-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement ID: SUSE-SA:2011:026 Date: Fri, 20 May 2011 10:00:00 +0000 Affected Products: SUSE Linux Enterprise Desktop 10 SP4 SLE SDK 10 SP4 SUSE Linux Enterprise Server 10 SP4 Vulnerability Type: remote denial of service CVSS v2 Base Score: 7.9 (AV:A/AC:M/Au:N/C:C/I:C/A:C) SUSE Default Package: no Cross-References: CVE-2010-0008, CVE-2010-4251, CVE-2011-0191 CVE-2011-1010, CVE-2011-1012, CVE-2011-1016 CVE-2011-1017, CVE-2011-1160, CVE-2011-1163 CVE-2011-1180, CVE-2011-1182, CVE-2011-1476 CVE-2011-1477, CVE-2011-1493, CVE-2011-1573 CVE-2011-1577, CVE-2011-1585 Content of This Advisory: 1) Security Vulnerability Resolved: Linux kernel security update 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 the SUSE Linux Enterprise 10 SP4 kernel fixes several security issues and bugs. Following security issues were fixed: CVE-2011-1017,CVE-2011-1012: The code for evaluating LDM partitions (in fs/partitions/ldm.c) contained bugs that could crash the kernel for certain corrupted LDM partitions. CVE-2011-1573: Bounds checking was missing in AARESOLVE_OFFSET, which allowed local attackers to overwrite kernel memory and so escalate privileges or crash the kernel. CVE-2011-1585: When using a setuid root mount.cifs, local users could hijack password protected mounted CIFS shares of other local users. CVE-2011-1160: Kernel information via the TPM devices could by used by local attackers to read kernel memory. CVE-2011-1577: The Linux kernel automatically evaluated partition tables of storage devices. The code for evaluating EFI GUID partitions (in fs/partitions/efi.c) contained a bug that causes a kernel oops on certain corrupted GUID partition tables, which might be used by local attackers to crash the kernel or potentially execute code. CVE-2011-1180: In the IrDA module, length fields provided by a peer for names and attributes may be longer than the destination array sizes and were not checked, this allowed local attackers (close to the irda port) to potentially corrupt memory. CVE-2010-4251: A system out of memory condition (denial of service) could be triggered with a large socket backlog, exploitable by local users. This has been addressed by backlog limiting. CVE-2011-1016: The Radeon GPU drivers in the Linux kernel did not properly validate data related to the AA resolve registers, which allowed local users to write to arbitrary memory locations associated with (1) Video RAM (aka VRAM) or (2) the Graphics Translation Table (GTT) via crafted values. CVE-2011-1493: When parsing the FAC_NATIONAL_DIGIS facilities field, it was possible for a remote host to provide more digipeaters than expected, resulting in heap corruption. CVE-2011-1182: Local attackers could send signals to their programs that looked like coming from the kernel, potentially gaining privileges in the context of setuid programs. CVE-2011-1010: The code for evaluating Mac partitions (in fs/partitions/mac.c) contained a bug that could crash the kernel for certain corrupted Mac partitions. CVE-2011-1163: The code for evaluating OSF partitions (in fs/partitions/osf.c) contained a bug that leaks data from kernel heap memory to userspace for certain corrupted OSF partitions. CVE-2011-1476: Specially crafted requests may be written to /dev/sequencer resulting in an underflow when calculating a size for a copy_from_user() operation in the driver for MIDI interfaces. On x86, this just returns an error, but it could have caused memory corruption on other architectures. Other malformed requests could have resulted in the use of uninitialized variables. CVE-2011-1477: Due to a failure to validate user-supplied indexes in the driver for Yamaha YM3812 and OPL-3 chips, a specially crafted ioctl request could have been sent to /dev/sequencer, resulting in reading and writing beyond the bounds of heap buffers, and potentially allowing privilege escalation. CVE-2011-0191: A information leak in the XFS geometry calls could be used by local attackers to gain access to kernel information. CVE-2010-0008: The sctp_rcv_ootb function in the SCTP implementation in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop) via (1) an Out Of The Blue (OOTB) chunk or (2) a chunk of zero length. 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 update. 4) Package Location and Checksums The preferred method for installing security updates is to use the YaST "Online Update" module or the "zypper" commandline tool. The package and patch management stack will detect which updates are required and automatically perform 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 SP4 for AMD64 and Intel EM64T http://download.novell.com/patch/finder/?keywords=754d5abd3666eec2fbee9b2251... SUSE Linux Enterprise Server 10 SP4 http://download.novell.com/patch/finder/?keywords=754d5abd3666eec2fbee9b2251... http://download.novell.com/patch/finder/?keywords=937e57e402a3934a553aa1e31a... http://download.novell.com/patch/finder/?keywords=a2b86e88ca68bad088ef7137bd... http://download.novell.com/patch/finder/?keywords=ebcb1b92f0fcbda4bb9c9cbf0c... http://download.novell.com/patch/finder/?keywords=c44206b33270f7a4715bc2a205... SLE SDK 10 SP4 http://download.novell.com/patch/finder/?keywords=754d5abd3666eec2fbee9b2251... http://download.novell.com/patch/finder/?keywords=a2b86e88ca68bad088ef7137bd... http://download.novell.com/patch/finder/?keywords=ebcb1b92f0fcbda4bb9c9cbf0c... http://download.novell.com/patch/finder/?keywords=c44206b33270f7a4715bc2a205... SUSE Linux Enterprise Desktop 10 SP4 http://download.novell.com/patch/finder/?keywords=754d5abd3666eec2fbee9b2251... http://download.novell.com/patch/finder/?keywords=c44206b33270f7a4715bc2a205... SUSE Linux Enterprise Desktop 10 SP4 for x86 http://download.novell.com/patch/finder/?keywords=c44206b33270f7a4715bc2a205... ______________________________________________________________________________ 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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