Aug 26 2008 LibTIFF Buffer Underflow in Decoding LZW Data Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2008:0863-01] Important: libtiff security update


-----BEGIN PGP SIGNED MESSAGE-----
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: libtiff security update
Advisory ID:       RHSA-2008:0863-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0863.html
Issue date:        2008-08-28
CVE Names:         CVE-2008-2327 
=====================================================================

1. Summary:

Updated libtiff packages that fix a security issue are now available for
Red Hat Enterprise Linux 2.1 and 3.

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 (Advanced Server) version 2.1  - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
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. Description:

The libtiff packages contain a library of functions for manipulating Tagged
Image File Format (TIFF) files.

Multiple uses of uninitialized values were discovered in libtiff's
Lempel-Ziv-Welch (LZW) compression algorithm decoder. An attacker could
create a carefully crafted LZW-encoded TIFF file that would cause an
application linked with libtiff to crash or, possibly, execute arbitrary
code. (CVE-2008-2327)

Red Hat would like to thank Drew Yao of the Apple Product Security team for
reporting this issue.

All libtiff users are advised to upgrade to these updated packages, which
contain backported patches to resolve this issue.

4. Solution:

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

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

458674 - CVE-2008-2327 libtiff: use of uninitialized memory in LZW decoder

6. Package List:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 :

Source:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/libtiff-3.5.7-31.el2.src.rpm

i386:
libtiff-3.5.7-31.el2.i386.rpm
libtiff-devel-3.5.7-31.el2.i386.rpm

ia64:
libtiff-3.5.7-31.el2.ia64.rpm
libtiff-devel-3.5.7-31.el2.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

Source:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/libtiff-3.5.7-31.el2.src.rpm

ia64:
libtiff-3.5.7-31.el2.ia64.rpm
libtiff-devel-3.5.7-31.el2.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

Source:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/libtiff-3.5.7-31.el2.src.rpm

i386:
libtiff-3.5.7-31.el2.i386.rpm
libtiff-devel-3.5.7-31.el2.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

Source:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/libtiff-3.5.7-31.el2.src.rpm

i386:
libtiff-3.5.7-31.el2.i386.rpm
libtiff-devel-3.5.7-31.el2.i386.rpm

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/libtiff-3.5.7-31.el3.src.rpm

i386:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-devel-3.5.7-31.el3.i386.rpm

ia64:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-3.5.7-31.el3.ia64.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.ia64.rpm
libtiff-devel-3.5.7-31.el3.ia64.rpm

ppc:
libtiff-3.5.7-31.el3.ppc.rpm
libtiff-3.5.7-31.el3.ppc64.rpm
libtiff-debuginfo-3.5.7-31.el3.ppc.rpm
libtiff-debuginfo-3.5.7-31.el3.ppc64.rpm
libtiff-devel-3.5.7-31.el3.ppc.rpm

s390:
libtiff-3.5.7-31.el3.s390.rpm
libtiff-debuginfo-3.5.7-31.el3.s390.rpm
libtiff-devel-3.5.7-31.el3.s390.rpm

s390x:
libtiff-3.5.7-31.el3.s390.rpm
libtiff-3.5.7-31.el3.s390x.rpm
libtiff-debuginfo-3.5.7-31.el3.s390.rpm
libtiff-debuginfo-3.5.7-31.el3.s390x.rpm
libtiff-devel-3.5.7-31.el3.s390x.rpm

x86_64:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-3.5.7-31.el3.x86_64.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.x86_64.rpm
libtiff-devel-3.5.7-31.el3.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/libtiff-3.5.7-31.el3.src.rpm

i386:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-devel-3.5.7-31.el3.i386.rpm

x86_64:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-3.5.7-31.el3.x86_64.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.x86_64.rpm
libtiff-devel-3.5.7-31.el3.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/libtiff-3.5.7-31.el3.src.rpm

i386:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-devel-3.5.7-31.el3.i386.rpm

ia64:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-3.5.7-31.el3.ia64.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.ia64.rpm
libtiff-devel-3.5.7-31.el3.ia64.rpm

x86_64:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-3.5.7-31.el3.x86_64.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.x86_64.rpm
libtiff-devel-3.5.7-31.el3.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/libtiff-3.5.7-31.el3.src.rpm

i386:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-devel-3.5.7-31.el3.i386.rpm

ia64:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-3.5.7-31.el3.ia64.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.ia64.rpm
libtiff-devel-3.5.7-31.el3.ia64.rpm

x86_64:
libtiff-3.5.7-31.el3.i386.rpm
libtiff-3.5.7-31.el3.x86_64.rpm
libtiff-debuginfo-3.5.7-31.el3.i386.rpm
libtiff-debuginfo-3.5.7-31.el3.x86_64.rpm
libtiff-devel-3.5.7-31.el3.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-2008-2327
http://www.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2008 Red Hat, Inc.
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