-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: kdebase3-kdm Announcement ID: SUSE-SA:2006:039 Date: Mon, 03 Jul 2006 16:00:00 +0000 Affected Products: Novell Linux Desktop 9 SUSE LINUX 10.1 SUSE LINUX 10.0 SUSE LINUX 9.3 SUSE LINUX 9.2 SUSE LINUX 9.1 SUSE SLES 9 Vulnerability Type: local privilege escalation Severity (1-10): 7 SUSE Default Package: yes Cross-References: CVE-2006-2449 Content of This Advisory: 1) Security Vulnerability Resolved: KDM local information exposure 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 KDE Display Manager KDM stores the type of the previously used session in the user's home directory. By using a symlink a local attacker could trick kdm into also storing content of files that are normally not accessible by users, like for instance /etc/shadow. This problem is tracked by Mitre CVE ID CVE-2006-2449 and was found by Ludwig Nussel of the SUSE Security Team. 2) Solution or Work-Around There is no known workaround, please install the update packages. 3) Special Instructions and Notes Please restart all running instances of kdm after the update. 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 to apply the update, replacing with the filename of the downloaded RPM package. x86 Platform: SUSE LINUX 10.1: ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/kdebase3-kdm-3.5.1-69.23.i586.rpm 6b51aa1795da71a71119cf6aa6820153 SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/kdebase3-kdm-3.4.2-27.4.i586.rpm 5b36c9bc7cee1cdde72d7ad70860d596 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/kdebase3-kdm-3.4.0-28.4.i586.rpm f5a7cc054bf5223057e36aeef4bb2e55 SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/kdebase3-kdm-3.3.0-29.5.i586.rpm e3b919080e181d5854526410675e116e SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kdebase3-kdm-3.2.1-68.53.i586.rpm 247b449b8b6142ff9ee413acbd4efc57 Power PC Platform: SUSE LINUX 10.1: ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/kdebase3-kdm-3.5.1-69.23.ppc.rpm 6db4614fe15867245801e17c72e9c8bd SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/kdebase3-kdm-3.4.2-27.4.ppc.rpm 6366c0536eb41220bd1686513fe6e2c1 x86-64 Platform: SUSE LINUX 10.1: ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/kdebase3-kdm-3.5.1-69.23.x86_64.rpm 6c31f10bd18a53f585a1cc6ac45ccbe4 SUSE LINUX 10.0: ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/kdebase3-kdm-3.4.2-27.4.x86_64.rpm f606da7a6561ec09fbbb70a467da1790 SUSE LINUX 9.3: ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/kdebase3-kdm-3.4.0-28.4.x86_64.rpm fece9cedbe4033094c62124d85fe37cd SUSE LINUX 9.2: ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/kdebase3-kdm-3.3.0-29.5.x86_64.rpm 421cfc9dcacc8d1a59009cc849182297 SUSE LINUX 9.1: ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kdebase3-kdm-3.2.1-68.53.x86_64.rpm 3456c10099c7c075ef2653e750f0ad72 Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: Novell Linux Desktop 9 http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/c43d8bdde8ba418c... SUSE SLES 9 http://support.novell.com/cgi-bin/search/searchtid.cgi?psdb/292ea0b25bd919ec... ______________________________________________________________________________ 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 " 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 to verify the signature of the package, replacing 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 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: 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-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 . For general information or the frequently asked questions (FAQ), send mail to or . ===================================================================== SUSE's security contact is or . The 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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