-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement ID: SUSE-SA:2008:030 Date: Fri, 20 Jun 2008 14:00:00 +0000 Affected Products: openSUSE 10.2 openSUSE 10.3 Vulnerability Type: remote denial of service Severity (1-10): 9 SUSE Default Package: yes Cross-References: CVE-2007-5500, CVE-2007-5904, CVE-2007-6206 CVE-2007-6282, CVE-2007-6712, CVE-2008-0600 CVE-2008-1367, CVE-2008-1375, CVE-2008-1615 CVE-2008-1669, CVE-2008-2136, CVE-2008-2148 CVE-2008-2358 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 Linux kernel update was updated on openSUSE 10.2 and 10.3 to fix the following security problems: CVE-2008-2136: A problem in SIT IPv6 tunnel handling could be used by remote attackers to immediately crash the machine. CVE-2007-6282: A remote attacker could crash the IPSec/IPv6 stack by sending a bad ESP packet. This requires the host to be able to receive such packets (default filtered by the firewall). CVE-2007-5904: A remote buffer overflow in CIFS was fixed which could potentially be used by remote attackers to crash the machine or potentially execute code. CVE-2008-1615: On x86_64 a denial of service attack could be used by local attackers to immediately panic / crash the machine. CVE-2008-2358: A security problem in DCCP was fixed, which could be used by remote attackers to crash the machine. Only a fix for openSUSE 10.2 was necessary. CVE-2008-2148: The permission checking in sys_utimensat was incorrect and local attackers could change the file times of files they do not own to the current time. CVE-2007-6206: An information leakage during core dumping of root processes was fixed. This problem was already fixed for openSUSE 10.3 previously and was now fixed for openSUSE 10.2. CVE-2007-6712: A integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired. CVE-2008-1669: Fixed a SMP ordering problem in fcntl_setlk could potentially allow local attackers to execute code by timing file locking. CVE-2008-1367: Clear the "direction" flag before calling signal handlers. For specific not yet identified programs under specific timing conditions this could potentially have caused memory corruption or code execution. CVE-2008-1375: Fixed a dnotify race condition, which could be used by local attackers to potentially execute code. CVE-2007-5500: A ptrace bug could be used by local attackers to hang their own processes indefinitely. Also various non security bugs were fixed, please see the RPM changelogs. 2) Solution or Work-Around There is no known workaround, please install the update packages. 3) Special Instructions and Notes Please restart 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 10.3: http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/kernel-bigsmp... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/kernel-debug-... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/kernel-defaul... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/kernel-source... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/kernel-syms-2... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/kernel-xen-2.... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/i586/kernel-xenpae... openSUSE 10.2: ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-bigsmp-2.6.18.8-0.10.i586.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-default-2.6.18.8-0.10.i586.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-kdump-2.6.18.8-0.10.i586.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-source-2.6.18.8-0.10.i586.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-syms-2.6.18.8-0.10.i586.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-xen-2.6.18.8-0.10.i586.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/kernel-xenpae-2.6.18.8-0.10.i586.rpm Power PC Platform: openSUSE 10.3: http://download.opensuse.org/pub/opensuse/update/10.3/rpm/ppc/kernel-default... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/ppc/kernel-kdump-2... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/ppc/kernel-ppc64-2... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/ppc/kernel-source-... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/ppc/kernel-syms-2.... openSUSE 10.2: ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-default-2.6.18.8-0.10.ppc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-iseries64-2.6.18.8-0.10.ppc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-kdump-2.6.18.8-0.10.ppc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-ppc64-2.6.18.8-0.10.ppc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-source-2.6.18.8-0.10.ppc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/kernel-syms-2.6.18.8-0.10.ppc.rpm x86-64 Platform: openSUSE 10.3: http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/kernel-debu... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/kernel-defa... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/kernel-sour... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/kernel-syms... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/x86_64/kernel-xen-... openSUSE 10.2: ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-default-2.6.18.8-0.10.x86_64.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-kdump-2.6.18.8-0.10.x86_64.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-source-2.6.18.8-0.10.x86_64.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-syms-2.6.18.8-0.10.x86_64.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/kernel-xen-2.6.18.8-0.10.x86_64.rpm Sources: openSUSE 10.3: http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-bigsmp-... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-debug-2... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-default... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-kdump-2... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-ppc64-2... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-source-... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-syms-2.... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-xen-2.6... http://download.opensuse.org/pub/opensuse/update/10.3/rpm/src/kernel-xenpae-... openSUSE 10.2: ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-bigsmp-2.6.18.8-0.10.nosrc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-default-2.6.18.8-0.10.nosrc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-iseries64-2.6.18.8-0.10.nosrc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-kdump-2.6.18.8-0.10.nosrc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-ppc64-2.6.18.8-0.10.nosrc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-source-2.6.18.8-0.10.src.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-syms-2.6.18.8-0.10.src.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-xen-2.6.18.8-0.10.nosrc.rpm ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/kernel-xenpae-2.6.18.8-0.10.nosrc.rpm ______________________________________________________________________________ 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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