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SuSE alert SUSE-SR:2006:002 (wine cups sudo)

From:  Marcus Meissner <meissner@suse.de>
To:  suse-security-announce@suse.com
Subject:  [suse-security-announce] SUSE Security Summary Report SUSE-SR:2006:002
Date:  Fri, 20 Jan 2006 16:08:01 +0100

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Summary Report Announcement ID: SUSE-SR:2006:002 Date: Fri, 20 Jan 2006 15:00:00 +0000 Cross-References: CVE-2006-0106, CVE-2005-3191, CVE-2005-3192 CVE-2005-2959, CVE-2006-0151, CVE-2005-4158 Content of this advisory: 1) Solved Security Vulnerabilities: - wine WMF SETABORTPROC problem - cups pdftops various xpdf problems - sudo environment variable problems 2) Pending Vulnerabilities, Solutions, and Work-Arounds: - various kernel security issues 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. - wine WMF SETABORTPROC problem The Windows Metafile format allowed execution code by including a Escape(SETABORTPROC) record. The free Windows Emulator WINE was also affected by this problem. If an attacker could convince you to open/view a prepared metafile he would be able to execute code. This is tracked by the Mitre CVE ID CVE-2006-0106. SUSE Linux 9.1 up to 10.0 are affected by this problem. - cups pdftops various xpdf problems Integer overflows in the CUPS helper application pdftops (that contains xpdf code) potentially allowed to execute arbitrary code via specially crafted PDF files The PDF issues are tracked by CVE-2005-3191, CVE-2005-3192, all SUSE Linux based products were affected. - sudo environment variable problems The fixes for CVE-2005-2959, CVE-2006-0151, and CVE-2005-4158 extend the sudo internal environment variable blacklist to prevent interpretation of those variables by the bash shell. In our opinion a blacklist based approach to improve security is doomed to fail. If you use sudo to grant limited super user access to regular users you should rather configure sudo to clean the entire environment by setting the options env_reset and always_set_home. We will therefore not release security updates for the sole purpose of extending the blacklist. Further products will use the env_reset and always_set_home options. ______________________________________________________________________________ 2) Pending Vulnerabilities, Solutions, and Work-Arounds - Kernel security issues Various kernel security issues are known and we will start preparing updates soon. The next kernel update will probably be available mid of February. ______________________________________________________________________________ 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. 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