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.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2013-0039 for details.

An updated rhev-hypervisor5 package that fixes several security issues and various bugs is now available.

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.

The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions.

A heap overflow flaw was found in the way QEMU-KVM emulated the e1000 network interface card. A privileged guest user in a virtual machine whose network interface is configured to use the e1000 emulated driver could use this flaw to crash the host or, possibly, escalate their privileges on the host. (CVE-2012-0029)

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)

A double free flaw was discovered in the policy checking code in OpenSSL. A remote attacker could use this flaw to crash an application that uses OpenSSL by providing an X.509 certificate that has specially crafted policy extension data. (CVE-2011-4109)

An information leak flaw was found in the SSL 3.0 protocol implementation in OpenSSL. Incorrect initialization of SSL record padding bytes could cause an SSL client or server to send a limited amount of possibly sensitive data to its SSL peer via the encrypted connection. (CVE-2011-4576)

It was discovered that OpenSSL did not limit the number of TLS/SSL handshake restarts required to support Server Gated Cryptography. A remote attacker could use this flaw to make a TLS/SSL server using OpenSSL consume an excessive amount of CPU by continuously restarting the handshake. (CVE-2011-4619)

Red Hat would like to thank Nicolae Mogoreanu for reporting CVE-2012-0029, and Simon McVittie for reporting CVE-2012-0207.

This updated package provides updated components that include fixes for various security issues. These issues have no security impact on Red Hat Enterprise Virtualization Hypervisor itself, however. The security fixes included in this update address the following CVE numbers :

CVE-2006-1168 and CVE-2011-2716 (busybox issues)

CVE-2009-5029, CVE-2009-5064, CVE-2010-0830 and CVE-2011-1089 (glibc issues)

CVE-2011-1083, CVE-2011-3638, CVE-2011-4086, CVE-2011-4127 and CVE-2012-0028 (kernel issues)

CVE-2011-1526 (krb5 issue)

CVE-2011-4347 (kvm issue)

CVE-2010-4008, CVE-2011-0216, CVE-2011-2834, CVE-2011-3905, CVE-2011-3919 and CVE-2011-1944 (libxml2 issues)

CVE-2011-1749 (nfs-utils issue)

CVE-2011-4108 (openssl issue)

CVE-2011-0010 (sudo issue)

CVE-2011-1675 and CVE-2011-1677 (util-linux issues)

CVE-2010-0424 (vixie-cron issue)

This updated rhev-hypervisor5 package fixes various bugs.
Documentation of these changes will be available shortly in the Technical Notes document :

https://docs.redhat.com/docs/en-US/ Red_Hat_Enterprise_Virtualization_for_Servers/2.2/html/Technical_Notes / index.html

Users of Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package, which fixes these issues.

The openSUSE 11.4 kernel was updated to fix various bugs and security issues.

This is the final update of the 2.6.37 kernel of openSUSE 11.4.

This kernel update of the openSUSE 12.1 kernel fixes lots of bugs and security issues.

Following issues were fixed :

  - tcp: drop SYN+FIN messages (bnc#765102).

  - net: sock: validate data_len before allocating skb in     sock_alloc_send_pskb() (bnc#765320, CVE-2012-2136).

  - fcaps: clear the same personality flags as suid when     fcaps are used (bnc#758260 CVE-2012-2123).

  - macvtap: zerocopy: validate vectors before building skb     (bnc#758243 CVE-2012-2119).

  - hfsplus: Fix potential buffer overflows (bnc#760902     CVE-2009-4020).

  - xfrm: take net hdr len into account for esp payload size     calculation (bnc#759545).

  - ext4: fix undefined behavior in ext4_fill_flex_info()     (bnc#757278).

  - igb: fix rtnl race in PM resume path (bnc#748859).

  - ixgbe: add missing rtnl_lock in PM resume path     (bnc#748859).

  - b43: allocate receive buffers big enough for max frame     len + offset (bnc#717749).

  - xenbus: Reject replies with payload >     XENSTORE_PAYLOAD_MAX.

  - xenbus_dev: add missing error checks to watch handling.

  - hwmon: (coretemp-xen) Fix TjMax detection for older     CPUs.

  - hwmon: (coretemp-xen) Relax target temperature range     check.

  - Refresh other Xen patches.

  - tlan: add cast needed for proper 64 bit operation     (bnc#756840).

  - dl2k: Tighten ioctl permissions (bnc#758813).

  - [media] cx22702: Fix signal strength.

  - fs: cachefiles: Add support for large files in     filesystem caching (bnc#747038).

  - bridge: correct IPv6 checksum after pull (bnc#738644).

  - bridge: fix a possible use after free (bnc#738644).

  - bridge: Pseudo-header required for the checksum of     ICMPv6 (bnc#738644).

  - bridge: mcast snooping, fix length check of snooped     MLDv1/2 (bnc#738644).

  - PCI/ACPI: Report ASPM support to BIOS if not disabled     from command line (bnc#714455).

  - ipc/sem.c: fix race with concurrent semtimedop()     timeouts and IPC_RMID (bnc#756203).

  - drm/i915/crt: Remove 0xa0 probe for VGA.

  - tty_audit: fix tty_audit_add_data live lock on audit     disabled (bnc#721366).

  - drm/i915: suspend fbdev device around suspend/hibernate     (bnc#732908).

  - dlm: Do not allocate a fd for peeloff (bnc#729247).

  - sctp: Export sctp_do_peeloff (bnc#729247).

  - i2c-algo-bit: Fix spurious SCL timeouts under heavy     load.

  - patches.fixes/epoll-dont-limit-non-nested.patch: Don't     limit non-nested epoll paths (bnc#676204).

  - Update patches.suse/sd_init.mark_majors_busy.patch     (bnc#744658).

  - igb: Fix for Alt MAC Address feature on 82580 and later     devices (bnc#746980).

  - mark busy sd majors as allocated (bug#744658).

  - regset: Return -EFAULT, not -EIO, on host-side memory     fault (bnc# 750079 CVE-2012-1097).

  - regset: Prevent NULL pointer reference on readonly     regsets (bnc#750079 CVE-2012-1097).

  - mm: memcg: Correct unregistring of events attached to     the same eventfd (CVE-2012-1146 bnc#750959).

  - befs: Validate length of long symbolic links     (CVE-2011-2928 bnc#713430).

  - si4713-i2c: avoid potential buffer overflow on si4713     (CVE-2011-2700 bnc#707332).

  - staging: comedi: fix infoleak to userspace     (CVE-2011-2909 bnc#711941).

  - hfs: add sanity check for file name length     (CVE-2011-4330 bnc#731673).

  - cifs: fix dentry refcount leak when opening a FIFO on     lookup (CVE-2012-1090 bnc#749569).

  - drm: integer overflow in drm_mode_dirtyfb_ioctl()     (CVE-2012-0044 bnc#740745).

  - xfs: fix acl count validation in xfs_acl_from_disk()     (CVE-2012-0038 bnc#740703).

  - xfs: validate acl count (CVE-2012-0038 bnc#740703).

  -     patches.fixes/xfs-fix-possible-memory-corruption-in-xfs_     readlink: Work around missing xfs_alert().

  - xfs: Fix missing xfs_iunlock() on error recovery path in     xfs_readlink() (CVE-2011-4077 bnc#726600).

  - xfs: Fix possible memory corruption in xfs_readlink     (CVE-2011-4077 bnc#726600).

  - ext4: make ext4_split_extent() handle error correctly.

  - ext4: ext4_ext_convert_to_initialized bug found in     extended FSX testing.

  - ext4: add ext4_split_extent_at() and     ext4_split_extent().

  - ext4: reimplement convert and split_unwritten     (CVE-2011-3638 bnc#726045).

  - patches.fixes/epoll-limit-paths.patch: epoll: limit     paths (bnc#676204 CVE-2011-1083).

  - patches.kabi/epoll-kabi-fix.patch: epoll: hide kabi     change in struct file (bnc#676204 CVE-2011-1083).

  - NAT/FTP: Fix broken conntrack (bnc#681639 bnc#466279     bnc#747660).

  - igmp: Avoid zero delay when receiving odd mixture of     IGMP queries (bnc#740448 CVE-2012-0207).

  - jbd2: clear BH_Delay & BH_Unwritten in     journal_unmap_buffer (bnc#745832 CVE-2011-4086).

  - AppArmor: fix oops in apparmor_setprocattr (bnc#717209     CVE-2011-3619).

  - Refresh patches.suse/SoN-22-netvm.patch. Clean and
    *working* patches.

  - Refresh patches.suse/SoN-22-netvm.patch. (bnc#683671)     Fix an rcu locking imbalance in the receive path     triggered when using vlans.

  - Fix mangled patch (invalid date) Although accepted by     `patch`, this is rejected by `git apply`

  - Fix mangled diff lines (leading space tab vs tab)     Although accepted by `patch`, these are rejected by `git     apply`

  - jbd/jbd2: validate sb->s_first in     journal_get_superblock() (bnc#730118).

  - fsnotify: don't BUG in fsnotify_destroy_mark()     (bnc#689860).

  - Fix     patches.fixes/x25-Handle-undersized-fragmented-skbs.patc     h (CVE-2010-3873 bnc#651219).

  - Fix     patches.fixes/x25-Prevent-skb-overreads-when-checking-ca     ll-user-da.patch (CVE-2010-3873 bnc#651219).

  - Fix     patches.fixes/x25-Validate-incoming-call-user-data-lengt     hs.patch (CVE-2010-3873 bnc#651219).

  - Fix     patches.fixes/x25-possible-skb-leak-on-bad-facilities.pa     tch (CVE-2010-3873 bnc#651219 CVE-2010-4164 bnc#653260).

  - Update     patches.fixes/econet-4-byte-infoleak-to-the-network.patc     h (bnc#681186 CVE-2011-1173). Fix reference.

  - hwmon: (w83627ehf) Properly report thermal diode     sensors.

  - nl80211: fix overflow in ssid_len (bnc#703410     CVE-2011-2517).

  - nl80211: fix check for valid SSID size in scan     operations (bnc#703410 CVE-2011-2517).

  - x25: Prevent skb overreads when checking call user data     (CVE-2010-3873 bnc#737624).

  - x25: Handle undersized/fragmented skbs (CVE-2010-3873     bnc#737624).

  - x25: Validate incoming call user data lengths     (CVE-2010-3873 bnc#737624).

  - x25: possible skb leak on bad facilities (CVE-2010-3873     bnc#737624).

  - net: Add a flow_cache_flush_deferred function     (bnc#737624).

  - xfrm: avoid possible oopse in xfrm_alloc_dst     (bnc#737624).

  - scm: lower SCM_MAX_FD (bnc#655696 CVE-2010-4249).

This kernel update fixes various bugs and security issues.

For bugfixes,

  - a lot of BTRFS bugs were fixed

  - a performance issue with transparent huge pages was     fixed which could have caused huge slowdowns when doing     I/O over e.g. USB sticks.

A flaw was found in the way the Linux kernel's Event Poll (epoll) subsystem handled large, nested epoll structures. A local, unprivileged user could use this flaw to cause a denial of service.

A malicious Network File System version 4 (NFSv4) server could return a crafted reply to a GETACL request, causing a denial of service on the client.

The rds_ib_xmit function in net/rds/ib_send.c in the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel 3.7.4 and earlier allows local users to cause a denial of service (BUG_ON and kernel panic) by establishing an RDS connection with the source IP address equal to the IPoIB interface's own IP address, as demonstrated by rds-ping.

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.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-2026 advisory.

  - 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. (CVE-2011-1083)

  - The copy_creds function in kernel/cred.c in the Linux kernel before 3.3.2 provides an invalid replacement     session keyring to a child process, which allows local users to cause a denial of service (panic) via a     crafted application that uses the fork system call. (CVE-2012-2745)

  - The epoll_ctl system call in fs/eventpoll.c in the Linux kernel before 3.2.24 does not properly handle     ELOOP errors in EPOLL_CTL_ADD operations, which allows local users to cause a denial of service (file-     descriptor consumption and system crash) via a crafted application that attempts to create a circular     epoll dependency. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1083.
    (CVE-2012-3375)

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

Description of changes:

* CVE-2012-2745: Denial-of-service in kernel key management.

A potential double-free of the replacement session keyring on fork() could result in a denial-of-service by a local, unprivileged user.


* CVE-2011-1083: Algorithmic denial of service in epoll.

A flaw was found in the way the Linux kernel's Event Poll (epoll) subsystem handled large, nested epoll structures. A local, unprivileged user could use this flaw to cause a denial of service.



[2.6.39-200.29.2.el5uek]
- epoll: clear the tfile_check_list on -ELOOP (Joe Jin) {CVE-2012-3375}
- Don't limit non-nested epoll paths (Jason Baron)
- epoll: kabi fixups for epoll limit wakeup paths (Joe Jin) {CVE-2011-1083}
- epoll: limit paths (Jason Baron)  {CVE-2011-1083}
- cred: copy_process() should clear child->replacement_session_keyring (Oleg    Nesterov)  {CVE-2012-2745}

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-0862 advisory.

  - 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. (CVE-2011-1083)

  - The NFSv4 implementation in the Linux kernel before 3.2.2 does not properly handle bitmap sizes in GETACL     replies, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive     number of bitmap words. (CVE-2011-4131)

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

From Red Hat Security Advisory 2012:0150 :

Updated kernel packages that fix one security issue, address several hundred bugs, and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 5. This is the eighth regular update.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

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

This update fixes the following security issue :

* A flaw was found in the way the Linux kernel's Event Poll (epoll) subsystem handled large, nested epoll structures. A local, unprivileged user could use this flaw to cause a denial of service.
(CVE-2011-1083, Moderate)

Red Hat would like to thank Nelson Elhage for reporting this issue.

These updated kernel packages include a number of bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 5.8 Technical Notes, linked to in the References, for information on the most significant of these changes.

All Red Hat Enterprise Linux 5 users are advised to install these updated packages, which correct these issues and add these enhancements. The system must be rebooted for this update to take effect.

The SUSE Linux Enterprise 11 SP1 kernel has been updated to the 2.6.32.59 stable release to fix a lot of bugs and security issues.

The following security issues have been fixed :

  - A use after free bug in hugetlb support could be used by     local attackers to crash the system. (CVE-2012-2133)

  - A NULL pointer dereference bug in the regsets proc file     could be used by local attackers to perhaps crash the     system. With mmap_min_addr is set and enabled,     exploitation is unlikely. (CVE-2012-1097)

  - A reference counting issue in CLONE_IO could be used by     local attackers to cause a denial of service (out of     memory). (CVE-2012-0879)

  - A file handle leak in CIFS code could be used by local     attackers to crash the system. (CVE-2012-1090)

  - Large nested epoll chains could be used by local     attackers to cause a denial of service (excessive CPU     consumption). (CVE-2011-1083)

  - When using KVM, programming a PIT timer without a     irqchip configuration, can be used to crash the kvm     guest. This likely can be done only by a privileged     guest user. (CVE-2011-4622)

  - A KVM 32bit guest crash in 'syscall' opcode handling was     fixed that could be caused by local attackers.
    (CVE-2012-0045)

  - Fixed a oops in jbd/jbd2 that could be caused by     specific filesystem access patterns. The following     non-security issues have been fixed:. (CVE-2011-4086)

X86 :

  - x86: fix the initialization of physnode_map.
    (bnc#748112)

  - x86: Allow bootmem reserves at greater than 8G node     offset within a node. (bnc#740895)

  - x86, tsc: Fix SMI induced variation in     quick_pit_calibrate(). (bnc#751322)

  - x86, efi: Work around broken firmware. (bnc#714507)     BONDING :

  - bonding: update speed/duplex for NETDEV_CHANGE.
    (bnc#752634)

  - bonding: comparing a u8 with -1 is always false.
    (bnc#752634)

  - bonding: start slaves with link down for ARP monitor.
    (bnc#752634)

  - bonding: send gratuitous ARP for all addresses     (bnc#752491). XFS :

  - xfs: Fix excessive inode syncing when project quota is     exceeded. (bnc#756448)

  - xfs: Fix oops on IO error during     xlog_recover_process_iunlinks() (bnc#716850). SCSI :

  - scsi/ses: Handle non-unique element descriptors.
    (bnc#749342, bnc#617344)

  - scsi/sd: mark busy sd majors as allocated (bug#744658).

  - scsi: Check for invalid sdev in scsi_prep_state_check()     (bnc#734300). MD/RAID :

  - md: fix possible corruption of array metadata on     shutdown.

  - md: ensure changes to write-mostly are reflected in     metadata. (bnc#755178)

  - md: do not set md arrays to readonly on shutdown     (bnc#740180, bnc#713148, bnc#734900). XEN :

  - smpboot: adjust ordering of operations.

  - x86-64: provide a memset() that can deal with 4Gb or     above at a time. (bnc#738528)

  - blkfront: properly fail packet requests. (bnc#745929)

  - Update Xen patches to 2.6.32.57.

  - xenbus: Reject replies with payload >     XENSTORE_PAYLOAD_MAX.

  - xenbus_dev: add missing error checks to watch handling.

  - Refresh other Xen patches. (bnc#652942, bnc#668194,     bnc#688079)

  - fix Xen-specific kABI issue in Linux 2.6.19. NFS :

  - NFSD: Fill in WCC data for REMOVE, RMDIR, MKNOD, and     MKDIR. (bnc#751880)

  - nfs: Include SYNC flag when comparing mount options with     NOAC flag. (bnc#745422)

  - NFS returns EIO for EDQUOT and others. (bnc#747028)

  - lockd: fix arg parsing for grace_period and timeout.
    (bnc#733761)

  - nfs: allow nfs4leasetime to be set before starting     servers. (bnc#733761)

  - nfs: handle d_revalidate of dot correctly (bnc#731809).
    S/390 :

  - ctcmpc: use correct idal word list for ctcmpc     (bnc#750171,LTC#79264).

  - qeth: synchronize discipline module loading     (bnc#747430,LTC#78788).

  - qdio: avoid race leading to stall when tolerating CQ     (bnc#737326,LTC#76599).

  - kernel: no storage key operations for invalid page table     entries (bnc#737326,LTC#77697). OTHER :

  - tlan: add cast needed for proper 64 bit operation.
    (bnc#756840)

  - dl2k: Tighten ioctl permissions. (bnc#758813)

  - tg3: Fix RSS ring refill race condition. (bnc#757917)

  - usbhid: fix error handling of not enough bandwidth.
    (bnc#704280)

  - pagecache limit: Fix the shmem deadlock. (bnc#755537)

  - tty_audit: fix tty_audit_add_data live lock on audit     disabled. (bnc#721366)

  - ixgbe: driver sets all WOL flags upon initialization so     that machine is powered on as soon at it is switched     off. (bnc#693639)

  - PCI: Set device power state to PCI_D0 for device without     native PM support. (bnc#752972)

  - dlm: Do not allocate a fd for peeloff. (bnc#729247)

  - sctp: Export sctp_do_peeloff. (bnc#729247)

  - epoll: Do not limit non-nested epoll paths. (bnc#676204)

  - mlx4: Limit MSI-X vector allocation. (bnc#624072)

  - mlx4: Changing interrupt scheme. (bnc#624072)

  - mlx4_en: Assigning TX irq per ring. (bnc#624072)

  - mlx4_en: Restoring RX buffer pointer in case of failure.
    (bnc#624072)

  - mlx4_en: using new mlx4 interrupt scheme. (bnc#624072)

  - igb: Fix for Alt MAC Address feature on 82580 and later     devices. (bnc#746980)

  - igb: Power down link when interface is down.
    (bnc#745699)

  - igb: use correct bits to identify if managability is     enabled. (bnc#743209)

  - intel_agp: Do not oops with zero stolen memory.
    (bnc#738679)

  - agp: fix scratch page cleanup. (bnc#738679)

  - hugetlb: add generic definition of NUMA_NO_NODE.
    (bnc#751844)

  - sched: Fix proc_sched_set_task(). (bnc#717994)

  - PM: Print a warning if firmware is requested when tasks     are frozen. (bnc#749886)

  - PM / Sleep: Fix freezer failures due to racy     usermodehelper_is_disabled(). (bnc#749886)

  - PM / Sleep: Fix read_unlock_usermodehelper() call.
    (bnc#749886)

  - firmware loader: allow builtin firmware load even if     usermodehelper is disabled. (bnc#749886)

  - PM / Hibernate: Enable usermodehelpers in     software_resume() error path. (bnc#744163)

  - ipv6: Allow inet6_dump_addr() to handle more than 64     addresses. (bnc#748279)

  - ipv6: fix refcnt problem related to POSTDAD state.
    (bnc#743619)

  - be2net: change to show correct physical link status.
    (bnc#727834)

  - be2net: changes to properly provide phy details.
    (bnc#727834)

  - aio: fix race between io_destroy() and io_submit().
    (bnc#747445 / bnc#611264)

  - intel-iommu: Check for identity mapping candidate using     system dma mask. (bnc#700449)

  - intel-iommu: Dont cache iova above 32bit. (bnc#700449)

  - intel-iommu: Add domain check in     domain_remove_one_dev_info. (bnc#700449)

  - intel-iommu: Provide option to enable 64-bit IOMMU pass     through mode. (bnc#700449)

  - intel-iommu: Remove Host Bridge devices from identity     mapping. (bnc#700449)

  - intel-iommu: Speed up processing of the identity_mapping     function. (bnc#700449)

  - intel-iommu: Use coherent DMA mask when requested.
    (bnc#700449)

  - 1: Fix accounting of softirq time when idle.
    (bnc#719793)

  - driver-core: fix race between device_register and     driver_register. (bnc#742358)

  - dcache: patches.fixes/large-hash-dcache_init-fix.patch:
    Fix oops when initializing large hash on > 16TB machine.
    (bnc#742210)

  - kdump: Save PG_compound or PG_head value in VMCOREINFO.
    (bnc#738503)

  - Update config files: disable NET_9P_RDMA. (bnc#720374)

  - cdc-wdm: fix race leading leading to memory corruption.
    (bnc#759544)

Updated kernel packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 6.2 Extended Update Support.

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.

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

This update fixes the following security issues :

* A NULL pointer dereference flaw was found in the nf_ct_frag6_reasm() function in the Linux kernel's netfilter IPv6 connection tracking implementation. A remote attacker could use this flaw to send specially crafted packets to a target system that is using IPv6 and also has the nf_conntrack_ipv6 kernel module loaded, causing it to crash. (CVE-2012-2744, Important)

* A flaw was found in the way the Linux kernel's Event Poll (epoll) subsystem handled large, nested epoll structures. A local, unprivileged user could use this flaw to cause a denial of service.
(CVE-2011-1083, Moderate)

Red Hat would like to thank an anonymous contributor working with the Beyond Security SecuriTeam Secure Disclosure program for reporting CVE-2012-2744, and Nelson Elhage for reporting CVE-2011-1083.

This update also fixes the following bugs :

* Attempting to turn on Data Center Bridging (DCB) on a port connected to a non-DCB switch port caused the system to become unresponsive or even terminate. This was because napi_poll routines in the ixgbe driver did not end the NAPI when data processing was complete. With this update, the ixgbe napi_poll routines have been fixed so that they now call the napi_complete() function when data processing has finished. This ensures that the NAPI is correctly disabled, and thus prevents possible hangs and crashes in this scenario. (BZ#814454)

* If a new file was created on a Network File System version 4 (NFSv4) share, the ownership was set to nfsnobody (-2) until it was possible to upcall to the idmapper. As a consequence, subsequent file system operations could incorrectly use '-2' for the user and group IDs for the given file, causing certain operations to fail. In reported cases, this issue also caused 'Viminfo file is not writable' errors for users running Vim with files on an NFSv4 share. (BZ#820962)

* Previously, the size of the multicast IGMP (Internet Group Management Protocol) snooping hash table for a bridge was limited to 256 entries even though the maximum is 512. This was due to the hash table size being incorrectly compared to the maximum hash table size, hash_max, and the following message could have been produced by the kernel :

Multicast hash table maximum reached, disabling snooping: vnet1, 512

With this update, the hash table value is correctly compared to the hash_max value, and the error message no longer occurs under these circumstances. (BZ#840021)

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

Updated kernel packages that fix two security issues, address several hundred bugs and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 6. This is the third regular update.

The Red Hat Security Response Team has rated this update as having moderate 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.

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

This update fixes the following security issues :

* A flaw was found in the way the Linux kernel's Event Poll (epoll) subsystem handled large, nested epoll structures. A local, unprivileged user could use this flaw to cause a denial of service.
(CVE-2011-1083, Moderate)

* A malicious Network File System version 4 (NFSv4) server could return a crafted reply to a GETACL request, causing a denial of service on the client. (CVE-2011-4131, Moderate)

Red Hat would like to thank Nelson Elhage for reporting CVE-2011-1083, and Andy Adamson for reporting CVE-2011-4131.

This update also fixes several hundred bugs and adds enhancements.
Refer to the Red Hat Enterprise Linux 6.3 Release Notes for information on the most significant of these changes, and the Technical Notes for further information, both linked to in the References.

All Red Hat Enterprise Linux 6 users are advised to install these updated packages, which correct these issues, and fix the bugs and add the enhancements noted in the Red Hat Enterprise Linux 6.3 Release Notes and Technical Notes. The system must be rebooted for this update to take effect.

The SUSE Linux Enterprise 11 SP2 kernel has been updated to 3.0.26, which fixes a lot of bugs and security issues.

The following security issues have been fixed :

  - A locking problem in transparent hugepage support could     be used by local attackers to potentially crash the     host, or via kvm a privileged guest user could crash the     kvm host system. (CVE-2012-1179)

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

  - A local attacker could oops the kernel using memory     control groups and eventfds. (CVE-2012-1146)

  - Limit the path length users can build using epoll() to     avoid local attackers consuming lots of kernel CPU time.
    (CVE-2011-1083)

  - The regset common infrastructure assumed that regsets     would always have .get and .set methods, but necessarily     .active methods. Unfortunately people have since written     regsets without .set method, so NULL pointer dereference     attacks were possible. (CVE-2012-1097)

  - Access to the /proc/pid/taskstats file requires root     access to avoid side channel (timing keypresses etc.)     attacks on other users. (CVE-2011-2494)

  - Fixed a oops in jbd/jbd2 that could be caused by     specific filesystem access patterns. (CVE-2011-4086)

  - A malicious NFSv4 server could have caused a oops in the     nfsv4 acl handling. (CVE-2011-4131)

  - Fixed a oops in jbd/jbd2 that could be caused by     mounting a malicious prepared filesystem. (Also included     are all fixes from the 3.0.14 -> 3.0.25 stable kernel     updates.). (CVE-2011-4132)

The following non-security issues have been fixed :

EFI :

  - efivars: add missing parameter to efi_pstore_read().
    BTRFS :

  - add a few error cleanups.

  - btrfs: handle errors when excluding super extents     (FATE#306586 bnc#751015).

  - btrfs: Fix missing goto in btrfs_ioctl_clone.

  - btrfs: Fixed mishandled -EAGAIN error case from     btrfs_split_item. (bnc#750459)

  - btrfs: disallow unequal data/metadata blocksize for     mixed block groups (FATE#306586).

  - btrfs: enhance superblock sanity checks (FATE#306586     bnc#749651).

  - btrfs: update message levels (FATE#306586).

  - btrfs 3.3-rc6 updates :

  - avoid setting ->d_op twice (FATE#306586 bnc#731387).

  - btrfs: fix wrong information of the directory in the     snapshot (FATE#306586).

  - btrfs: fix race in reada (FATE#306586).

  - btrfs: do not add both copies of DUP to reada extent     tree (FATE#306586).

  - btrfs: stop silently switching single chunks to raid0 on     balance (FATE#306586).

  - btrfs: fix locking issues in find_parent_nodes()     (FATE#306586).

  - btrfs: fix casting error in scrub reada code     (FATE#306586).

  - btrfs sync with upstream up to 3.3-rc5 (FATE#306586)

  - btrfs: Sector Size check during Mount

  - btrfs: avoid positive number with ERR_PTR

  - btrfs: return the internal error unchanged if     btrfs_get_extent_fiemap() call failed for     SEEK_DATA/SEEK_HOLE inquiry.

  - btrfs: fix trim 0 bytes after a device delete

  - btrfs: do not check DUP chunks twice

  - btrfs: fix memory leak in load_free_space_cache()

  - btrfs: delalloc for page dirtied out-of-band in fixup     worker

  - btrfs: fix structs where bitfields and spinlock/atomic     share 8B word.

  - btrfs: silence warning in raid array setup.

  - btrfs: honor umask when creating subvol root.

  - btrfs: fix return value check of extent_io_ops.

  - btrfs: fix deadlock on page lock when doing     auto-defragment.

  - btrfs: check return value of lookup_extent_mapping()     correctly.

  - btrfs: skip states when they does not contain bits to     clear.

  - btrfs: kick out redundant stuff in convert_extent_bit.

  - btrfs: fix a bug on overcommit stuff.

  - btrfs: be less strict on finding next node in     clear_extent_bit.

  - btrfs: improve error handling for btrfs_insert_dir_item     callers.

  - btrfs: make sure we update latest_bdev.

  - btrfs: add extra sanity checks on the path names in     btrfs_mksubvol.

  - btrfs: clear the extent uptodate bits during parent     transid failures.

  - btrfs: increase the global block reserve estimates.

  - btrfs: fix compiler warnings on 32 bit systems.

  - Clean up unused code, fix use of error-indicated pointer     in transaction teardown. (bnc#748854)

  - btrfs: fix return value check of extent_io_ops.

  - btrfs: fix deadlock on page lock when doing     auto-defragment.

  - btrfs: check return value of lookup_extent_mapping()     correctly.

  - btrfs: skip states when they does not contain bits to     clear.

  - btrfs: kick out redundant stuff in convert_extent_bit.

  - btrfs: fix a bug on overcommit stuff.

  - btrfs: be less strict on finding next node in     clear_extent_bit.

  - btrfs: do not reserve data with extents locked in     btrfs_fallocate.

  - btrfs: avoid positive number with ERR_PTR.

  - btrfs: return the internal error unchanged if     btrfs_get_extent_fiemap() call failed for     SEEK_DATA/SEEK_HOLE inquiry.

  - btrfs: fix trim 0 bytes after a device delete.

  - btrfs: do not check DUP chunks twice.

  - btrfs: fix memory leak in load_free_space_cache().

  - btrfs: fix permissions of new subvolume. (bnc#746373)

  - btrfs: set ioprio of scrub readahead to idle.

  - fix logic in condition in     BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS

  - fix incorrect exclusion of superblock from blockgroups.
    (bnc#751743)

  -     patches.suse/btrfs-8059-handle-errors-when-excluding-sup     er-extents.patch: fix incorrect default value.

  - fix aio/dio bio refcounting bnc#718918.

  - btrfs: fix locking issues in find_parent_nodes()

  - Btrfs: fix casting error in scrub reada code

  -     patches.suse/btrfs-8059-handle-errors-when-excluding-sup     er-extents.patch: Fix uninitialized variable.

  - btrfs: handle errors from read_tree_block. (bnc#748632)

  - btrfs: push-up errors from btrfs_num_copies.
    (bnc#748632)

  -     patches.suse/btrfs-8059-handle-errors-when-excluding-sup     er-extents.patch: disable due to potential corruptions     (bnc#751743) XFS :

  - XFS read/write calls do not generate DMAPI events.
    (bnc#751885)

  - xfs/dmapi: Remove cached vfsmount. (bnc#749417)

  - xfs: Fix oops on IO error during     xlog_recover_process_iunlinks() (bnc#716850). NFS :

  - nfs: Do not allow multiple mounts on same mountpoint     when using -o noac. (bnc#745422)

  - lockd: fix arg parsing for grace_period and timeout     (bnc#733761). MD :

  - raid10: Disable recovery when recovery cannot proceed.
    (bnc#751171)

  - md/bitmap: ensure to load bitmap when creating via     sysfs.

  - md: do not set md arrays to readonly on shutdown.
    (bnc#740180, bnc#713148, bnc#734900)

  - md: allow last device to be forcibly removed from     RAID1/RAID10. (bnc#746717)

  - md: allow re-add to failed arrays. (bnc#746717)

  - md: Correctly handle read failure from last working     device in RAID10. (bnc#746717)

  -     patches.suse/0003-md-raid1-add-failfast-handling-for-wri     tes.patch: Refresh to not crash when handling write     error on FailFast devices. bnc#747159

  - md/raid10: Fix kernel oops during drive failure.
    (bnc#750995)

  - patches.suse/md-re-add-to-failed: Update references.
    (bnc#746717)

  - md/raid10: handle merge_bvec_fn in member devices.

  - md/raid10 - support resizing some RAID10 arrays. Hyper-V :

  - update hyperv drivers to 3.3-rc7 and move them out of     staging: hv_timesource -> merged into core kernel     hv_vmbus -> drivers/hv/hv_vmbus hv_utils ->     drivers/hv/hv_utils hv_storvsc ->     drivers/scsi/hv_storvsc hv_netvsc ->     drivers/net/hyperv/hv_netvsc hv_mousevsc ->     drivers/hid/hid-hyperv add compat modalias for     hv_mousevsc update supported.conf rename all 333     patches, use msft-hv- and suse-hv- as prefix

  - net/hyperv: Use netif_tx_disable() instead of     netif_stop_queue() when necessary.

  - net/hyperv: rx_bytes should account the ether header     size.

  - net/hyperv: fix the issue that large packets be dropped     under bridge.

  - net/hyperv: Fix the page buffer when an RNDIS message     goes beyond page boundary.

  - net/hyperv: fix erroneous NETDEV_TX_BUSY use. SCSI :

  - sd: mark busy sd majors as allocated (bug#744658).

  - st: expand tape driver ability to write immediate     filemarks. (bnc#688996)

  - scsi scan: do not fail scans when host is in recovery     (bnc#747867). S/390 :

  - dasd: Implement block timeout handling. (bnc#746717)

  - callhome: fix broken proc interface and activate compid     (bnc#748862,LTC#79115).

  - ctcmpc: use correct idal word list for ctcmpc     (bnc#750173,LTC#79264).

  - Fix recovery in case of concurrent asynchronous     deliveries (bnc#748629,LTC#78309).

  - kernel: 3215 console deadlock (bnc#748629,LTC#78612).

  - qeth: synchronize discipline module loading     (bnc#748629,LTC#78788).

  - memory hotplug: prevent memory zone interleave     (bnc#748629,LTC#79113).

  - dasd: fix fixpoint divide exception in define_extent     (bnc#748629,LTC#79125).

  - kernel: incorrect kernel message tags     (bnc#744795,LTC#78356).

  - lcs: lcs offline failure (bnc#752484,LTC#79788).

  - qeth: add missing wake_up call (bnc#752484,LTC#79899).

  - dasd: Terminate inactive cqrs correctly. (bnc#750995)

  - dasd: detailed I/O errors. (bnc#746717)

  - patches.suse/dasd-blk-timeout.patch: Only activate     blk_timeout for failfast requests (bnc#753617). ALSA :

  - ALSA: hda - Set codec to D3 forcibly even if not used.
    (bnc#750426)

  - ALSA: hda - Add Realtek ALC269VC codec support.
    (bnc#748827)

  - ALSA: hda/realtek - Apply the coef-setup only to     ALC269VB. (bnc#748827)

  - ALSA: pcm - Export snd_pcm_lib_default_mmap() helper.
    (bnc#748384,bnc#738597)

  - ALSA: hda - Add snoop option. (bnc#748384,bnc#738597)

  - ALSA: HDA: Add support for new AMD products.
    (bnc#748384,bnc#738597)

  - ALSA: hda - Fix audio playback support on HP Zephyr     system. (bnc#749787)

  - ALSA: hda - Fix mute-LED VREF value for new HP laptops     (bnc#745741). EXT3 :

  - enable     patches.suse/ext3-increase-reservation-window.patch. DRM :

  - drm/i915: Force explicit bpp selection for     intel_dp_link_required. (bnc#749980)

  - drm/i915/dp: Dither down to 6bpc if it makes the mode     fit. (bnc#749980)

  - drm/i915/dp: Read more DPCD registers on connection     probe. (bnc#749980)

  - drm/i915: fixup interlaced bits clearing in PIPECONF on     PCH_SPLIT. (bnc#749980)

  - drm/i915: read full receiver capability field during DP     hot plug. (bnc#749980)

  - drm/intel: Fix initialization if startup happens in     interlaced mode [v2]. (bnc#749980)

  - drm/i915 IVY/SNB fix patches from upstream 3.3-rc5 &amp;
    rc6:
    patches.drivers/drm-i915-Prevent-a-machine-hang-by-check     ing-crtc-act,     patches.drivers/drm-i915-do-not-enable-RC6p-on-Sandy-Bri     dge,     patches.drivers/drm-i915-fix-operator-precedence-when-en     abling-RC6p,     patches.drivers/drm-i915-gen7-Disable-the-RHWO-optimizat     ion-as-it-ca,     patches.drivers/drm-i915-gen7-Implement-an-L3-caching-wo     rkaround,     patches.drivers/drm-i915-gen7-implement-rczunit-workarou     nd,     patches.drivers/drm-i915-gen7-work-around-a-system-hang-     on-IVB

  - drm/i915: Clear the TV sense state bits on cantiga to     make TV detection reliable. (bnc#750041)

  - drm/i915: Do not write DSPSURF for old chips.
    (bnc#747071)

  - drm: Do not delete DPLL Multiplier during DAC init.
    (bnc#728840)

  - drm: Set depth on low mem Radeon cards to 16 instead of     8. (bnc#746883)

  - patches.drivers/drm-i915-set-AUD_CONFIG_N_index-for-DP:
    Refresh. Updated the patch from the upstream.
    (bnc#722560)

  - Add a few missing drm/i915 fixes from upstream 3.2     kernel (bnc#744392) :

  - drm/i915: Sanitize BIOS debugging bits from PIPECONF.
    (bnc#751916)

  - drm/i915: Add lvds_channel module option. (bnc#739837)

  - drm/i915: Check VBIOS value for determining LVDS dual     channel mode, too. (bnc#739837)

  - agp: fix scratch page cleanup. (bnc#738679)

  - drm/i915: suspend fbdev device around suspend/hibernate     (bnc#732908). ACPI :

  - supported.conf: Add acpi_ipmi as supported (bnc#716971).
    MM :

  - cpusets: avoid looping when storing to mems_allowed if     one.

  - cpusets: avoid stall when updating mems_allowed for     mempolicy.

  - cpuset: mm: Reduce large amounts of memory barrier     related slowdown.

  - mm: make swapin readahead skip over holes.

  - mm: allow PF_MEMALLOC from softirq context.

  - mm: Ensure processes do not remain throttled under     memory pressure. (Swap over NFS (fate#304949,     bnc#747944).

  - mm: Allow sparsemem usemap allocations for very large     NUMA nodes. (bnc#749049)

  - backing-dev: fix wakeup timer races with     bdi_unregister(). (bnc#741824)

  - readahead: fix pipeline break caused by block plug.
    (bnc#746454)

  - Fix uninitialised variable warning and obey the     [get|put]_mems_allowed API. CIFS :

  - cifs: fix dentry refcount leak when opening a FIFO on     lookup (CVE-2012-1090 / bnc#749569). USB :

  - xhci: Fix encoding for HS bulk/control NAK rate.
    (bnc#750402)

  - USB: Fix handoff when BIOS disables host PCI device.
    (bnc#747878)

  - USB: Do not fail USB3 probe on missing legacy PCI IRQ.
    (bnc#749543)

  - USB: Adding #define in hub_configure() and hcd.c file.
    (bnc#714604)

  - USB: remove BKL comments. (bnc#714604)

  - xHCI: Adding #define values used for hub descriptor.
    (bnc#714604)

  - xHCI: Kick khubd when USB3 resume really completes.
    (bnc#714604)

  - xhci: Fix oops caused by more USB2 ports than USB3     ports. (bnc#714604)

  - USB/xhci: Enable remote wakeup for USB3 devices.
    (bnc#714604)

  - USB: Suspend functions before putting dev into U3.
    (bnc#714604)

  - USB/xHCI: Enable USB 3.0 hub remote wakeup. (bnc#714604)

  - USB: Refactor hub remote wake handling. (bnc#714604)

  - USB/xHCI: Support device-initiated USB 3.0 resume.
    (bnc#714604)

  - USB: Set wakeup bits for all children hubs. (bnc#714604)

  - USB: Turn on auto-suspend for USB 3.0 hubs. (bnc#714604)

  - USB: Set hub depth after USB3 hub reset. (bnc#749115)

  - xhci: Fix USB 3.0 device restart on resume. (bnc#745867)

  - xhci: Remove scary warnings about transfer issues.
    (bnc#745867)

  - xhci: Remove warnings about MSI and MSI-X capabilities     (bnc#745867). Other :

  - PCI / PCIe: Introduce command line option to disable     ARI. (bnc#742845)

  - PCI: Set device power state to PCI_D0 for device without     native PM support (bnc#752972). X86 :

  - x86/UV: Lower UV rtc clocksource rating. (bnc#748456)

  - x86, mce, therm_throt: Do not report power limit and     package level thermal throttle events in mcelog.
    (bnc#745876)

  - x86: Unlock nmi lock after kdb_ipi call. (bnc#745424)

  - x86, tsc: Fix SMI induced variation in     quick_pit_calibrate(). (bnc#751322) XEN :

  - Update Xen patches to 3.0.22.

  - xenbus_dev: add missing error checks to watch handling.

  - drivers/xen/: use strlcpy() instead of strncpy().

  - xenoprof: backward compatibility for changed     XENOPROF_ESCAPE_CODE.

  - blkfront: properly fail packet requests. (bnc#745929)

  - Refresh other Xen patches. (bnc#732070, bnc#742871)

  - xenbus: do not free other end details too early.

  - blkback: also call blkif_disconnect() when frontend     switched to closed.

  - gnttab: add deferred freeing logic.

  - blkback: failure to write 'feature-barrier' node is     non-fatal. Infiniband :

  - RDMA/cxgb4: Make sure flush CQ entries are collected on     connection close. (bnc#721587)

  - RDMA/cxgb4: Serialize calls to CQs comp_handler.
    (bnc#721587)

  - mlx4_en: Assigning TX irq per ring (bnc#624072).
    Bluetooth :

  - Bluetooth: Add Atheros AR3012 Maryann PID/VID supported     in ath3k. (bnc#732296)

  - Bluetooth: btusb: fix bInterval for high/super speed     isochronous endpoints (bnc#754052). SCTP :

  - dlm: Do not allocate a fd for peeloff. (bnc#729247)

  - sctp: Export sctp_do_peeloff (bnc#729247). Other :

  - qlge: Removing needless prints which are not.
    (bnc#718863)

  - ibft: Fix finding IBFT ACPI table on UEFI. (bnc#746579)

  - proc: Consider NO_HZ when printing idle and iowait     times. (bnc#705551)

  - procfs: do not confuse jiffies with cputime64_t.
    (bnc#705551)

  - procfs: do not overflow get_{idle,iowait}_time for nohz.
    (bnc#705551)

  - bfa: Do not return DID_ABORT on failure. (bnc#745400)

  - epoll: Do not limit non-nested epoll paths. (bnc#676204)

  - Bridge: Always send NETDEV_CHANGEADDR up on br MAC     change. (bnc#752408)

  - hp_accel: Ignore the error from lis3lv02d_poweron() at     resume. (bnc#751903)

  - watchdog: make sure the watchdog thread gets CPU on     loaded system. (bnc#738583)

Updated kernel packages that fix one security issue, address several hundred bugs, and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 5. This is the eighth regular update.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

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

This update fixes the following security issue :

* A flaw was found in the way the Linux kernel's Event Poll (epoll) subsystem handled large, nested epoll structures. A local, unprivileged user could use this flaw to cause a denial of service.
(CVE-2011-1083, Moderate)

Red Hat would like to thank Nelson Elhage for reporting this issue.

These updated kernel packages include a number of bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 5.8 Technical Notes, linked to in the References, for information on the most significant of these changes.

All Red Hat Enterprise Linux 5 users are advised to install these updated packages, which correct these issues and add these enhancements. The system must be rebooted for this update to take effect.

Rebase to upstream 3.1.1 kernel Fix boot regression on 64-bit EFI machines Update to the Linux 3.0.8 (2.6.40.8) stable release. Fix assorted security bugs. Bugfix update Update to the latest 3.0.7 stable kernel release which includes a variety of fixes.

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

Security update for various issues.
----------------------------------------------------------------------
-----=

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

Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. (CVE-2011-1927)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)

Timo Warns discovered that the LDM disk partition handling code did not correctly handle certain values. By inserting a specially crafted disk device, a local attacker could exploit this to gain root privileges. (CVE-2011-1017)

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)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

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)

Dan Rosenberg reported errors in the OSS (Open Sound System) MIDI interface. A local attacker on non-x86 systems might be able to cause a denial of service. (CVE-2011-1476)

Dan Rosenberg reported errors in the kernel's OSS (Open Sound System) driver for Yamaha FM synthesizer chips. A local user can exploit this to cause memory corruption, causing a denial of service or privilege escalation. (CVE-2011-1477)

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 MPT devices did not correctly validate certain values in ioctl calls. If these drivers were loaded, a local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2011-1494, CVE-2011-1495)

Tavis Ormandy discovered that the pidmap function did not correctly handle large requests. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1593)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598, CVE-2011-1748)

Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-1745, CVE-2011-2022)

Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service. (CVE-2011-1746)

Dan Rosenberg reported an error in the old ABI compatibility layer of ARM kernels. A local attacker could exploit this flaw to cause a denial of service or gain root privileges. (CVE-2011-1759)

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770)

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)

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)

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)

The linux kernel did not properly account for PTE pages when deciding which task to kill in out of memory conditions. A local, unprivileged could exploit this flaw to cause a denial of service. (CVE-2011-2498)

A flaw was found in the b43 driver in the Linux kernel. An attacker could use this flaw to cause a denial of service if the system has an active wireless interface using the b43 driver. (CVE-2011-3359)

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)

Dan Rosenberg discovered flaws in the linux Rose (X.25 PLP) layer used by amateur radio. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root.
(CVE-2011-4913).

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.

Dan Rosenberg discovered that IRDA did not correctly check the size of buffers. On non-x86 systems, a local attacker could exploit this to read kernel heap memory, leading to a loss of privacy. (CVE-2010-4529)

Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit.
(CVE-2010-4565)

Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2010-4656)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-0521)

Jens Kuehnel discovered that the InfiniBand driver contained a race condition. On systems using InfiniBand, a local attacker could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2011-0695)

Dan Rosenberg discovered that XFS did not correctly initialize memory.
A local attacker could make crafted ioctl calls to leak portions of kernel stack memory, leading to a loss of privacy. (CVE-2011-0711)

Rafael Dominguez Vega discovered that the caiaq Native Instruments USB driver did not correctly validate string lengths. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2011-0712)

Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. 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-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1013)

Marek Olsak discovered that the Radeon GPU drivers did not correctly validate certain registers. On systems with specific hardware, a local attacker could exploit this to write to arbitrary video memory.
(CVE-2011-1016)

Timo Warns discovered that the LDM disk partition handling code did not correctly handle certain values. By inserting a specially crafted disk device, a local attacker could exploit this to gain root privileges. (CVE-2011-1017)

Vasiliy Kulikov discovered that the CAP_SYS_MODULE capability was not needed to load kernel modules. A local attacker with the CAP_NET_ADMIN capability could load existing kernel modules, possibly increasing the attack surface available on the system. (CVE-2011-1019)

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)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

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 some ALSA drivers did not correctly check the adapter index during ioctl calls. If this driver was loaded, a local attacker could make a specially crafted ioctl call to gain root privileges. (CVE-2011-1169)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

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)

Julien Tinnes discovered that the kernel did not correctly validate the signal structure from tkill(). A local attacker could exploit this to send signals to arbitrary threads, possibly bypassing expected restrictions. (CVE-2011-1182)

Dan Rosenberg reported errors in the OSS (Open Sound System) MIDI interface. A local attacker on non-x86 systems might be able to cause a denial of service. (CVE-2011-1476)

Dan Rosenberg reported errors in the kernel's OSS (Open Sound System) driver for Yamaha FM synthesizer chips. A local user can exploit this to cause memory corruption, causing a denial of service or privilege escalation. (CVE-2011-1477)

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)

Dan Rosenberg discovered that MPT devices did not correctly validate certain values in ioctl calls. If these drivers were loaded, a local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2011-1494, CVE-2011-1495)

Tavis Ormandy discovered that the pidmap function did not correctly handle large requests. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1593)

Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-1745, CVE-2011-2022)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1748)

A flaw was found in the b43 driver in the Linux kernel. An attacker could use this flaw to cause a denial of service if the system has an active wireless interface using the b43 driver. (CVE-2011-3359)

Maynard Johnson discovered that on POWER7, certain speculative events may raise a performance monitor exception. A local attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2011-4611)

Dan Rosenberg discovered flaws in the linux Rose (X.25 PLP) layer used by amateur radio. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root.
(CVE-2011-4913).

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.

Brad Spengler discovered that the kernel did not correctly account for userspace memory allocations during exec() calls. A local attacker could exploit this to consume all system memory, leading to a denial of service. (CVE-2010-4243)

Alexander Duyck discovered that the Intel Gigabit Ethernet driver did not correctly handle certain configurations. If such a device was configured without VLANs, a remote attacker could crash the system, leading to a denial of service. (CVE-2010-4263)

Nelson Elhage discovered that Econet did not correctly handle AUN packets over UDP. A local attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2010-4342)

Dan Rosenberg discovered that IRDA did not correctly check the size of buffers. On non-x86 systems, a local attacker could exploit this to read kernel heap memory, leading to a loss of privacy. (CVE-2010-4529)

Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit.
(CVE-2010-4565)

Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2010-4656)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-0521)

Jens Kuehnel discovered that the InfiniBand driver contained a race condition. On systems using InfiniBand, a local attacker could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2011-0695)

Dan Rosenberg discovered that XFS did not correctly initialize memory.
A local attacker could make crafted ioctl calls to leak portions of kernel stack memory, leading to a loss of privacy. (CVE-2011-0711)

Rafael Dominguez Vega discovered that the caiaq Native Instruments USB driver did not correctly validate string lengths. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2011-0712)

Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. 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-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1013)

Marek Olsak discovered that the Radeon GPU drivers did not correctly validate certain registers. On systems with specific hardware, a local attacker could exploit this to write to arbitrary video memory.
(CVE-2011-1016)

Vasiliy Kulikov discovered that the CAP_SYS_MODULE capability was not needed to load kernel modules. A local attacker with the CAP_NET_ADMIN capability could load existing kernel modules, possibly increasing the attack surface available on the system. (CVE-2011-1019)

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)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

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)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

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)

Julien Tinnes discovered that the kernel did not correctly validate the signal structure from tkill(). A local attacker could exploit this to send signals to arbitrary threads, possibly bypassing expected restrictions. (CVE-2011-1182)

Dan Rosenberg reported errors in the OSS (Open Sound System) MIDI interface. A local attacker on non-x86 systems might be able to cause a denial of service. (CVE-2011-1476)

Dan Rosenberg reported errors in the kernel's OSS (Open Sound System) driver for Yamaha FM synthesizer chips. A local user can exploit this to cause memory corruption, causing a denial of service or privilege escalation. (CVE-2011-1477)

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 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)

A flaw was found in the b43 driver in the Linux kernel. An attacker could use this flaw to cause a denial of service if the system has an active wireless interface using the b43 driver. (CVE-2011-3359)

Maynard Johnson discovered that on POWER7, certain speculative events may raise a performance monitor exception. A local attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2011-4611)

Dan Rosenberg discovered flaws in the linux Rose (X.25 PLP) layer used by amateur radio. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root.
(CVE-2011-4913).

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 CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2012-0862.

ID	Name	Product	Family	Severity
83611	SUSE SLES11 Security Update : kernel (SUSE-SU-2014:0287-1)	Nessus	SuSE Local Security Checks	high
79507	OracleVM 2.2 : kernel (OVMSA-2013-0039)	Nessus	OracleVM Local Security Checks	high
79283	RHEL 5 : rhev-hypervisor5 (RHSA-2012:0168)	Nessus	Red Hat Local Security Checks	high
74801	openSUSE Security Update : kernel (openSUSE-SU-2012:1439-1)	Nessus	SuSE Local Security Checks	critical
74658	openSUSE Security Update : Kernel (openSUSE-SU-2012:0799-1)	Nessus	SuSE Local Security Checks	critical
74604	openSUSE Security Update : kernel (openSUSE-SU-2012:0540-1)	Nessus	SuSE Local Security Checks	critical
69590	Amazon Linux AMI : kernel (ALAS-2012-100)	Nessus	Amazon Linux Local Security Checks	medium
69581	Amazon Linux AMI : kernel (ALAS-2011-22)	Nessus	Amazon Linux Local Security Checks	medium
68679	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel Security (ELSA-2012-2026)	Nessus	Oracle Linux Local Security Checks	medium
68678	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2025)	Nessus	Oracle Linux Local Security Checks	medium
68554	Oracle Linux 6 : Oracle / Linux / 6 / kernel (ELSA-2012-0862)	Nessus	Oracle Linux Local Security Checks	medium
68468	Oracle Linux 5 : kernel (ELSA-2012-0150)	Nessus	Oracle Linux Local Security Checks	medium
64173	SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 6227 / 6229 / 6230)	Nessus	SuSE Local Security Checks	high
64050	RHEL 6 : kernel (RHSA-2012:1129)	Nessus	Red Hat Local Security Checks	high
59925	CentOS 6 : kernel (CESA-2012:0862)	Nessus	CentOS Local Security Checks	medium
59590	RHEL 6 : kernel (RHSA-2012:0862)	Nessus	Red Hat Local Security Checks	medium
58845	SuSE 11.2 Security Update : Linux kernel (SAT Patch Numbers 6163 / 6164 / 6172)	Nessus	SuSE Local Security Checks	critical
58052	RHEL 5 : kernel (RHSA-2012:0150)	Nessus	Red Hat Local Security Checks	medium
56865	Fedora 15 : kernel-2.6.41.1-1.fc15 (2011-15856)	Nessus	Fedora Local Security Checks	medium
56721	Fedora 14 : kernel-2.6.35.14-103.fc14 (2011-15241)	Nessus	Fedora Local Security Checks	medium
55591	Ubuntu 11.04 : linux vulnerabilities (USN-1167-1)	Nessus	Ubuntu Local Security Checks	medium
55454	Ubuntu 10.10 : linux vulnerabilities (USN-1160-1)	Nessus	Ubuntu Local Security Checks	high
55104	Ubuntu 10.04 LTS : linux, linux-ec2 vulnerabilities (USN-1141-1)	Nessus	Ubuntu Local Security Checks	high
801520	CentOS RHSA-2012-0862 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2011-1083

medium

Tenable Plugins

high

high

high

critical

critical

critical

medium

medium

medium

medium

medium

medium

high

high

medium

medium

critical

medium

medium

medium

medium

high

high

high