ID

VAR-201206-0028

CVE

CVE-2011-1080

TITLE

Linux Kernel of net/bridge/netfilter/ebtables.c Vulnerability in which important information is obtained

DESCRIPTION

The do_replace function in net/bridge/netfilter/ebtables.c in the Linux kernel before 2.6.39 does not ensure that a certain name field ends with a '\0' character, which allows local users to obtain potentially sensitive information from kernel stack memory by leveraging the CAP_NET_ADMIN capability to replace a table, and then reading a modprobe command line. Hitachi JP1 products are prone to a cross-site scripting vulnerability because they fail to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may help the attacker steal cookie-based authentication credentials and launch other attacks. The following products are affected: JP1/IT Resource Management - Manager JP1/IT Service Level Management - Manager. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64 3. (CVE-2011-1093, Important) * Multiple buffer overflow flaws were found in the Linux kernel's Management Module Support for Message Passing Technology (MPT) based controllers. (CVE-2011-1079, Moderate) * Missing error checking in the way page tables were handled in the Xen hypervisor implementation could allow a privileged guest user to cause the host, and the guests, to lock up. (CVE-2011-1166, Moderate) * A flaw was found in the way the Xen hypervisor implementation checked for the upper boundary when getting a new event channel port. (CVE-2011-1763, Moderate) * The start_code and end_code values in "/proc/[pid]/stat" were not protected. (CVE-2011-1078, Low) * A missing validation of a null-terminated string data structure element in the do_replace() function could allow a local user who has the CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1080, Low) * A buffer overflow flaw in the DEC Alpha OSF partition implementation in the Linux kernel could allow a local attacker to cause an information leak by mounting a disk that contains specially-crafted partition tables. (CVE-2011-1163, Low) * Missing validations of null-terminated string data structure elements in the do_replace(), compat_do_replace(), do_ipt_get_ctl(), do_ip6t_get_ctl(), and do_arpt_get_ctl() functions could allow a local user who has the CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1577, Low) Red Hat would like to thank Dan Rosenberg for reporting CVE-2011-1494 and CVE-2011-1495; Vasiliy Kulikov for reporting CVE-2011-1079, CVE-2011-1078, CVE-2011-1080, CVE-2011-1170, CVE-2011-1171, and CVE-2011-1172; Kees Cook for reporting CVE-2011-0726; and Timo Warns for reporting CVE-2011-1163 and CVE-2011-1577. This update also fixes several bugs. Documentation for these bug fixes will be available shortly from the Technical Notes document linked to in the References section. Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system. 5. Bugs fixed (http://bugzilla.redhat.com/): 681259 - CVE-2011-1078 kernel: bt sco_conninfo infoleak 681260 - CVE-2011-1079 kernel: bnep device field missing NULL terminator 681262 - CVE-2011-1080 kernel: ebtables stack infoleak 682954 - CVE-2011-1093 kernel: dccp: fix oops on Reset after close 684569 - CVE-2011-0726 kernel: proc: protect mm start_code/end_code in /proc/pid/stat 688021 - CVE-2011-1163 kernel: fs/partitions: Corrupted OSF partition table infoleak 688156 - [5.6][REG]for some uses of 'nfsservctl' system call, the kernel crashes. [rhel-5.6.z] 688579 - CVE-2011-1166 kernel: xen: x86_64: fix error checking in arch_set_info_guest() 689321 - CVE-2011-1170 ipv4: netfilter: arp_tables: fix infoleak to userspace 689327 - CVE-2011-1171 ipv4: netfilter: ip_tables: fix infoleak to userspace 689345 - CVE-2011-1172 ipv6: netfilter: ip6_tables: fix infoleak to userspace 689699 - Deadlock between device driver attachment and device removal with a USB device [rhel-5.6.z] 689700 - [NetApp 5.6 Bug] QLogic 8G FC firmware dumps seen during IO [rhel-5.6.z] 690134 - Time runs too fast in a VM on processors with &gt; 4GHZ freq [rhel-5.6.z] 690239 - gfs2: creating large files suddenly slow to a crawl [rhel-5.6.z] 694021 - CVE-2011-1494 CVE-2011-1495 kernel: drivers/scsi/mpt2sas: prevent heap overflows 695976 - CVE-2011-1577 kernel: corrupted GUID partition tables can cause kernel oops 696136 - RHEL 5.6 (kernel -238) causes audio issues [rhel-5.6.z] 697448 - slab corruption after seeing some nfs-related BUG: warning [rhel-5.6.z] 699808 - dasd: fix race between open and offline [rhel-5.6.z] 701240 - CVE-2011-1763 kernel: xen: improper upper boundary check in get_free_port() function 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-238.12.1.el5.src.rpm i386: kernel-2.6.18-238.12.1.el5.i686.rpm kernel-PAE-2.6.18-238.12.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-PAE-devel-2.6.18-238.12.1.el5.i686.rpm kernel-debug-2.6.18-238.12.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-debug-devel-2.6.18-238.12.1.el5.i686.rpm kernel-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-238.12.1.el5.i686.rpm kernel-devel-2.6.18-238.12.1.el5.i686.rpm kernel-headers-2.6.18-238.12.1.el5.i386.rpm kernel-xen-2.6.18-238.12.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-xen-devel-2.6.18-238.12.1.el5.i686.rpm noarch: kernel-doc-2.6.18-238.12.1.el5.noarch.rpm x86_64: kernel-2.6.18-238.12.1.el5.x86_64.rpm kernel-debug-2.6.18-238.12.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-238.12.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-238.12.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-238.12.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-238.12.1.el5.x86_64.rpm kernel-devel-2.6.18-238.12.1.el5.x86_64.rpm kernel-headers-2.6.18-238.12.1.el5.x86_64.rpm kernel-xen-2.6.18-238.12.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-238.12.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-238.12.1.el5.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-238.12.1.el5.src.rpm i386: kernel-2.6.18-238.12.1.el5.i686.rpm kernel-PAE-2.6.18-238.12.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-PAE-devel-2.6.18-238.12.1.el5.i686.rpm kernel-debug-2.6.18-238.12.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-debug-devel-2.6.18-238.12.1.el5.i686.rpm kernel-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-238.12.1.el5.i686.rpm kernel-devel-2.6.18-238.12.1.el5.i686.rpm kernel-headers-2.6.18-238.12.1.el5.i386.rpm kernel-xen-2.6.18-238.12.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-238.12.1.el5.i686.rpm kernel-xen-devel-2.6.18-238.12.1.el5.i686.rpm ia64: kernel-2.6.18-238.12.1.el5.ia64.rpm kernel-debug-2.6.18-238.12.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-238.12.1.el5.ia64.rpm kernel-debug-devel-2.6.18-238.12.1.el5.ia64.rpm kernel-debuginfo-2.6.18-238.12.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-238.12.1.el5.ia64.rpm kernel-devel-2.6.18-238.12.1.el5.ia64.rpm kernel-headers-2.6.18-238.12.1.el5.ia64.rpm kernel-xen-2.6.18-238.12.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-238.12.1.el5.ia64.rpm kernel-xen-devel-2.6.18-238.12.1.el5.ia64.rpm noarch: kernel-doc-2.6.18-238.12.1.el5.noarch.rpm ppc: kernel-2.6.18-238.12.1.el5.ppc64.rpm kernel-debug-2.6.18-238.12.1.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-238.12.1.el5.ppc64.rpm kernel-debug-devel-2.6.18-238.12.1.el5.ppc64.rpm kernel-debuginfo-2.6.18-238.12.1.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-238.12.1.el5.ppc64.rpm kernel-devel-2.6.18-238.12.1.el5.ppc64.rpm kernel-headers-2.6.18-238.12.1.el5.ppc.rpm kernel-headers-2.6.18-238.12.1.el5.ppc64.rpm kernel-kdump-2.6.18-238.12.1.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-238.12.1.el5.ppc64.rpm kernel-kdump-devel-2.6.18-238.12.1.el5.ppc64.rpm s390x: kernel-2.6.18-238.12.1.el5.s390x.rpm kernel-debug-2.6.18-238.12.1.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-238.12.1.el5.s390x.rpm kernel-debug-devel-2.6.18-238.12.1.el5.s390x.rpm kernel-debuginfo-2.6.18-238.12.1.el5.s390x.rpm kernel-debuginfo-common-2.6.18-238.12.1.el5.s390x.rpm kernel-devel-2.6.18-238.12.1.el5.s390x.rpm kernel-headers-2.6.18-238.12.1.el5.s390x.rpm kernel-kdump-2.6.18-238.12.1.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-238.12.1.el5.s390x.rpm kernel-kdump-devel-2.6.18-238.12.1.el5.s390x.rpm x86_64: kernel-2.6.18-238.12.1.el5.x86_64.rpm kernel-debug-2.6.18-238.12.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-238.12.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-238.12.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-238.12.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-238.12.1.el5.x86_64.rpm kernel-devel-2.6.18-238.12.1.el5.x86_64.rpm kernel-headers-2.6.18-238.12.1.el5.x86_64.rpm kernel-xen-2.6.18-238.12.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-238.12.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-238.12.1.el5.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. Contact: The Red Hat security contact is &lt;secalert@redhat.com&gt;. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2011 Red Hat, Inc. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-2264-1 security@debian.org http://www.debian.org/security/ dann frazier June 18, 2011 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : linux-2.6 Vulnerability : privilege escalation/denial of service/information leak Problem type : local/remote Debian-specific: no CVE Id(s) : CVE-2010-2524 CVE-2010-3875 CVE-2010-4075 CVE-2010-4655 CVE-2011-0695 CVE-2011-0710 CVE-2011-0711 CVE-2011-0726 CVE-2011-1010 CVE-2011-1012 CVE-2011-1017 CVE-2011-1078 CVE-2011-1079 CVE-2011-1080 CVE-2011-1090 CVE-2011-1093 CVE-2011-1160 CVE-2011-1163 CVE-2011-1170 CVE-2011-1171 CVE-2011-1172 CVE-2011-1173 CVE-2011-1180 CVE-2011-1182 CVE-2011-1477 CVE-2011-1493 CVE-2011-1577 CVE-2011-1593 CVE-2011-1598 CVE-2011-1745 CVE-2011-1746 CVE-2011-1748 CVE-2011-1759 CVE-2011-1767 CVE-2011-1768 CVE-2011-1776 CVE-2011-2022 CVE-2011-2182 Debian Bug : 618485 Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2010-2524 David Howells reported an issue in the Common Internet File System (CIFS). CVE-2010-4075 Dan Rosenberg reported an issue in the tty layer that may allow local users to obtain access to sensitive kernel memory. CVE-2011-0695 Jens Kuehnel reported an issue in the InfiniBand stack. CVE-2011-0710 Al Viro reported an issue in the /proc/<pid>/status interface on the s390 architecture. Local users could gain access to sensitive memory in processes they do not own via the task_show_regs entry. CVE-2011-0711 Dan Rosenberg reported an issue in the XFS filesystem. Local users could learn the text location of a process, defeating protections provided by address space layout randomization (ASLR). Users with physical access can gain access to sensitive kernel memory or gain elevated privileges by adding a storage device with a specially crafted LDM partition. CVE-2011-1080 Vasiliy Kulikov discovered an issue in the Netfilter subsystem. CVE-2011-1160 Peter Huewe reported an issue in the Linux kernel's support for TPM security chips. CVE-2011-1163 Timo Warns reported an issue in the kernel support for Alpha OSF format disk partitions. CVE-2011-1170 Vasiliy Kulikov reported an issue in the Netfilter arp table implementation. CVE-2011-1171 Vasiliy Kulikov reported an issue in the Netfilter IP table implementation. CVE-2011-1172 Vasiliy Kulikov reported an issue in the Netfilter IP6 table implementation. CVE-2011-1173 Vasiliy Kulikov reported an issue in the Acorn Econet protocol implementation. CVE-2011-1180 Dan Rosenberg reported a buffer overflow in the Information Access Service of the IrDA protocol, used for Infrared devices. CVE-2011-1182 Julien Tinnes reported an issue in the rt_sigqueueinfo interface. Local users can generate signals with falsified source pid and uid information. CVE-2011-1477 Dan Rosenberg reported issues in the Open Sound System driver for cards that include a Yamaha FM synthesizer chip. This issue does not affect official Debian Linux image packages as they no longer provide support for OSS. However, custom kernels built from Debians linux-source-2.6.32 may have enabled this configuration and would therefore be vulnerable. CVE-2011-1493 Dan Rosenburg reported two issues in the Linux implementation of the Amateur Radio X.25 PLP (Rose) protocol. CVE-2011-1598 Dave Jones reported an issue in the Broadcast Manager Controller Area Network (CAN/BCM) protocol that may allow local users to cause a NULL pointer dereference, resulting in a denial of service. CVE-2011-1745 Vasiliy Kulikov reported an issue in the Linux support for AGP devices. On default Debian installations, this is exploitable only by users in the video group. CVE-2011-1746 Vasiliy Kulikov reported an issue in the Linux support for AGP devices. On default Debian installations, this is exploitable only by users in the video group. CVE-2011-1748 Oliver Kartkopp reported an issue in the Controller Area Network (CAN) raw socket implementation which permits ocal users to cause a NULL pointer dereference, resulting in a denial of service. CVE-2011-1759 Dan Rosenberg reported an issue in the support for executing "old ABI" binaries on ARM processors. Local users can obtain elevated privileges due to insufficient bounds checking in the semtimedop system call. CVE-2011-1767 Alexecy Dobriyan reported an issue in the GRE over IP implementation. CVE-2011-1768 Alexecy Dobriyan reported an issue in the IP tunnels implementation. CVE-2011-2022 Vasiliy Kulikov reported an issue in the Linux support for AGP devices. On default Debian installations, this is exploitable only by users in the video group. CVE-2011-2182 Ben Hutchings reported an issue with the fix for CVE-2011-1017 (see above) that made it insufficient to resolve the issue. For the oldstable distribution (lenny), this problem has been fixed in version 2.6.26-26lenny3. Updates for arm and hppa are not yet available, but will be released as soon as possible. The following matrix lists additional source packages that were rebuilt for compatibility with or to take advantage of this update: Debian 5.0 (lenny) user-mode-linux 2.6.26-1um-2+26lenny3 We recommend that you upgrade your linux-2.6 and user-mode-linux packages. These updates will not become active until after your system is rebooted. However, given the high frequency at which low-severity security issues are discovered in the kernel and the resource requirements of doing an update, updates for lower priority issues will normally not be released for all kernels at the same time. Rather, they will be released in a staggered or "leap-frog" fashion. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJN/Uv8AAoJEBv4PF5U/IZAp7QQAJmbSplvSgno69C0IFRzRgGI FS3B6uq5zNcvucQ4O2u5Zj/rPRef/M2Lxj4Vx/9FQ+4SlV/Ryazu3iknLL2iyc8a 3zZBbo6S/OvhK0Prfd88ItCxXviYJchY91qp7Pm5TOkE1rM43XLhDAi1T1W507tY 2rgqUfWkmN0Xq4Ykh3uySsIH6VkLqC5Ay7n5jXapdf3wJkyl1pg/iu0ndTnHaRTC ByQehIMbj4OOivOcy06lS89Aro+KkgPRaA0lp5enegxUZTs5S5AIo7h6v9U078xr bcUcfrOsiTpVuTRND1L7kQQhPjmIv+UlzFjYuGPbHQxfZRVnVIlB4Ny3jIyN1aBx DMqxGR+novsYIuXAZWlsF17UYQXW5CFe+7aeS06bdaWWemJGkV0Mkfb72fwa3uLz sXlLp6fju2N5RQW7WVfjx89X7SAjKmYwQnCMbo0mwdRfujBNgbkm2xCrDy+QIE23 5BnAY18kXpqaRbXPJB0sy8V99Wnl1ZSRRzX0kOZVecrhKAoCUGPJS2X+bDEtIzhB OWzxcC7P94hega5JYzteSZcyBkGRUj4604NCzD38OdPqqWvR3oWtwDRAKIR7gZ/L PRoDZucqfYV+BhXy/ib55qTo/va5gjmnlUFMP2G/TVQk9XQ/q8TxxefmnQc+Qy3A P/Hlaop/HijmZLuNpJB4 =dXCB -----END PGP SIGNATURE----- . ========================================================================== Ubuntu Security Notice USN-1256-1 November 09, 2011 linux-lts-backport-natty vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 10.04 LTS Summary: Several security issues were fixed in the kernel. Software Description: - linux-lts-backport-natty: Linux kernel backport from Natty Details: It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020) Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078) Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079) Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080) Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093) Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160) Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180) Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1478) It was discovered that the security fix for CVE-2010-4250 introduced a regression. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1479) Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493) It was discovered that the Stream Control Transmission Protocol (SCTP) implementation incorrectly calculated lengths. If the net.sctp.addip_enable variable was turned on, a remote attacker could send specially crafted traffic to crash the system. (CVE-2011-1573) Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1576) Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577) Phil Oester discovered that the network bonding system did not correctly handle large queues. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1581) It was discovered that CIFS incorrectly handled authentication. When a user had a CIFS share mounted that required authentication, a local user could mount the same share without knowing the correct password. (CVE-2011-1585) It was discovered that the GRE protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ip_gre module was loading, and crash the system, leading to a denial of service. (CVE-2011-1767) It was discovered that the IP/IP protocol incorrectly handled netns initialization. A remote attacker could send a packet while the ipip module was loading, and crash the system, leading to a denial of service. (CVE-2011-1768) Ben Greear discovered that CIFS did not correctly handle direct I/O. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service. (CVE-2011-1771) Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. (CVE-2011-1776) Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. (CVE-2011-1833) Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2183) Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service. (CVE-2011-2213) It was discovered that an mmap() call with the MAP_PRIVATE flag on "/dev/zero" was incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2479) Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service. (CVE-2011-2484) Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. (CVE-2011-2491) It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy. (CVE-2011-2492) Sami Liedes discovered that ext4 did not correctly handle missing root inodes. A local attacker could trigger the mount of a specially crafted filesystem to cause the system to crash, leading to a denial of service. (CVE-2011-2493) Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2494) Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2495) Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2496) Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497) It was discovered that the wireless stack incorrectly verified SSID lengths. A local attacker could exploit this to cause a denial of service or gain root privileges. (CVE-2011-2517) Ben Pfaff discovered that Classless Queuing Disciplines (qdiscs) were being incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2525) It was discovered that GFS2 did not correctly check block sizes. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2689) It was discovered that the EXT4 filesystem contained multiple off-by-one flaws. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2695) Fernando Gont discovered that the IPv6 stack used predictable fragment identification numbers. A remote attacker could exploit this to exhaust network resources, leading to a denial of service. (CVE-2011-2699) Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700) Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723) Christian Ohm discovered that the perf command looks for configuration files in the current directory. If a privileged user were tricked into running perf in a directory containing a malicious configuration file, an attacker could run arbitrary commands and possibly gain privileges. (CVE-2011-2905) Vasiliy Kulikov discovered that the Comedi driver did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-2909) The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918) Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service. (CVE-2011-2928) Qianfeng Zhang discovered that the bridge networking interface incorrectly handled certain network packets. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2942) Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188) Darren Lavender discovered that the CIFS client incorrectly handled certain large values. (CVE-2011-3191) Yasuaki Ishimatsu discovered a flaw in the kernel's clock implementation. A local unprivileged attacker could exploit this causing a denial of service. (CVE-2011-3209) Yogesh Sharma discovered that CIFS did not correctly handle UNCs that had no prefixpaths. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service. (CVE-2011-3363) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 10.04 LTS: linux-image-2.6.38-12-generic 2.6.38-12.51~lucid1 linux-image-2.6.38-12-generic-pae 2.6.38-12.51~lucid1 linux-image-2.6.38-12-server 2.6.38-12.51~lucid1 linux-image-2.6.38-12-virtual 2.6.38-12.51~lucid1 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well. References: http://www.ubuntu.com/usn/usn-1256-1 CVE-2011-1020, CVE-2011-1078, CVE-2011-1079, CVE-2011-1080, CVE-2011-1093, CVE-2011-1160, CVE-2011-1180, CVE-2011-1478, CVE-2011-1479, CVE-2011-1493, CVE-2011-1573, CVE-2011-1576, CVE-2011-1577, CVE-2011-1581, CVE-2011-1585, CVE-2011-1767, CVE-2011-1768, CVE-2011-1771, CVE-2011-1776, CVE-2011-1833, CVE-2011-2183, CVE-2011-2213, CVE-2011-2479, CVE-2011-2484, CVE-2011-2491, CVE-2011-2492, CVE-2011-2493, CVE-2011-2494, CVE-2011-2495, CVE-2011-2496, CVE-2011-2497, CVE-2011-2517, CVE-2011-2525, CVE-2011-2689, CVE-2011-2695, CVE-2011-2699, CVE-2011-2700, CVE-2011-2723, CVE-2011-2905, CVE-2011-2909, Package Information: https://launchpad.net/ubuntu/+source/linux-lts-backport-natty/2.6.38-12.51~lucid1 . (CVE-2010-4242) Brad Spengler discovered that the kernel did not correctly account for userspace memory allocations during exec() calls. CVE-2011-1016 Marek Olšák discovered an issue in the driver for ATI/AMD Radeon video chips. This update also includes changes queued for the next point release of Debian 6.0, which also fix various non-security issues. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

XSS

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Hitachi

SOURCES

LAST UPDATE DATE

2024-12-21T19:36:24.759000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE