-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement ID: SUSE-SA:2011:002 Date: Mon, 03 Jan 2011 15:00:00 +0000 Affected Products: openSUSE 11.2 Vulnerability Type: potential local privilege escalation CVSS v2 Base Score: 6.6 (AV:L/AC:L/Au:N/C:C/I:N/A:C) SUSE Default Package: yes Cross-References: CVE-2010-3067, CVE-2010-3437, CVE-2010-3442 CVE-2010-3861, CVE-2010-3865, CVE-2010-3874 CVE-2010-4078, CVE-2010-4080, CVE-2010-4081 CVE-2010-4082, CVE-2010-4157, CVE-2010-4158 CVE-2010-4160, CVE-2010-4162, CVE-2010-4163 CVE-2010-4164, CVE-2010-4165, CVE-2010-4175 CVE-2010-4258 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 update of the openSUSE 11.2 kernel fixes various bugs and lots of security issues. Following security issues have been fixed: CVE-2010-4258: A local attacker could use a Oops (kernel crash) caused by other flaws to write a 0 byte to a attacker controlled address in the kernel. This could lead to privilege escalation together with other issues. CVE-2010-4160: A overflow in sendto() and recvfrom() routines was fixed that could be used by local attackers to potentially crash the kernel using some socket families like L2TP. CVE-2010-4157: A 32bit vs 64bit integer mismatch in gdth_ioctl_alloc could lead to memory corruption in the GDTH driver. CVE-2010-4165: The do_tcp_setsockopt function in net/ipv4/tcp.c in the Linux kernel did not properly restrict TCP_MAXSEG (aka MSS) values, which allows local users to cause a denial of service (OOPS) via a setsockopt call that specifies a small value, leading to a divide-by-zero error or incorrect use of a signed integer. CVE-2010-4164: A remote (or local) attacker communicating over X.25 could cause a kernel panic by attempting to negotiate malformed facilities. CVE-2010-4175: A local attacker could cause memory overruns in the RDS protocol stack, potentially crashing the kernel. So far it is considered not to be exploitable. CVE-2010-3874: A minor heap overflow in the CAN network module was fixed. Due to nature of the memory allocator it is likely not exploitable. CVE-2010-3874: A minor heap overflow in the CAN network module was fixed. Due to nature of the memory allocator it is likely not exploitable. CVE-2010-4158: A memory information leak in Berkeley packet filter rules allowed local attackers to read uninitialized memory of the kernel stack. CVE-2010-4162: A local denial of service in the blockdevice layer was fixed. CVE-2010-4163: By submitting certain I/O requests with 0 length, a local user could have caused a kernel panic. CVE-2010-3861: The ethtool_get_rxnfc function in net/core/ethtool.c in the Linux kernel did not initialize a certain block of heap memory, which allowed local users to obtain potentially sensitive information via an ETHTOOL_GRXCLSRLALL ethtool command with a large info.rule_cnt value. CVE-2010-3442: Multiple integer overflows in the snd_ctl_new function in sound/core/control.c in the Linux kernel allowed local users to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a crafted (1) SNDRV_CTL_IOCTL_ELEM_ADD or (2) SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl call. CVE-2010-3437: A range checking overflow in pktcdvd ioctl was fixed. CVE-2010-4078: The sisfb_ioctl function in drivers/video/sis/sis_main.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via an FBIOGET_VBLANK ioctl call. CVE-2010-4080: The snd_hdsp_hwdep_ioctl function in sound/pci/rme9652/hdsp.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory via an SNDRV_HDSP_IOCTL_GET_CONFIG_INFO ioctl call. CVE-2010-4081: The snd_hdspm_hwdep_ioctl function in sound/pci/rme9652/hdspm.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory via an SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO ioctl call. CVE-2010-4082: The viafb_ioctl_get_viafb_info function in drivers/video/via/ioctl.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via a VIAFB_GET_INFO ioctl call. CVE-2010-3067: Integer overflow in the do_io_submit function in fs/aio.c in the Linux kernel allowed local users to cause a denial of service or possibly have unspecified other impact via crafted use of the io_submit system call. CVE-2010-3865: A iovec integer overflow in RDS sockets was fixed which could lead to local attackers gaining kernel privileges. 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. x86 Platform: openSUSE 11.2: http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-2.6.31.14-0.6... http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-base-2.6.31.1... http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-devel-2.6.31.... http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-2.6.31.14-0... http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-base-2.6.31... http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-devel-2.6.3... http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-2.6.31.14-0... http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-base-2.6.31... http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-devel-2.6.3... http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-2.6.31.14-0.6.1... http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-base-2.6.31.14-... http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-devel-2.6.31.14... http://download.opensuse.org/update/11.2/rpm/i586/kernel-syms-2.6.31.14-0.6.... http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-2.6.31.14-0.6... http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-base-2.6.31.1... http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-devel-2.6.31.... http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-2.6.31.14-0... http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-base-2.6.31... http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-devel-2.6.3... http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-2.6.31.14-0.6.1... http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-base-2.6.31.14-... http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-devel-2.6.31.14... http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-default-1.1_2.... http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-desktop-1.1_2.... Platform Independent: openSUSE 11.2: http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-2.6.31.14-... http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-vanilla-2.... x86-64 Platform: openSUSE 11.2: http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-2.6.31.14-0... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-base-2.6.31... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-devel-2.6.3... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-2.6.31.14... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-base-2.6.... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-devel-2.6... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-2.6.31.14... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-base-2.6.... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-devel-2.6... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-syms-2.6.31.14-0.... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-2.6.31.14-0... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-base-2.6.31... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-devel-2.6.3... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-2.6.31.14... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-base-2.6.... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-devel-2.6... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-2.6.31.14-0.6... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-base-2.6.31.1... http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-devel-2.6.31.... http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-default-1.1_... http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-desktop-1.1_... Sources: openSUSE 11.2: http://download.opensuse.org/update/11.2/rpm/src/kernel-debug-2.6.31.14-0.6.... http://download.opensuse.org/update/11.2/rpm/src/kernel-default-2.6.31.14-0.... http://download.opensuse.org/update/11.2/rpm/src/kernel-desktop-2.6.31.14-0.... http://download.opensuse.org/update/11.2/rpm/src/kernel-pae-2.6.31.14-0.6.1.... http://download.opensuse.org/update/11.2/rpm/src/kernel-source-2.6.31.14-0.6... http://download.opensuse.org/update/11.2/rpm/src/kernel-syms-2.6.31.14-0.6.1... http://download.opensuse.org/update/11.2/rpm/src/kernel-trace-2.6.31.14-0.6.... http://download.opensuse.org/update/11.2/rpm/src/kernel-vanilla-2.6.31.14-0.... http://download.opensuse.org/update/11.2/rpm/src/kernel-xen-2.6.31.14-0.6.1.... ______________________________________________________________________________ 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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