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==================================================================== CERT-Renater Note d'Information No. 2010/VULN014 _____________________________________________________________________ DATE : 08/01/2010 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : openSUSE version 11.2. ====================================================================== http://www.novell.com/linux/security/advisories/2010_01_kernel.html ______________________________________________________________________ ______________________________________________________________________________ SUSE Security Announcement Package: kernel Announcement ID: SUSE-SA:2010:001 Date: Thu, 07 Jan 2010 18:00:00 +0000 Affected Products: openSUSE 11.2 Vulnerability Type: remote denial of service CVSS v2 Base Score: 7.8 SUSE Default Package: yes Cross-References: CVE-2009-1298, CVE-2009-3080, CVE-2009-3547 CVE-2009-3621, CVE-2009-3624, CVE-2009-3939 CVE-2009-4005, CVE-2009-4021, CVE-2009-4026 CVE-2009-4027, CVE-2009-4131, CVE-2009-4138 CVE-2009-4306, CVE-2009-4307, CVE-2009-4308 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 for openSUSE 11.2 was updated to 2.6.31.8 fixing lots of bugs and several security issues. Following security issues were fixed: CVE-2009-4131: A file overwrite issue on the ext4 filesystem could be used by local attackers that have write access to a filesystem to change/overwrite files of other users, including root. CVSS v2 Base Score: 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C) CVE-2009-1298: A remote denial of service by sending overly long packets could be used by remote attackers to crash a machine. CVSS v2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C) CVE-2009-4026: The mac80211 subsystem in the Linux kernel allows remote attackers to cause a denial of service (panic) via a crafted Delete Block ACK (aka DELBA) packet, related to an erroneous "code shuffling patch." CVSS v2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C) CVE-2009-4027: Race condition in the mac80211 subsystem in the Linux kernel allows remote attackers to cause a denial of service (system crash) via a Delete Block ACK (aka DELBA) packet that triggers a certain state change in the absence of an aggregation session. CVSS v2 Base Score: 7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C) CVE-2009-3939: The poll_mode_io file for the megaraid_sas driver in the Linux kernel has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file. CVSS v2 Base Score: 6.6 (AV:L/AC:L/Au:N/C:N/I:C/A:C) CVE-2009-4005: The collect_rx_frame function in drivers/isdn/hisax/hfc_usb.c in the Linux kernel allows attackers to have an unspecified impact via a crafted HDLC packet that arrives over ISDN and triggers a buffer under-read. This requires the attacker to access the machine on ISDN protocol level. CVSS v2 Base Score: 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C) CVE-2009-3080: Array index error in the gdth_read_event function in drivers/scsi/gdth.c in the Linux kernel allows local users to cause a denial of service or possibly gain privileges via a negative event index in an IOCTL request. CVSS v2 Base Score: 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C) CVE-2009-3624: The get_instantiation_keyring function in security/keys/keyctl.c in the KEYS subsystem in the Linux kernel does not properly maintain the reference count of a keyring, which allows local users to gain privileges or cause a denial of service (OOPS) via vectors involving calls to this function without specifying a keyring by ID, as demonstrated by a series of keyctl request2 and keyctl list commands. CVSS v2 Base Score: 4.6 (AV:L/AC:L/Au:N/C:P/I:P/A:P) CVE-2009-4021: The fuse_direct_io function in fs/fuse/file.c in the fuse subsystem in the Linux kernel might allow attackers to cause a denial of service (invalid pointer dereference and OOPS) via vectors possibly related to a memory-consumption attack. CVSS v2 Base Score: 4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C) CVE-2009-3547: Multiple race conditions in fs/pipe.c in the Linux kernel allow local users to cause a denial of service (NULL pointer dereference and system crash) or gain privileges by attempting to open an anonymous pipe via a /proc/*/fd/ pathname. As openSUSE 11.2 by default sets mmap_min_addr protection, this issue will just Oops the kernel and not be able to execute code. CVSS v2 Base Score: 6.9 (AV:L/AC:M/Au:N/C:C/I:C/A:C) CVE-2009-3621: net/unix/af_unix.c in the Linux kernel allows local users to cause a denial of service (system hang) by creating an abstract-namespace AF_UNIX listening socket, performing a shutdown operation on this socket, and then performing a series of connect operations to this socket. CVSS v2 Base Score: 4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C) CVE-2009-4138: drivers/firewire/ohci.c in the Linux kernel when packet-per-buffer mode is used, allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unknown other impact via an unspecified ioctl associated with receiving an ISO packet that contains zero in the payload-length field. CVSS v2 Base Score: 4.7 (AV:L/AC:M/Au:N/C:N/I:N/A:C) CVE-2009-4308: The ext4_decode_error function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference), and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal. CVSS v2 Base Score: 7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C) CVE-2009-4307: The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel allows user-assisted remote attackers to cause a denial of service (divide-by-zero error and panic) via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). CVSS v2 Base Score: 7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C) CVE-2009-4306: Unspecified vulnerability in the EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel allows local users to cause a denial of service (filesystem corruption) via unknown vectors, a different vulnerability than CVE-2009-4131. CVSS v2 Base Score: 4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C) CVE-2009-4131: The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions. This can lead to privilege escalations. CVSS v2 Base Score: 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C) Also, the rt2870 and rt2860 drivers were refreshed to the level they are in the Linux 2.6.32 kernel, bringing new device support and new functionality. 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 -Fhvto apply the update, replacing with the filename of the downloaded RPM package. x86 Platform: openSUSE 11.2: http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-debug-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-debug-debugsource-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-debug-devel-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-default-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-default-debugsource-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-default-devel-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-desktop-base-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-desktop-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-desktop-debugsource-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-pae-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-pae-debugsource-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-pae-devel-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-trace-base-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-trace-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-trace-debugsource-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-vanilla-base-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-vanilla-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-vanilla-debugsource-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-xen-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-xen-debugsource-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/debug/update/11.2/rpm/i586/kernel-xen-devel-debuginfo-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-base-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-devel-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-base-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-devel-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-base-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-devel-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-base-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-devel-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-syms-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-base-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-devel-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-base-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-devel-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-base-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-devel-2.6.31.8-0.1.1.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-default-1.1_2.6.31.8_0.1-6.9.3.i586.rpm http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-desktop-1.1_2.6.31.8_0.1-6.9.3.i586.rpm Platform Independent: openSUSE 11.2: http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-2.6.31.8-0.1.1.noarch.rpm http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-vanilla-2.6.31.8-0.1.1.noarch.rpm x86-64 Platform: openSUSE 11.2: http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-debug-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-debug-debugsource-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-debug-devel-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-default-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-default-debugsource-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-default-devel-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-desktop-base-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-desktop-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-desktop-debugsource-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-trace-base-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-trace-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-trace-debugsource-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-vanilla-base-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-vanilla-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-vanilla-debugsource-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-xen-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-xen-debugsource-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/debug/update/11.2/rpm/x86_64/kernel-xen-devel-debuginfo-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-base-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-devel-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-base-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-devel-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-base-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-devel-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-syms-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-base-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-devel-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-base-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-devel-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-base-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-devel-2.6.31.8-0.1.1.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-default-1.1_2.6.31.8_0.1-6.9.3.x86_64.rpm http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-desktop-1.1_2.6.31.8_0.1-6.9.3.x86_64.rpm Sources: openSUSE 11.2: http://download.opensuse.org/update/11.2/rpm/src/kernel-debug-2.6.31.8-0.1.1.nosrc.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-default-2.6.31.8-0.1.1.nosrc.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-desktop-2.6.31.8-0.1.1.nosrc.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-pae-2.6.31.8-0.1.1.nosrc.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-source-2.6.31.8-0.1.1.src.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-syms-2.6.31.8-0.1.1.src.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-trace-2.6.31.8-0.1.1.nosrc.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-vanilla-2.6.31.8-0.1.1.nosrc.rpm http://download.opensuse.org/update/11.2/rpm/src/kernel-xen-2.6.31.8-0.1.1.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 replacing with the name of the file where you saved the announcement. The output for a valid signature looks like: gpg: Signature made using RSA key ID 3D25D3D9 gpg: Good signature from "SuSE Security Team " where 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 to verify the signature of the package, replacing 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-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 . ===================================================================== SUSE's security contact is or . The 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. Type Bits/KeyID Date User ID pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================