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______________________________________________________________________________

SUSE Security Summary Report

Announcement ID: SUSE-SR:2006:024
Date: Fri, 06 Oct 2006 14:00:00 +0000
Cross-References: CVE-2006-4924,CVE-2006-4925
CVE-2006-2937,CVE-2006-2940
CVE-2006-3738,CVE-2006-4343
CVE-2006-4095,CVE-2006-4096

Content of this advisory:
1) Solved Security Vulnerabilities:
- openssh: remote denial of service (CVE-2006-4924,CVE-2006-4925)
- openssl: remote denial of service (CVE-2006-2937,CVE-2006-2940,
CVE-2006-3738,CVE-2006-4343)
- bind9: remote denial of service (CVE-2006-4095,CVE-2006-4096)
2) Pending Vulnerabilities, Solutions, and Work-Arounds:
- mono
- openssl
- compat-openssl
- php 4 and 5
3) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Solved Security Vulnerabilities

To avoid flooding mailing lists with SUSE Security Announcements for minor
issues, SUSE Security releases weekly summary reports for the low profile
vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums
or download URLs like the SUSE Security Announcements that are released for
more severe vulnerabilities.

Fixed packages for the following incidents are already available on our FTP
server and via the YaST Online Update.

- openssh: remote denial of service
Some denial of service problems have been fixed in OpenSSH which could
be used to cause lots of CPU consumption on a remote openssh server.
(CVE-2006-4924)
Additionaly a remote attacker that is able to inject network traffic
could cause a client connection to close. (CVE-2006-4925)

- openssl: remote denial of service
A buffer overflow within the SSL_get_shared_ciphers() function and
a DoS condition known as "parasitic public keys" have been fixed. The
later problem allowed attackers to trick the OpenSSL engine to spend an
extraordinary amount of time to process public keys.
The following CAN numbers have been assigned: CVE-2006-2937,
CVE-2006-2940, CVE-2006-3738 and CVE-2006-4343.

- bind9: rmote denial of service
This update fixes two vulnerabilities in bind that allow a remote
attacker to trigger a denial-of-service attack.i
All packages have been released now.
(VU#697164/CVE-2006-4096, VU#915404/CVE-2006-4095)

______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

- mono
Sebastian Krahmer of the SuSE Security-Team found a local privilege
escalation bug in a Mono class. New packages will be released as soon
as QA testing finished successfully.

- compat-openssl*
The compat-openssl packages are vulnerable to CVE-2006-4343, CVE-2006-
3738, CVE-2006-2937, CVE-2006-2940, CVE-2006-4339. New packages will
be released soon.

- openssl
The patch for CVE-2006-2940 introduced another denial of service
condition. New packages will be available very soon.

- php 4 and 5
Updates for various vulnerabilities in php 4 and 5 will be released
soon.

______________________________________________________________________________

3) 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 containing 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 integrity of a
package needs to be verified to ensure that it has not been tampered with.

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 included at the end of this
announcement.

- 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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