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______________________________________________________________________________

SUSE Security Announcement

Package: libtiff
Announcement ID: SUSE-SA:2006:044
Date: Tue, 01 Aug 2006 17:00:00 +0000
Affected Products: SLE SDK 10
SUSE LINUX 10.1
SUSE LINUX 10.0
SUSE LINUX 9.3
SUSE LINUX 9.2
SuSE Linux Desktop 1.0
SuSE Linux Enterprise Server 8
SUSE SLES 10
SUSE SLES 9
UnitedLinux 1.0
Vulnerability Type: possible remote code execution
Severity (1-10): 8
SUSE Default Package: yes
Cross-References: CVE-2006-3459, CVE-2006-3460, CVE-2006-3461,
CVE-2006-3462, CVE-2006-3463, CVE-2006-3464,
CVE-2006-3465

Content of This Advisory:
1) Security Vulnerability Resolved:
fixed heap- and integer-overflows
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

This update of libtiff is the result of a source-code audit done by
Tavis Ormandy, Google Security Team. It fixes various bugs that can
lead to denial-of-service conditions as well as to remote code execution
while parsing a tiff image provided by an attacker.

2) Solution or Work-Around

No work-around known.

3) Special Instructions and Notes

Please restart all applications using libtiff. Desktop users should logout
and re-login.
On server systems you have to restart all server applications manually.

4) Package Location and Checksums

The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command

rpm -Fhv <file.rpm>

to apply the update, replacing <file.rpm> with the filename of the
downloaded RPM package.


x86 Platform:

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/libtiff-3.8.2-5.9.i586.rpm
cee78f3b8393e87212f6c7eee1f1352f
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/libtiff-devel-3.8.2-5.9.i586.rpm
29374ea1d07be6b3c19828622fc8d85d

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/libtiff-3.7.3-2.6.i586.rpm
c48675b2ee56aedbe4d14ae756343883
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/libtiff-devel-3.7.3-2.6.i586.rpm
a19043509104bbdf56e208c44533fd17

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/libtiff-3.7.1-7.8.i586.rpm
a9302f4fcd3b68edcbf6fa65ee8442c3
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/libtiff-devel-3.7.1-7.8.i586.rpm
12d72bbfb69a3fdb99007570d1e085ad

SUSE LINUX 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/libtiff-3.6.1-47.12.i586.rpm
7f20ea84b8c0f57b61d885c45111d6b5
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/libtiff-devel-3.6.1-47.12.i586.rpm
f36060a6d1979685ee7ca48e7b752a13

Power PC Platform:

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/libtiff-3.8.2-5.9.ppc.rpm
854544b32d5b37295c74ccb50117696f
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/libtiff-devel-3.8.2-5.9.ppc.rpm
133cb5b0ca0d416e9680f887c97ad755

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/libtiff-3.7.3-2.6.ppc.rpm
99f01efad45f24e8d6d71d267cb8268c
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/libtiff-devel-3.7.3-2.6.ppc.rpm
d7e48acc3fcb3c1ba3f4eb1f10ea1bee

x86-64 Platform:

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/libtiff-3.8.2-5.9.x86_64.rpm
1925947454d5a294eea0ae33f84e7a18
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/libtiff-32bit-3.8.2-5.9.x86_64.rpm
d5815aa12ff3a020e9db8217a968d413
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/libtiff-devel-3.8.2-5.9.x86_64.rpm
aef78c4623c541daffd9d7264481028d
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/libtiff-devel-32bit-3.8.2-5.9.x86_64.rpm
2310393005c3a73e8a07149febf55d0c

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/libtiff-3.7.3-2.6.x86_64.rpm
58b69feace7592ebe3d2cfb89145e23f
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/libtiff-32bit-3.7.3-2.6.x86_64.rpm
3eb152a3d6896290bb14ce2e282f7fa4
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/libtiff-devel-3.7.3-2.6.x86_64.rpm
01395b47c733b9e8624b1c16fb7d3da0
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/libtiff-devel-32bit-3.7.3-2.6.x86_64.rpm
06071d61873c07b51feec446cd708bb8

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/libtiff-3.7.1-7.8.x86_64.rpm
1c210504374ad6344a8a6e4f4d248707
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/libtiff-32bit-9.3-7.3.x86_64.rpm
86b90ea77293182e332ace686ae7d08e
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/libtiff-devel-3.7.1-7.8.x86_64.rpm
9f87e7aed1c3847bb74795e3f9180354

SUSE LINUX 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/libtiff-3.6.1-47.12.x86_64.rpm
17a80e08f430667462d8c8dbda680671
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/libtiff-32bit-9.2-200607271428.x86_64.rpm
f11b621445853ca5e01a85dba0e86709
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/libtiff-devel-3.6.1-47.12.x86_64.rpm
63006aa37717b2e4151847e71e94b9ad

Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:

http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/e25437fbc064183ed90d520bb8ab53f2.html
http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/af67a688fbb2e507784c8a1e9db46ab3.html

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

Please read the weekly summary report.

______________________________________________________________________________

6) Authenticity Verification and Additional Information

- Announcement authenticity verification:

SUSE security announcements are published via mailing lists and on Web
sites. The authenticity and integrity of a SUSE security announcement is
guaranteed by a cryptographic signature in each announcement. All SUSE
security announcements are published with a valid signature.

To verify the signature of the announcement, save it as text into a file
and run the command

gpg --verify <file>

replacing <file> with the name of the file where you saved the
announcement. The output for a valid signature looks like:

gpg: Signature made <DATE> using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team <security@suse.de>"

where <DATE> is replaced by the date the document was signed.

If the security team's key is not contained in your key ring, you can
import it from the first installation CD. To import the key, use the
command

gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc

- Package authenticity verification:

SUSE update packages are available on many mirror FTP servers all over the
world. While this service is considered valuable and important to the free
and open source software community, the authenticity and the integrity of
a package needs to be verified to ensure that it has not been tampered
with.

There are two verification methods that can be used independently from
each other to prove the authenticity of a downloaded file or RPM package:

1) Using the internal gpg signatures of the rpm package
2) MD5 checksums as provided in this announcement

1) The internal rpm package signatures provide an easy way to verify the
authenticity of an RPM package. Use the command

rpm -v --checksig <file.rpm>

to verify the signature of the package, replacing <file.rpm> with the
filename of the RPM package downloaded. The package is unmodified if it
contains a valid signature from build@suse.de with the key ID 9C800ACA.

This key is automatically imported into the RPM database (on
RPMv4-based distributions) and the gpg key ring of 'root' during
installation. You can also find it on the first installation CD and at
the end of this announcement.

2) If you need an alternative means of verification, use the md5sum
command to verify the authenticity of the packages. Execute the command

md5sum <filename.rpm>

after you downloaded the file from a SUSE FTP server or its mirrors.
Then compare the resulting md5sum with the one that is listed in the
SUSE security announcement. Because the announcement containing the
checksums is cryptographically signed (by security@suse.de), the
checksums show proof of the authenticity of the package if the
signature of the announcement is valid. Note that the md5 sums
published in the SUSE Security Announcements are valid for the
respective packages only. Newer versions of these packages cannot be
verified.

- SUSE runs two security mailing lists to which any interested party may
subscribe:

suse-security@suse.com
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
<suse-security-subscribe@suse.com>.

suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
<suse-security-announce-subscribe@suse.com>.

For general information or the frequently asked questions (FAQ),
send mail to <suse-security-info@suse.com> or
<suse-security-faq@suse.com>.

=====================================================================
SUSE's security contact is <security@suse.com> or <security@suse.de>.
The <security@suse.de> public key is listed below.
=====================================================================
______________________________________________________________________________

The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular, the
clear text signature should show proof of the authenticity of the text.

SUSE Linux Products GmbH provides no warranties of any kind whatsoever
with respect to the information contained in this security advisory.

Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@suse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>

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