-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement ID: SUSE-SA:2008:035 Date: Mon, 21 Jul 2008 10:00:00 +0000 Affected Products: SLE SDK 10 SP2 SUSE Linux Enterprise Desktop 10 SP2 SUSE Linux Enterprise 10 SP2 DEBUGINFO SUSE Linux Enterprise Server 10 SP2 Vulnerability Type: remote denial of service Severity (1-10): 9 SUSE Default Package: yes Cross-References: CVE-2008-1615, CVE-2008-1669, CVE-2008-1673 CVE-2008-2372, CVE-2008-2812, CVE-2008-2931 Content of This Advisory: 1) Security Vulnerability Resolved: Linux kernel 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 Linux kernel on SUSE Linux Enterprise 10 Service Pack 2 and fixes the following security problems: The version of the kernel is 2.6.16.60-0.25. CVE-2008-1615: On x86_64 a denial of service attack could be used by local attackers to immediately panic / crash the machine. CVE-2008-1669: Fixed a SMP ordering problem in fcntl_setlk could potentially allow local attackers to execute code by timing file locking. CVE-2008-2372: Fixed a resource starvation problem in the handling of ZERO mmap pages. CVE-2008-1673: The asn1 implementation in (a) the Linux kernel, as used in the cifs and ip_nat_snmp_basic modules does not properly validate length values during decoding of ASN.1 BER data, which allows remote attackers to cause a denial of service (crash) or execute arbitrary code via (1) a length greater than the working buffer, which can lead to an unspecified overflow; (2) an oid length of zero, which can lead to an off-by-one error; or (3) an indefinite length for a primitive encoding. CVE-2008-2812: Various tty / serial devices did not check functionpointers for NULL before calling them, leading to potential crashes or code execution. The devices affected are usually only accessible by the root user though. CVE-2008-2931: A missing permission check in mount changing was added which could have been used by local attackers to change the mountdirectory. Additionaly a very large number of bugs was fixed. Details can be found in the RPM changelog of the included packages. OCFS2 has been upgraded to the 1.4.1 release: - Endian fixes - Use slab caches for DLM objects - Export DLM state info to debugfs - Avoid ENOSPC in rare conditions when free inodes are reserved by other nodes - Error handling fix in ocfs2_start_walk_page_trans() - Cleanup lockres printing - Allow merging of extents - Fix to allow changing permissions of symlinks - Merged local fixes upstream (no code change) 2) Solution or Work-Around There is no known workaround, please install the update packages. 3) Special Instructions and Notes Please reboot the machine after installing the updated kernel. 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. Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: SUSE Linux Enterprise Desktop 10 SP2 for AMD64 and Intel EM64T http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=e71e059b0b1b921d1a3b888f17f527a2 SUSE Linux Enterprise 10 SP2 DEBUGINFO for IBM zSeries 64bit http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=8786e294e782a592036098e2736b33af SUSE Linux Enterprise 10 SP2 DEBUGINFO for IBM POWER http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=233a5910a88f0bf42279ffd84e4a5140 SUSE Linux Enterprise 10 SP2 DEBUGINFO for IPF http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=6294454605fd9887f3377735a3c1b830 SUSE Linux Enterprise Server 10 SP2 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=e71e059b0b1b921d1a3b888f17f527a2 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=8786e294e782a592036098e2736b33af http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=233a5910a88f0bf42279ffd84e4a5140 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=6294454605fd9887f3377735a3c1b830 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=dd4ff74b273d12c2372f78981ed28f80 SLE SDK 10 SP2 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=e71e059b0b1b921d1a3b888f17f527a2 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=233a5910a88f0bf42279ffd84e4a5140 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=6294454605fd9887f3377735a3c1b830 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=dd4ff74b273d12c2372f78981ed28f80 SUSE Linux Enterprise 10 SP2 DEBUGINFO http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=e71e059b0b1b921d1a3b888f17f527a2 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=233a5910a88f0bf42279ffd84e4a5140 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=6294454605fd9887f3377735a3c1b830 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=dd4ff74b273d12c2372f78981ed28f80 SUSE Linux Enterprise Desktop 10 SP2 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=e71e059b0b1b921d1a3b888f17f527a2 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=dd4ff74b273d12c2372f78981ed28f80 SUSE Linux Enterprise Desktop 10 SP2 for x86 http://download.novell.com/index.jsp?search=Search&set_restricted=true&keywords=dd4ff74b273d12c2372f78981ed28f80 ______________________________________________________________________________ 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. 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. - 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-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 . ===================================================================== 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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