-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Summary Report Announcement ID: SUSE-SR:2007:020 Date: Fri, 12 Oct 2007 17:00:00 +0000 Cross-References: CVE-2007-2958, CVE-2007-4727, CVE-2007-4851 CVE-2007-4993, CVE-2007-5135, CVE-2007-5195 CVE-2007-5196, CVE-2007-5200 Content of this advisory: 1) Solved Security Vulnerabilities: - TK GIF image loader overflow - openssl off-by-one overflow - hugin temporary filename - not affected by Xen virtual pygrub escape problem - lighttpd buffer overflow - novell-groupwise-gwclient SSL problems - sylpheed-claws format string problem 2) Pending Vulnerabilities, Solutions, and Work-Arounds: none 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. - Tk GIF image loader overflow Updated Tk packages were released to fix a buffer overflow that occurs while processing interlaced/animated GIF images. (CVE-2007-4851) The bug was found by SUSE developer Reinhard Max and could be used to execute code remotely if Tk is used in any way to display remotely supplied GIFs. Tk was updated for all SUSE Linux based products on October 8th. - openssl off-by-one overflow OpenSSL was updated to fix a off-by-one buffer overflow in function SSL_get_shared_ciphers(). This vulnerability potentially allows remote code execution; depending on memory layout of the process. (CVE-2007-5135) Updates were released for all affected SUSE Linux products on 9th October. - hugin temporary filename hugin was updated to disable the use of a fixed temporary file. (CVE-2007-5200) hugin was updated for openSUSE 10.2 and 10.3, earlier products did not include hugin. - Not affected by Xen virtual pygrub escape problem A possibility for a Xen domU guest to escape from its virtualization container was reported, with Mitre ID CVE-2007-4993. SUSE is not using pygrub and so is NOT AFFECTED by this problem. (Note: we usually do not publish "not affected" notes, but for this problem we had several queries.) - lighttpd buffer overflow This update fixes a buffer overflow in the fcgi_env_add() function. Under some circumstances this bug allows remote code execution. (CVE-2007-4727) All affected distributions were updated. - novell-groupwise-gwclient SSL problems A security vulnerability was found in the Groupwise client system that allows a malicious user to intercept authentication credentials through a 'man in the middle' attack. This issue is tracked by the Mitre CVE IDs CVE-2007-5195, CVE-2007-5196. The novell-groupwise-client package is only contained in SUSE Linux Enterprise Desktop 10 and was updated there. - sylpheed-claws format string problem A format string bug in the inc_put_error() function of Sylpheed Claws was fixed. This bug is triggered when error messages from the POP3 server are displayed and can be exploited remotely to execute arbitrary code. (CVE-2007-2958) SUSE Linux 10.0, 10.1, and openSUSE 10.2 and 10.3 are affected. ______________________________________________________________________________ 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. 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