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______________________________________________________________________________

SUSE Security Announcement

Package: samba
Announcement ID: SUSE-SA:2007:016
Date: Thu, 15 Feb 2007 15:00:00 +0000
Affected Products: SUSE LINUX 9.3
SUSE LINUX 10.0
SUSE LINUX 10.1
openSUSE 10.2
SUSE SLES 9
Novell Linux Desktop 9
Open Enterprise Server
Novell Linux POS 9
SUSE SLED 10
SUSE SLES 10
Vulnerability Type: remote denial of service
Severity (1-10): 5
SUSE Default Package: yes
Cross-References: CVE-2007-0452 CVE-2007-0453 CVE-2007-0454

Content of This Advisory:
1) Security Vulnerability Resolved:
samba remote denial of service
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

The Samba daemon was affected by a security problem, where a
logic error in the deferred open code can lead to an infinite loop
(CVE-2007-0452).

This problem could be used by remote authenticated attackers that
have access to the samba daemon.

Two other problems fixed in the upstream samba security release
that do not affect the SUSE Samba version:

- CVE-2007-0454: A format string problem in AFS ACL handling.
None of our shipping Samba versions have this option compiled in.

- CVE-2007-0453: A buffer overflow in nss_winbind on Solaris.
Linux is generally not affected by this problem.

2) Solution or Work-Around

There is no known workaround, please install the update packages.

3) Special Instructions and Notes

None.

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:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/samba-3.0.23d-19.2.i586.rpm
6b4cb2859d1321648fd46c30a6cfd343
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/samba-client-3.0.23d-19.2.i586.rpm
b168ff8f07a792bf6fb66a91c893ae33
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/samba-winbind-3.0.23d-19.2.i586.rpm
23e180e09af077fd64b35d8154d414c6

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/samba-3.0.22-13.27.i586.rpm
898c1eb0d0d4f1c806ce7fb8907753d7
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/samba-client-3.0.22-13.27.i586.rpm
d4f4efa7488aa12edd8f9ac2074fbbc3
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/samba-winbind-3.0.22-13.27.i586.rpm
f2d11fdea4fa460cfb5bda4e20fc5e86

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/samba-3.0.20b-3.8.i586.rpm
ce7bcec67ee32a5415d4cb5907ec0372

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/samba-3.0.13-1.6.i586.rpm
7cc438d1cc0e8d4f479844bfccc8f698

Power PC Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/samba-3.0.23d-19.2.ppc.rpm
d3b20aff8d493b48741b160c223bd268
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/samba-client-3.0.23d-19.2.ppc.rpm
790670189510dce128dca2f3f32f2b9c
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/samba-winbind-3.0.23d-19.2.ppc.rpm
43815e4efd08eae9e26242be281ba2fe

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/samba-3.0.22-13.27.ppc.rpm
a2d2ce421081a74258c5328a5a432629
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/samba-client-3.0.22-13.27.ppc.rpm
f86d3c623aadc34f1f64f173108f9c4b
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/samba-winbind-3.0.22-13.27.ppc.rpm
b95e5643763b4f172adec030fa9033be

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/samba-3.0.20b-3.8.ppc.rpm
8badc1520efe79ac17b053be83648e46

x86-64 Platform:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-3.0.23d-19.2.x86_64.rpm
a23ee65e112c499b91af6c00ab068efa
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-32bit-3.0.23d-19.2.x86_64.rpm
09785d54c57f6da705acfa0f911b0b8d
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-client-3.0.23d-19.2.x86_64.rpm
c4b7be8c144842fd6947bfa7bf56891a
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-client-32bit-3.0.23d-19.2.x86_64.rpm
5a474e36e2f20b086138fb1d7a225942
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-winbind-3.0.23d-19.2.x86_64.rpm
c3ebad542ec53b71d3641310f796b430
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-winbind-32bit-3.0.23d-19.2.x86_64.rpm
1d0480ab089c3be84de54bc6bad71910

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-3.0.22-13.27.x86_64.rpm
be6125ae205f2274150a29a4c251e8c0
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-32bit-3.0.22-13.27.x86_64.rpm
6bd817cbdf52fd2e4ff8257442ba1d60
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-client-3.0.22-13.27.x86_64.rpm
5cd72ad1de6b29173a9e3d23a1012b2c
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-client-32bit-3.0.22-13.27.x86_64.rpm
a6509bd2aa7b9c7421e4d1777ce2bba3
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-winbind-3.0.22-13.27.x86_64.rpm
0d3cb4f0c3bcef1a5569dd5d72b3c73b
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-winbind-32bit-3.0.22-13.27.x86_64.rpm
e9dbf740b218735e385a348524d31108

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/samba-3.0.20b-3.8.x86_64.rpm
f0ad5468ce42ff2631e9a6b3231010c1

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/samba-3.0.13-1.6.x86_64.rpm
fbd0c2a208fd91da991e53b54fb1a57d

Sources:

openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/samba-3.0.23d-19.2.src.rpm
54d62f5dad95981f0ae894619d0f06ea

SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/samba-3.0.22-13.27.src.rpm
8b2e1c4b662fc43fa03fe1ba60342c00

SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/samba-3.0.20b-3.8.src.rpm
9217074c11c43c30860be28b33f034dd

SUSE LINUX 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/samba-3.0.13-1.6.src.rpm
117006e9e50e888e4848aa320e88b18d

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

SUSE SLES 10
http://support.novell.com/techcenter/psdb/1324cf66bf45968bebbd721ece5f92c7.html

SUSE SLED 10
http://support.novell.com/techcenter/psdb/1324cf66bf45968bebbd721ece5f92c7.html

Open Enterprise Server
http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

Novell Linux POS 9
http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

Novell Linux Desktop 9
http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

SUSE SLES 9
http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

______________________________________________________________________________

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

See SUSE Security 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:

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

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>.

=====================================================================
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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