-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement ID: SUSE-SA:2008:051 Date: Tue, 21 Oct 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: local privilege escalation Severity (1-10): 6 SUSE Default Package: yes Cross-References: CVE-2007-6716, CVE-2008-1514, CVE-2008-3525 CVE-2008-3528, CVE-2008-4210 Content of This Advisory: 1) Security Vulnerability Resolved: Linux kernel security problems 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 This kernel update for SUSE Linux Enterprise 10 Service Pack 2 fixes various bugs and some security problems: CVE-2008-4210: When creating a file, open()/creat() allowed the setgid bit to be set via the mode argument even when, due to the bsdgroups mount option or the file being created in a setgid directory, the new file's group is one which the user is not a member of. The local attacker could then use ftruncate() and memory-mapped I/O to turn the new file into an arbitrary binary and thus gain the privileges of this group, since these operations do not clear the setgid bit." CVE-2008-3528: The ext[234] filesystem code fails to properly handle corrupted data structures. With a mounted filesystem image or partition that have corrupted dir->i_size and dir->i_blocks, a user performing either a read or write operation on the mounted image or partition can lead to a possible denial of service by spamming the logfile. CVE-2008-1514: The S/390 ptrace code allowed local users to cause a denial of service (kernel panic) via the user-area-padding test from the ptrace test suite in 31-bit mode, which triggers an invalid dereference. CVE-2007-6716: fs/direct-io.c in the dio subsystem in the Linux kernel did not properly zero out the dio struct, which allows local users to cause a denial of service (OOPS), as demonstrated by a certain fio test. CVE-2008-3525: Added missing capability checks in sbni_ioctl(). Also OCFS2 was updated to version v1.4.1-1. The full amount of changes can be reviewed in the RPM changelog. 2) Solution or Work-Around There is no known workaround, please install the update packages. 3) Special Instructions and Notes Please restart the computer after installing 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 <file.rpm> to apply the update, replacing <file.rpm> 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&keywords=51097d5d388421c6b5752d422c0c672a SUSE Linux Enterprise 10 SP2 DEBUGINFO for IBM zSeries 64bit http://download.novell.com/index.jsp?search=Search&keywords=71c0e4af01f2f5e4bd0f9f51370dcde8 SUSE Linux Enterprise 10 SP2 DEBUGINFO for IBM POWER http://download.novell.com/index.jsp?search=Search&keywords=112e2d60fade685e1d5878ae21ce2bc0 SUSE Linux Enterprise 10 SP2 DEBUGINFO for IPF http://download.novell.com/index.jsp?search=Search&keywords=f8a0975219658ddcd214ea7538810b92 SUSE Linux Enterprise Server 10 SP2 http://download.novell.com/index.jsp?search=Search&keywords=51097d5d388421c6b5752d422c0c672a http://download.novell.com/index.jsp?search=Search&keywords=71c0e4af01f2f5e4bd0f9f51370dcde8 http://download.novell.com/index.jsp?search=Search&keywords=112e2d60fade685e1d5878ae21ce2bc0 http://download.novell.com/index.jsp?search=Search&keywords=f8a0975219658ddcd214ea7538810b92 http://download.novell.com/index.jsp?search=Search&keywords=1f60f6114b5878d38c45087bbe9d5f99 SLE SDK 10 SP2 http://download.novell.com/index.jsp?search=Search&keywords=51097d5d388421c6b5752d422c0c672a http://download.novell.com/index.jsp?search=Search&keywords=112e2d60fade685e1d5878ae21ce2bc0 http://download.novell.com/index.jsp?search=Search&keywords=f8a0975219658ddcd214ea7538810b92 http://download.novell.com/index.jsp?search=Search&keywords=1f60f6114b5878d38c45087bbe9d5f99 SUSE Linux Enterprise 10 SP2 DEBUGINFO http://download.novell.com/index.jsp?search=Search&keywords=51097d5d388421c6b5752d422c0c672a http://download.novell.com/index.jsp?search=Search&keywords=112e2d60fade685e1d5878ae21ce2bc0 http://download.novell.com/index.jsp?search=Search&keywords=f8a0975219658ddcd214ea7538810b92 http://download.novell.com/index.jsp?search=Search&keywords=1f60f6114b5878d38c45087bbe9d5f99 SUSE Linux Enterprise Desktop 10 SP2 http://download.novell.com/index.jsp?search=Search&keywords=51097d5d388421c6b5752d422c0c672a http://download.novell.com/index.jsp?search=Search&keywords=1f60f6114b5878d38c45087bbe9d5f99 SUSE Linux Enterprise Desktop 10 SP2 for x86 http://download.novell.com/index.jsp?search=Search&keywords=1f60f6114b5878d38c45087bbe9d5f99 ______________________________________________________________________________ 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 <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 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 <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 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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