[security-announce] SUSE Security Announcement: Linux kernel (SUSE-SA:2010:031)
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement ID: SUSE-SA:2010:031 Date: Tue, 20 Jul 2010 11:00:00 +0000 Affected Products: openSUSE 11.1 SUSE Linux Enterprise High Availability Extension 11 SUSE Linux Enterprise Desktop 11 SUSE Linux Enterprise Server 11 Vulnerability Type: remote denial of service CVSS v2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C) SUSE Default Package: yes Cross-References: CVE-2009-1389, CVE-2009-4537, CVE-2010-1087 CVE-2010-1162, CVE-2010-1437, CVE-2010-1446 CVE-2010-1641, CVE-2010-1643 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 The SUSE Linux Enterprise 11 GA Kernel was updated to 2.6.27.48 fixing various bugs and security issues. CVE-2010-1641: The do_gfs2_set_flags function in fs/gfs2/file.c in the Linux kernel does not verify the ownership of a file, which allows local users to bypass intended access restrictions via a SETFLAGS ioctl request. CVE-2010-1087: The nfs_wait_on_request function in fs/nfs/pagelist.c in the Linux kernel allows attackers to cause a denial of service (Oops) via unknown vectors related to truncating a file and an operation that is not interruptible. CVE-2010-1643: mm/shmem.c in the Linux kernel, when strict overcommit is enabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. CVE-2010-1437: Race condition in the find_keyring_by_name function in security/keys/keyring.c in the Linux kernel allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via keyctl session commands that trigger access to a dead keyring that is undergoing deletion by the key_cleanup function. CVE-2010-1446: arch/1/mm/fsl_booke_mmu.c in KGDB in the Linux kernel, when running on PowerPC, does not properly perform a security check for access to a kernel page, which allows local users to overwrite arbitrary kernel memory, related to Fsl booke. CVE-2010-1162: The release_one_tty function in drivers/char/tty_io.c in the Linux kernel omits certain required calls to the put_pid function, which has unspecified impact and local attack vectors. CVE-2009-4537: drivers/net/r8169.c in the r8169 driver in the Linux kernel does not properly check the size of an Ethernet frame that exceeds the MTU, which allows remote attackers to (1) cause a denial of service (temporary network outage) via a packet with a crafted size, in conjunction with certain packets containing A characters and certain packets containing E characters; or (2) cause a denial of service (system crash) via a packet with a crafted size, in conjunction with certain packets containing '0' characters, related to the value of the status register and erroneous behavior associated with the RxMaxSize register. NOTE: this vulnerability exists because of an incorrect fix for CVE-2009-1389. Code execution might be possible. 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 (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. x86 Platform: openSUSE 11.1: http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-2.6.27.48-0.1... http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-base-2.6.27.4... http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-extra-2.6.27.... http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-2.6.27.48-0... http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-base-2.6.27... http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-extra-2.6.2... http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-2.6.27.48-0.1.1... http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-base-2.6.27.48-... http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-extra-2.6.27.48... http://download.opensuse.org/update/11.1/rpm/i586/kernel-source-2.6.27.48-0.... http://download.opensuse.org/update/11.1/rpm/i586/kernel-syms-2.6.27.48-0.1.... http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-2.6.27.48-0.1... http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-base-2.6.27.4... http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-extra-2.6.27.... http://download.opensuse.org/update/11.1/rpm/i586/kernel-vanilla-2.6.27.48-0... http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-2.6.27.48-0.1.1... http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-base-2.6.27.48-... http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-extra-2.6.27.48... Platform Independent: openSUSE 11.1: http://download.opensuse.org/update/11.1/rpm/noarch/kernel-docs-2.6.3-3.13.1... Power PC Platform: openSUSE 11.1: http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-2.6.27.48-0.... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-base-2.6.27.... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-extra-2.6.27... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-kdump-2.6.27.48-0.1.... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-2.6.27.48-0.1.... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-base-2.6.27.48... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-extra-2.6.27.4... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ps3-2.6.27.48-0.1.1.... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-source-2.6.27.48-0.1... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-syms-2.6.27.48-0.1.1... http://download.opensuse.org/update/11.1/rpm/ppc/kernel-vanilla-2.6.27.48-0.... x86-64 Platform: openSUSE 11.1: http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-2.6.27.48-0... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-base-2.6.27... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-extra-2.6.2... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-2.6.27.48... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-base-2.6.... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-extra-2.6... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-source-2.6.27.48-... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-syms-2.6.27.48-0.... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-2.6.27.48-0... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-base-2.6.27... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-extra-2.6.2... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-vanilla-2.6.27.48... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-2.6.27.48-0.1... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-base-2.6.27.4... http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-extra-2.6.27.... Sources: openSUSE 11.1: http://download.opensuse.org/update/11.1/rpm/src/kernel-debug-2.6.27.48-0.1.... http://download.opensuse.org/update/11.1/rpm/src/kernel-default-2.6.27.48-0.... http://download.opensuse.org/update/11.1/rpm/src/kernel-docs-2.6.3-3.13.109.... http://download.opensuse.org/update/11.1/rpm/src/kernel-kdump-2.6.27.48-0.1.... http://download.opensuse.org/update/11.1/rpm/src/kernel-pae-2.6.27.48-0.1.1.... http://download.opensuse.org/update/11.1/rpm/src/kernel-ppc64-2.6.27.48-0.1.... http://download.opensuse.org/update/11.1/rpm/src/kernel-ps3-2.6.27.48-0.1.1.... http://download.opensuse.org/update/11.1/rpm/src/kernel-source-2.6.27.48-0.1... http://download.opensuse.org/update/11.1/rpm/src/kernel-syms-2.6.27.48-0.1.1... http://download.opensuse.org/update/11.1/rpm/src/kernel-trace-2.6.27.48-0.1.... http://download.opensuse.org/update/11.1/rpm/src/kernel-vanilla-2.6.27.48-0.... http://download.opensuse.org/update/11.1/rpm/src/kernel-xen-2.6.27.48-0.1.1.... Our maintenance customers are notified individually. The packages are offered for installation from the maintenance web: SLE 11 SERVER Unsupported Extras http://download.novell.com/patch/finder/?keywords=7c255bf89525f242ab9deddcf1... http://download.novell.com/patch/finder/?keywords=34efb3de15e5405c1817c28702... http://download.novell.com/patch/finder/?keywords=6a5b519e1125164aefd647adb3... http://download.novell.com/patch/finder/?keywords=3c314aa8e3d1c4878e06108d76... http://download.novell.com/patch/finder/?keywords=1a1e84bdf877ca5c38ecac3616... SUSE Linux Enterprise Server 11 http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b6... http://download.novell.com/patch/finder/?keywords=f73f22d4b713e9a7674cc8c4ee... http://download.novell.com/patch/finder/?keywords=2959a2080579b86be5f71889c2... http://download.novell.com/patch/finder/?keywords=99ed0d9e003dfe8866db7105d4... http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44b... SUSE Linux Enterprise Desktop 11 http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b6... http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44b... SUSE Linux Enterprise High Availability Extension 11 http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b6... http://download.novell.com/patch/finder/?keywords=f73f22d4b713e9a7674cc8c4ee... http://download.novell.com/patch/finder/?keywords=2959a2080579b86be5f71889c2... http://download.novell.com/patch/finder/?keywords=99ed0d9e003dfe8866db7105d4... http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44b... ______________________________________________________________________________ 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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Marcus Meissner