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SUSE Security Summary Report

Announcement ID: SUSE-SR:2008:009 Date: Fri, 11 Apr 2008 15:00:00 +0000 Cross-References: CVE-2008-1483, CVE-2008-1657

Content of this advisory: 1) Solved Security Vulnerabilities: - openssh X access leakage and ForceCommand bypass - opera 9.27 security update 2) Pending Vulnerabilities, Solutions, and Work-Arounds: None listed this week. 3) Authenticity Verification and Additional Information

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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 X access leakage and ForceCommand bypass

OpenSSH was updated to fix two security problems potentially exploitable by local users.

- A flaw in the X forwarding code of openssh allowed local malicious users to steal the X access credentials of other users (CVE-2008-1483).

- Due to another flaw users could bypass the option "ForceCommand" (CVE-2008-1657).

- Opera 9.27 security update

The web-browser Opera was updated to version 9.27 to fix various security issues.

A flaw in the image processing routines could crash opera. Attackers could potentially even exploit that to execute code.

Opera was updated on SUSE Linux 10.1, openSUSE 10.2 and 10.3. ______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

None listed this week. ______________________________________________________________________________

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:

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.

opensuse-security-announce@opensuse.org - SUSE's announce-only mailing list. Only SUSE's security announcements are sent to this list. To subscribe, send an e-mail to opensuse-security-announce+subscribe@opensuse.org.

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