A bug was discovered in the XFS filesystem's handling of pathnames. A local attacker could exploit this to crash the system, leading to a denial of service, or gain root privileges. (CVE-2011-4077)

Nick Bowler discovered the kernel GHASH message digest algorithm incorrectly handled error conditions. A local attacker could exploit this to cause a kernel oops. (CVE-2011-4081)

A flaw was found in the Journaling Block Device (JBD). A local attacker able to mount ext3 or ext4 file systems could exploit this to crash the system, leading to a denial of service. (CVE-2011-4132)

Clement Lecigne discovered a bug in the HFS file system bounds checking. When a malformed HFS file system is mounted a local user could crash the system or gain root privileges. (CVE-2011-4330).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Nick Bowler discovered the kernel GHASH message digest algorithm incorrectly handled error conditions. A local attacker could exploit this to cause a kernel oops.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0010 advisory.

    The kernel-rt packages contain the Linux kernel, the core of any Linux     operating system.

    This update fixes the following security issues:

    * A malicious CIFS (Common Internet File System) server could send a     specially-crafted response to a directory read request that would result in     a denial of service or privilege escalation on a system that has a CIFS     share mounted. (CVE-2011-3191, Important)

    * The way fragmented IPv6 UDP datagrams over the bridge with UDP     Fragmentation Offload (UFO) functionality on were handled could allow a     remote attacker to cause a denial of service. (CVE-2011-4326, Important)

    * GRO (Generic Receive Offload) fields could be left in an inconsistent     state. An attacker on the local network could use this flaw to cause a     denial of service. GRO is enabled by default in all network drivers that     support it. (CVE-2011-2723, Moderate)

    * IPv4 and IPv6 protocol sequence number and fragment ID generation could     allow a man-in-the-middle attacker to inject packets and possibly hijack     connections. Protocol sequence numbers and fragment IDs are now more     random. (CVE-2011-3188, Moderate)

    * A flaw in the FUSE (Filesystem in Userspace) implementation could allow     a local user in the fuse group who has access to mount a FUSE file system     to cause a denial of service. (CVE-2011-3353, Moderate)

    * A flaw in the b43 driver. If a system had an active wireless interface     that uses the b43 driver, an attacker able to send a specially-crafted     frame to that interface could cause a denial of service. (CVE-2011-3359,     Moderate)

    * A flaw in the way CIFS shares with DFS referrals at their root were     handled could allow an attacker on the local network, who is able to deploy     a malicious CIFS server, to create a CIFS network share that, when mounted,     would cause the client system to crash. (CVE-2011-3363, Moderate)

    * A flaw in the m_stop() implementation could allow a local, unprivileged     user to trigger a denial of service. (CVE-2011-3637, Moderate)

    * Flaws in ghash_update() and ghash_final() could allow a local,     unprivileged user to cause a denial of service. (CVE-2011-4081, Moderate)

    * A flaw in the key management facility could allow a local, unprivileged     user to cause a denial of service via the keyctl utility. (CVE-2011-4110,     Moderate)

    * A flaw in the Journaling Block Device (JBD) could allow a local attacker     to crash the system by mounting a specially-crafted ext3 or ext4 disk.
    (CVE-2011-4132, Moderate)

    * A flaw in the way memory containing security-related data was handled in     tpm_read() could allow a local, unprivileged user to read the results of a     previously run TPM command. (CVE-2011-1162, Low)

    * I/O statistics from the taskstats subsystem could be read without any     restrictions, which could allow a local, unprivileged user to gather     confidential information, such as the length of a password used in a     process. (CVE-2011-2494, Low)

    * Flaws in tpacket_rcv() and packet_recvmsg() could allow a local,     unprivileged user to leak information to user-space. (CVE-2011-2898, Low)

    Red Hat would like to thank Darren Lavender for reporting CVE-2011-3191;
    Brent Meshier for reporting CVE-2011-2723; Dan Kaminsky for reporting     CVE-2011-3188; Yogesh Sharma for reporting CVE-2011-3363; Nick Bowler for     reporting CVE-2011-4081; Peter Huewe for reporting CVE-2011-1162; and     Vasiliy Kulikov of Openwall for reporting CVE-2011-2494.

    This update also fixes the following bugs:

    * Previously, a mismatch in the build-id of the kernel-rt and the one in     the related debuginfo package caused failures in SystemTap and perf.
    (BZ#768413)

    * IBM x3650m3 systems were not able to boot the MRG Realtime kernel because     they require a pmcraid driver that was not available. The pmcraid driver is     included in this update. (BZ#753992)

    Users should upgrade to these updated packages, which correct these issues.
    The system must be rebooted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-406:03 advisory.

    [Security Fix]
    - CONFIG_XFS_DEBUGxfs_readlinkXFS()(CVE-2011-4077)
    - ghash_updateghash_final(CVE-2011-4081)
    - JBD(Journaling Block Device)cleanup_journal_tailext3ext4(kernel OOPS)(CVE-2011-4132)
    - KVMkvm_vm_ioctl_assign_deviceuser requesting device assignmentPCI(CVE-2011-4347)
    - sendmsg__sys_sendmsg(CVE-2011-4594)
    - PPC(CVE-2011-4611)
    - KVMcreate_pit_time(NULL)(CVE-2011-4622)
    - XFSon-disk ACLs(Access Control Lists)(CVE-2012-0038)
    - 32bitKVMsyscall(CVE-2012-0045)
    - igmp_heard_queryIGMP(Internet GroupManagement Protocol)(CVE-2012-0207)     CVEJVN     http://jvndb.jvn.jp

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 11 SP1 kernel has been updated to 2.6.32.54, fixing numerous bugs and security issues.

The following security issues have been fixed :

  - A potential hypervisor escape by issuing SG_IO commands     to partitiondevices was fixed by restricting access to     these commands. (CVE-2011-4127)

  - KEYS: Fix a NULL pointer deref in the user-defined key     type, which allowed local attackers to Oops the kernel.
    (CVE-2011-4110)

  - Avoid potential NULL pointer deref in ghash, which     allowed local attackers to Oops the kernel.
    (CVE-2011-4081)

  - Fixed a memory corruption possibility in xfs readlink,     which could be used by local attackers to crash the     system or potentially execute code by mounting a     prepared xfs filesystem image. (CVE-2011-4077)

  - A overflow in the xfs acl handling was fixed that could     be used by local attackers to crash the system or     potentially execute code by mounting a prepared xfs     filesystem image. (CVE-2012-0038)

  - A flaw in the ext3/ext4 filesystem allowed a local     attacker to crash the kernel by getting a prepared     ext3/ext4 filesystem mounted. (CVE-2011-4132)

  - Access to the taskstats /proc file was restricted to     avoid local attackers gaining knowledge of IO of other     users (and so effecting side-channel attacks for e.g.
    guessing passwords by typing speed). (CVE-2011-2494)

  - When using X.25 communication a malicious sender could     corrupt data structures, causing crashes or potential     code execution. Please note that X.25 needs to be setup     to make this effective, which these days is usually not     the case. (CVE-2010-3873)

  - When using X.25 communication a malicious sender could     make the machine leak memory, causing crashes. Please     note that X.25 needs to be setup to make this effective,     which these days is usually not the case.
    (CVE-2010-4164)

  - A remote denial of service due to a NULL pointer     dereference by using IPv6 fragments was fixed.
    (CVE-2011-2699) The following non-security issues have     been fixed (excerpt from changelog) :

  - elousb: Fixed bug in USB core API usage, code cleanup.

  - cifs: overhaul cifs_revalidate and rename to     cifs_revalidate_dentry.

  - cifs: set server_eof in cifs_fattr_to_inode.

  - xfs: Fix missing xfs_iunlock() on error recovery path in     xfs_readlink().

  - Silence some warnings about ioctls on partitions.

  - netxen: Remove all references to unified firmware file.

  - bonding: send out gratuitous arps even with no address     configured.

  - patches.fixes/ocfs2-serialize_unaligned_aio.patch:
    ocfs2: serialize unaligned aio.

  -     patches.fixes/bonding-check-if-clients-MAC-addr-has-chan     ged.patch: Update references.

  - xfs: Fix wait calculations on lock acquisition and use     milliseconds instead of jiffies to print the wait time.

  - ipmi: reduce polling when interrupts are available.

  - ipmi: reduce polling.

  - export shrink_dcache_for_umount_subtree.

  - patches.suse/stack-unwind: Fix more 2.6.29 merge     problems plus a glue code problem.

  - PM / Sleep: Fix race between CPU hotplug and freezer.

  - jbd: Issue cache flush after checkpointing.

  - lpfc: make sure job exists when processing BSG.

  - blktap: fix locking (again).

  - xen: Update Xen patches to 2.6.32.52.

  - reiserfs: Lock buffers unconditionally in     reiserfs_write_full_page().

  - writeback: Include all dirty inodes in background     writeback.

  - reiserfs: Fix quota mount option parsing.

  - bonding: check if clients MAC addr has changed.

  - rpc client can not deal with ENOSOCK, so translate it     into ENOCONN.

  - st: modify tape driver to allow writing immediate     filemarks.

  - xfs: fix for xfssyncd failure to wake.

  - ipmi: Fix deadlock in start_next_msg().

  - net: bind() fix error return on wrong address family.

  - net: ipv4: relax AF_INET check in bind().

  - net/ipv6: check for mistakenly passed in non-AF_INET6     sockaddrs.

  - Bluetooth: Fixed Atheros AR3012 Maryann PID/VID     supported.

  - percpu: fix chunk range calculation.

  - x86, UV: Fix kdump reboot.

  - dm: Use done_bytes for io_completion.

  - Bluetooth: Add Atheros AR3012 Maryann PID/VID supported.

  - Bluetooth: Add Atheros AR3012 one PID/VID supported.

  - fix missing hunk in oplock break patch.

  - patches.arch/s390-34-01-pfault-cpu-hotplug.patch:
    Refresh.

  - Surrounded s390x lowcore change with __GENKSYMS__

  - patches.xen/xen3-patch-2.6.30: Refresh.

  - sched, x86: Avoid unnecessary overflow in sched_clock.

  - ACPI thermal: Do not invalidate thermal zone if critical     trip point is bad.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-2003 advisory.

    - [fs] xfs: Fix possible memory corruption in xfs_readlink (Carlos Maiolino) {CVE-2011-4077}
    - crypto: ghash - Avoid null pointer dereference if no key is set (Nick Bowler) {CVE-2011-4081}
    - jbd/jbd2: validate sb->s_first in journal_get_superblock() (Eryu Guan) {CVE-2011-4132}
    - KVM: Device assignment permission checks (Joe Jin) {CVE-2011-4347}
    - KVM: x86: Prevent starting PIT timers in the absence of irqchip support (Jan Kiszka) {CVE-2011-4622}
    - xfs: validate acl count (Joe Jin) {CVE-2012-0038}
    - KVM: x86: fix missing checks in syscall emulation (Joe Jin) {CVE-2012-0045}
    - KVM: x86: extend 'struct x86_emulate_ops' with 'get_cpuid' (Joe Jin) {CVE-2012-0045}
    - igmp: Avoid zero delay when receiving odd mixture of IGMP queries (Ben Hutchings) {CVE-2012-0207}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.

Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6, when CONFIG_XFS_DEBUG is disabled, allows local users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via an XFS image containing a symbolic link with a long pathname.

crypto/ghash-generic.c in the Linux kernel before 3.1 allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact by triggering a failed or missing ghash_setkey function call, followed by a (1) ghash_update function call or (2) ghash_final function call, as demonstrated by a write operation on an AF_ALG socket.

A bug was discovered in the XFS filesystem's handling of pathnames. A local attacker could exploit this to crash the system, leading to a denial of service, or gain root privileges. (CVE-2011-4077)

Nick Bowler discovered the kernel GHASH message digest algorithm incorrectly handled error conditions. A local attacker could exploit this to cause a kernel oops. (CVE-2011-4081)

A flaw was found in the Journaling Block Device (JBD). A local attacker able to mount ext3 or ext4 file systems could exploit this to crash the system, leading to a denial of service. (CVE-2011-4132)

A bug was found in the way headroom check was performed in udp6_ufo_fragment() function. A remote attacker could use this flaw to crash the system. (CVE-2011-4326)

Clement Lecigne discovered a bug in the HFS file system bounds checking. When a malformed HFS file system is mounted a local user could crash the system or gain root privileges. (CVE-2011-4330).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0350 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux     operating system.

    This update fixes the following security issues:

    * A buffer overflow flaw was found in the way the Linux kernel's XFS file     system implementation handled links with overly long path names. A local,     unprivileged user could use this flaw to cause a denial of service or     escalate their privileges by mounting a specially-crafted disk.
    (CVE-2011-4077, Moderate)

    * Flaws in ghash_update() and ghash_final() could allow a local,     unprivileged user to cause a denial of service. (CVE-2011-4081, Moderate)

    * A flaw was found in the Linux kernel's Journaling Block Device (JBD). A     local, unprivileged user could use this flaw to crash the system by     mounting a specially-crafted ext3 or ext4 disk. (CVE-2011-4132, Moderate)

    * It was found that the kvm_vm_ioctl_assign_device() function in the KVM     (Kernel-based Virtual Machine) subsystem of a Linux kernel did not check if     the user requesting device assignment was privileged or not. A local,     unprivileged user on the host could assign unused PCI devices, or even     devices that were in use and whose resources were not properly claimed by     the respective drivers, which could result in the host crashing.
    (CVE-2011-4347, Moderate)

    * Two flaws were found in the way the Linux kernel's __sys_sendmsg()     function, when invoked via the sendmmsg() system call, accessed user-space     memory. A local, unprivileged user could use these flaws to cause a denial     of service. (CVE-2011-4594, Moderate)

    * The RHSA-2011:1530 kernel update introduced an integer overflow flaw in     the Linux kernel. On PowerPC systems, a local, unprivileged user could use     this flaw to cause a denial of service. (CVE-2011-4611, Moderate)

    * A flaw was found in the way the KVM subsystem of a Linux kernel handled     PIT (Programmable Interval Timer) IRQs (interrupt requests) when there was     no virtual interrupt controller set up. A local, unprivileged user on the     host could force this situation to occur, resulting in the host crashing.
    (CVE-2011-4622, Moderate)

    * A flaw was found in the way the Linux kernel's XFS file system     implementation handled on-disk Access Control Lists (ACLs). A local,     unprivileged user could use this flaw to cause a denial of service or     escalate their privileges by mounting a specially-crafted disk.
    (CVE-2012-0038, Moderate)

    * A flaw was found in the way the Linux kernel's KVM hypervisor     implementation emulated the syscall instruction for 32-bit guests. An     unprivileged guest user could trigger this flaw to crash the guest.
    (CVE-2012-0045, Moderate)

    * A divide-by-zero flaw was found in the Linux kernel's igmp_heard_query()     function. An attacker able to send certain IGMP (Internet Group Management     Protocol) packets to a target system could use this flaw to cause a denial     of service. (CVE-2012-0207, Moderate)

    Red Hat would like to thank Nick Bowler for reporting CVE-2011-4081; Sasha     Levin for reporting CVE-2011-4347; Tetsuo Handa for reporting     CVE-2011-4594; Maynard Johnson for reporting CVE-2011-4611; Wang Xi for     reporting CVE-2012-0038; Stephan Brwolf for reporting CVE-2012-0045; and     Simon McVittie for reporting CVE-2012-0207. Upstream acknowledges Mathieu     Desnoyers as the original reporter of CVE-2011-4594.

    This update also fixes several bugs. Documentation for these changes 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. The system must be rebooted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

  - A buffer overflow flaw was found in the way the Linux     kernel's XFS file system implementation handled links     with overly long path names. A local, unprivileged user     could use this flaw to cause a denial of service or     escalate their privileges by mounting a specially     crafted disk. (CVE-2011-4077, Moderate)

  - Flaws in ghash_update() and ghash_final() could allow a     local, unprivileged user to cause a denial of service.
    (CVE-2011-4081, Moderate)

  - A flaw was found in the Linux kernel's Journaling Block     Device (JBD). A local, unprivileged user could use this     flaw to crash the system by mounting a specially crafted     ext3 or ext4 disk. (CVE-2011-4132, Moderate)

  - It was found that the kvm_vm_ioctl_assign_device()     function in the KVM (Kernel-based Virtual Machine)     subsystem of a Linux kernel did not check if the user     requesting device assignment was privileged or not. A     local, unprivileged user on the host could assign unused     PCI devices, or even devices that were in use and whose     resources were not properly claimed by the respective     drivers, which could result in the host crashing.
    (CVE-2011-4347, Moderate)

  - Two flaws were found in the way the Linux kernel's
    __sys_sendmsg() function, when invoked via the     sendmmsg() system call, accessed user-space memory. A     local, unprivileged user could use these flaws to cause     a denial of service. (CVE-2011-4594, Moderate)

  - A flaw was found in the way the KVM subsystem of a Linux     kernel handled PIT (Programmable Interval Timer) IRQs     (interrupt requests) when there was no virtual interrupt     controller set up. A local, unprivileged user on the     host could force this situation to occur, resulting in     the host crashing. (CVE-2011-4622, Moderate)

  - A flaw was found in the way the Linux kernel's XFS file     system implementation handled on-disk Access Control     Lists (ACLs). A local, unprivileged user could use this     flaw to cause a denial of service or escalate their     privileges by mounting a specially crafted disk.
    (CVE-2012-0038, Moderate)

  - A flaw was found in the way the Linux kernel's KVM     hypervisor implementation emulated the syscall     instruction for 32-bit guests. An unprivileged guest     user could trigger this flaw to crash the guest.
    (CVE-2012-0045, Moderate)

  - A divide-by-zero flaw was found in the Linux kernel's     igmp_heard_query() function. An attacker able to send     certain IGMP (Internet Group Management Protocol)     packets to a target system could use this flaw to cause     a denial of service. (CVE-2012-0207, Moderate)

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-0350 advisory.

    - [fs] xfs: Fix missing xfs_iunlock() on error recovery path in xfs_readlink() (Carlos Maiolino) [749161     694702] {CVE-2011-4077}
    - [fs] xfs: Fix memory corruption in xfs_readlink (Carlos Maiolino) [749161 694702] {CVE-2011-4077}
    - [net] igmp: Avoid zero delay when receiving odd mixture of IGMP queries (Jiri Pirko) [772870 772871]     {CVE-2012-0207}
    - [fs] xfs: validate acl count (Eric Sandeen) [773282 773283] {CVE-2012-0038}
    - [virt] kvm: x86: fix missing checks in syscall emulation (Marcelo Tosatti) [773390 773391]     {CVE-2012-0045}
    - [virt] kvm: x86: extend 'struct x86_emulate_ops' with 'get_cpuid' (Marcelo Tosatti) [773390 773391]     {CVE-2012-0045}
    - [kernel] crypto: ghash - Avoid null pointer dereference if no key is set (Jiri Benc) [749481 749482]     {CVE-2011-4081}
    - [fs] jbd2: validate sb->s_first in journal_get_superblock() (Eryu Guan) [753344 693981] {CVE-2011-4132}
    - [net] fix unsafe pointer access in sendmmsg (Jiri Benc) [761668 760798] {CVE-2011-4594}
    - [perf] powerpc: Handle events that raise an exception without overflowing (Steve Best) [767917 755737]     {CVE-2011-4611}
    - [virt] x86: Prevent starting PIT timers in the absence of irqchip support (Marcelo Tosatti) [769634     769550] {CVE-2011-4622}
    - [virt] KVM: Device assignment permission checks (Alex Williamson) [756092 756093] {CVE-2011-4347}
    - [virt] KVM: Remove ability to assign a device without iommu support (Alex Williamson) [756092 756093]     {CVE-2011-4347}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
57343	Ubuntu 11.04 : linux vulnerabilities (USN-1312-1)	Nessus	Ubuntu Local Security Checks	2011/12/20	2019/9/19	high
57344	Ubuntu 10.04 LTS : linux-lts-backport-oneiric vulnerability (USN-1313-1)	Nessus	Ubuntu Local Security Checks	2011/12/20	2019/9/19	medium
76635	RHEL 6 : kernel-rt (RHSA-2012:0010)	Nessus	Red Hat Local Security Checks	2014/7/22	2025/3/24	critical
284302	MiracleLinux 4 : kernel-2.6.32-220.7.1.el6 (AXSA:2012-406:03)	Nessus	Miracle Linux Local Security Checks	2026/1/14	2026/1/19	high
57467	Ubuntu 11.10 : linux vulnerability (USN-1322-1)	Nessus	Ubuntu Local Security Checks	2012/1/10	2019/9/19	high
57853	SuSE 11.1 Security Update : Linux Kernel (SAT Patch Numbers 5723 / 5725)	Nessus	SuSE Local Security Checks	2012/2/7	2021/1/19	high
68669	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2003)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2026/2/9	high
69581	Amazon Linux AMI : kernel (ALAS-2011-22)	Nessus	Amazon Linux Local Security Checks	2013/9/4	2020/7/30	medium
57056	Ubuntu 10.04 LTS : linux-lts-backport-maverick vulnerabilities (USN-1292-1)	Nessus	Ubuntu Local Security Checks	2011/12/9	2019/9/19	high
58261	RHEL 6 : kernel (RHSA-2012:0350)	Nessus	Red Hat Local Security Checks	2012/3/7	2024/11/4	high
61277	Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20120306)	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
68491	Oracle Linux 6 : kernel (ELSA-2012-0350)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2026/2/9	high

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