The 3.14.23 stable update contains a number of important fixes across the tree. Various security fixes for KVM and SCTP

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.

An information leak in the Linux kernel was discovered that could leak the high 16 bits of the kernel stack address on 32-bit Kernel Virtual Machine (KVM) paravirt guests. A user in the guest OS could exploit this leak to obtain information that could potentially be used to aid in attacking the kernel. (CVE-2014-8134)

Rabin Vincent, Robert Swiecki, Russell King discovered that the ftrace subsystem of the Linux kernel does not properly handle private syscall numbers. A local user could exploit this flaw to cause a denial of service (OOPS). (CVE-2014-7826)

A flaw in the handling of malformed ASCONF chunks by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel was discovered. A remote attacker could exploit this flaw to cause a denial of service (system crash). (CVE-2014-3673)

A flaw in the handling of duplicate ASCONF chunks by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel was discovered. A remote attacker could exploit this flaw to cause a denial of service (panic). (CVE-2014-3687)

It was discovered that excessive queuing by SCTP (Stream Control Transmission Protocol) implementation in the Linux kernel can cause memory pressure. A remote attacker could exploit this flaw to cause a denial of service. (CVE-2014-3688)

Rabin Vincent, Robert Swiecki, Russell Kinglaw discovered a flaw in how the perf subsystem of the Linux kernel handles private systecall numbers. A local user could exploit this to cause a denial of service (OOPS) or bypass ASLR protections via a crafted application.
(CVE-2014-7825)

Andy Lutomirski discovered a flaw in how the Linux kernel handles pivot_root when used with a chroot directory. A local user could exploit this flaw to cause a denial of service (mount-tree loop).
(CVE-2014-7970)

Dmitry Monakhov discovered a race condition in the ext4_file_write_iter function of the Linux kernel's ext4 filesystem. A local user could exploit this flaw to cause a denial of service (file unavailability). (CVE-2014-8086)

The KVM (kernel virtual machine) subsystem of the Linux kernel miscalculates the number of memory pages during the handling of a mapping failure. A guest OS user could exploit this to cause a denial of service (host OS page unpinning) or possibly have unspecified other impact by leveraging guest OS privileges. (CVE-2014-8369)

Andy Lutomirski discovered that the Linux kernel does not properly handle faults associated with the Stack Segment (SS) register on the x86 architecture. A local attacker could exploit this flaw to cause a denial of service (panic). (CVE-2014-9090).

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.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security 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.

* A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS (stack segment) fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system.
(CVE-2014-9322, Important)

* A flaw was found in the way the Linux kernel's SCTP implementation handled malformed or duplicate Address Configuration Change Chunks (ASCONF). A remote attacker could use either of these flaws to crash the system. (CVE-2014-3673, CVE-2014-3687, Important)

* A flaw was found in the way the Linux kernel's SCTP implementation handled the association's output queue. A remote attacker could send specially crafted packets that would cause the system to use an excessive amount of memory, leading to a denial of service.
(CVE-2014-3688, Important)

* A stack overflow flaw caused by infinite recursion was found in the way the Linux kernel's UDF file system implementation processed indirect ICBs. An attacker with physical access to the system could use a specially crafted UDF image to crash the system. (CVE-2014-6410, Low)

* It was found that the Linux kernel's networking implementation did not correctly handle the setting of the keepalive socket option on raw sockets. A local user able to create a raw socket could use this flaw to crash the system. (CVE-2012-6657, Low)

* It was found that the parse_rock_ridge_inode_internal() function of the Linux kernel's ISOFS implementation did not correctly check relocated directories when processing Rock Ridge child link (CL) tags.
An attacker with physical access to the system could use a specially crafted ISO image to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-5471, CVE-2014-5472, Low)

Red Hat would like to thank Andy Lutomirski for reporting CVE-2014-9322. The CVE-2014-3673 issue was discovered by Liu Wei of Red Hat.

Bug fixes :

* This update fixes a race condition issue between the sock_queue_err_skb function and sk_forward_alloc handling in the socket error queue (MSG_ERRQUEUE), which could occasionally cause the kernel, for example when using PTP, to incorrectly track allocated memory for the error queue, in which case a traceback would occur in the system log. (BZ#1155427)

* The zcrypt device driver did not detect certain crypto cards and the related domains for crypto adapters on System z and s390x architectures. Consequently, it was not possible to run the system on new crypto hardware. This update enables toleration mode for such devices so that the system can make use of newer crypto hardware.
(BZ#1158311)

* After mounting and unmounting an XFS file system several times consecutively, the umount command occasionally became unresponsive.
This was caused by the xlog_cil_force_lsn() function that was not waiting for completion as expected. With this update, xlog_cil_force_lsn() has been modified to correctly wait for completion, thus fixing this bug. (BZ#1158325)

* When using the ixgbe adapter with disabled LRO and the tx-usec or rs-usec variables set to 0, transmit interrupts could not be set lower than the default of 8 buffered tx frames. Consequently, a delay of TCP transfer occurred. The restriction of a minimum of 8 buffered frames has been removed, and the TCP delay no longer occurs. (BZ#1158326)

* The offb driver has been updated for the QEMU standard VGA adapter, fixing an incorrect displaying of colors issue. (BZ#1158328)

* Under certain circumstances, when a discovered MTU expired, the IPv6 connection became unavailable for a short period of time. This bug has been fixed, and the connection now works as expected. (BZ#1161418)

* A low throughput occurred when using the dm-thin driver to write to unprovisioned or shared chunks for a thin pool with the chunk size bigger than the max_sectors_kb variable. (BZ#1161420)

* Large write workloads on thin LVs could cause the iozone and smallfile utilities to terminate unexpectedly. (BZ#1161421)

- A flaw was found in the way the Linux kernel's SCTP     implementation handled malformed or duplicate Address     Configuration Change Chunks (ASCONF). A remote attacker     could use either of these flaws to crash the system.
    (CVE-2014-3673, CVE-2014-3687, Important)

  - A flaw was found in the way the Linux kernel's SCTP     implementation handled the association's output queue. A     remote attacker could send specially crafted packets     that would cause the system to use an excessive amount     of memory, leading to a denial of service.
    (CVE-2014-3688, Important)

  - A stack overflow flaw caused by infinite recursion was     found in the way the Linux kernel's UDF file system     implementation processed indirect ICBs. An attacker with     physical access to the system could use a specially     crafted UDF image to crash the system. (CVE-2014-6410,     Low)

  - It was found that the Linux kernel's networking     implementation did not correctly handle the setting of     the keepalive socket option on raw sockets. A local user     able to create a raw socket could use this flaw to crash     the system. (CVE-2012-6657, Low)

  - It was found that the parse_rock_ridge_inode_internal()     function of the Linux kernel's ISOFS implementation did     not correctly check relocated directories when     processing Rock Ridge child link (CL) tags. An attacker     with physical access to the system could use a specially     crafted ISO image to crash the system or, potentially,     escalate their privileges on the system. (CVE-2014-5471,     CVE-2014-5472, Low)

Bug fixes :

  - This update fixes a race condition issue between the     sock_queue_err_skb function and sk_forward_alloc     handling in the socket error queue (MSG_ERRQUEUE), which     could occasionally cause the kernel, for example when     using PTP, to incorrectly track allocated memory for the     error queue, in which case a traceback would occur in     the system log.

  - The zcrypt device driver did not detect certain crypto     cards and the related domains for crypto adapters on     System z and s390x architectures. Consequently, it was     not possible to run the system on new crypto hardware.
    This update enables toleration mode for such devices so     that the system can make use of newer crypto hardware.

  - After mounting and unmounting an XFS file system several     times consecutively, the umount command occasionally     became unresponsive. This was caused by the     xlog_cil_force_lsn() function that was not waiting for     completion as expected. With this update,     xlog_cil_force_lsn() has been modified to correctly wait     for completion, thus fixing this bug.

  - When using the ixgbe adapter with disabled LRO and the     tx-usec or rs- usec variables set to 0, transmit     interrupts could not be set lower than the default of 8     buffered tx frames. Consequently, a delay of TCP     transfer occurred. The restriction of a minimum of 8     buffered frames has been removed, and the TCP delay no     longer occurs.

  - The offb driver has been updated for the QEMU standard     VGA adapter, fixing an incorrect displaying of colors     issue.

  - Under certain circumstances, when a discovered MTU     expired, the IPv6 connection became unavailable for a     short period of time. This bug has been fixed, and the     connection now works as expected.

  - A low throughput occurred when using the dm-thin driver     to write to unprovisioned or shared chunks for a thin     pool with the chunk size bigger than the max_sectors_kb     variable.

  - Large write workloads on thin LVs could cause the iozone     and smallfile utilities to terminate unexpectedly.

The SUSE Linux Enterprise 11 Service Pack 3 kernel has been updated to fix various bugs and security issues.

The following security bugs have been fixed :

  - The __request_module function in kernel/kmod.c in the     Linux kernel before 3.4 did not set a certain killable     attribute, which allowed local users to cause a denial     of service (memory consumption) via a crafted     application. (bnc#779488). (CVE-2012-4398)

  - drivers/hid/hid-zpff.c in the Human Interface Device     (HID) subsystem in the Linux kernel through 3.11, when     CONFIG_HID_ZEROPLUS is enabled, allowed physically     proximate attackers to cause a denial of service     (heap-based out-of-bounds write) via a crafted device.
    (bnc#835839). (CVE-2013-2889)

  - The Human Interface Device (HID) subsystem in the Linux     kernel through 3.11, when CONFIG_LOGITECH_FF,     CONFIG_LOGIG940_FF, or CONFIG_LOGIWHEELS_FF is enabled,     allowed physically proximate attackers to cause a denial     of service (heap-based out-of-bounds write) via a     crafted device, related to (1) drivers/hid/hid-lgff.c,     (2) drivers/hid/hid-lg3ff.c, and (3)     drivers/hid/hid-lg4ff.c. (bnc#835839). (CVE-2013-2893)

  - Multiple array index errors in     drivers/hid/hid-multitouch.c in the Human Interface     Device (HID) subsystem in the Linux kernel through 3.11,     when CONFIG_HID_MULTITOUCH is enabled, allowed     physically proximate attackers to cause a denial of     service (heap memory corruption, or NULL pointer     dereference and OOPS) via a crafted device.
    (bnc#835839). (CVE-2013-2897)

  - drivers/hid/hid-picolcd_core.c in the Human Interface     Device (HID) subsystem in the Linux kernel through 3.11,     when CONFIG_HID_PICOLCD is enabled, allowed physically     proximate attackers to cause a denial of service (NULL     pointer dereference and OOPS) via a crafted device.
    (bnc#835839). (CVE-2013-2899)

  - The Linux kernel before 3.12.4 updates certain length     values before ensuring that associated data structures     have been initialized, which allowed local users to     obtain sensitive information from kernel stack memory     via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system     call, related to net/ipv4/ping.c, net/ipv4/raw.c,     net/ipv4/udp.c, net/ipv6/raw.c, and net/ipv6/udp.c.
    (bnc#853040, bnc#857643). (CVE-2013-7263)

  - Multiple stack-based buffer overflows in the     magicmouse_raw_event function in     drivers/hid/hid-magicmouse.c in the Magic Mouse HID     driver in the Linux kernel through 3.16.3 allowed     physically proximate attackers to cause a denial of     service (system crash) or possibly execute arbitrary     code via a crafted device that provides a large amount     of (1) EHCI or (2) XHCI data associated with an event.
    (bnc#896382). (CVE-2014-3181)

  - The report_fixup functions in the HID subsystem in the     Linux kernel before 3.16.2 allowed physically proximate     attackers to cause a denial of service (out-of-bounds     write) via a crafted device that provides a small report     descriptor, related to (1) drivers/hid/hid-cherry.c, (2)     drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4)     drivers/hid/hid-monterey.c, (5)     drivers/hid/hid-petalynx.c, and (6)     drivers/hid/hid-sunplus.c. (bnc#896390). (CVE-2014-3184)

  - Multiple buffer overflows in the     command_port_read_callback function in     drivers/usb/serial/whiteheat.c in the Whiteheat USB     Serial Driver in the Linux kernel before 3.16.2 allowed     physically proximate attackers to execute arbitrary code     or cause a denial of service (memory corruption and     system crash) via a crafted device that provides a large     amount of (1) EHCI or (2) XHCI data associated with a     bulk response. (bnc#896391). (CVE-2014-3185)

  - Buffer overflow in the picolcd_raw_event function in     devices/hid/hid-picolcd_core.c in the PicoLCD HID device     driver in the Linux kernel through 3.16.3, as used in     Android on Nexus 7 devices, allowed physically proximate     attackers to cause a denial of service (system crash) or     possibly execute arbitrary code via a crafted device     that sends a large report. (bnc#896392). (CVE-2014-3186)

  - The kvm_iommu_map_pages function in virt/kvm/iommu.c in     the Linux kernel through 3.16.1 miscalculated the number     of pages during the handling of a mapping failure, which     allowed guest OS users to (1) cause a denial of service     (host OS memory corruption) or possibly have unspecified     other impact by triggering a large gfn value or (2)     cause a denial of service (host OS memory consumption)     by triggering a small gfn value that leads to     permanently pinned pages. (bnc#892782). (CVE-2014-3601)

  - The WRMSR processing functionality in the KVM subsystem     in the Linux kernel through 3.17.2 did not properly     handle the writing of a non-canonical address to a     model-specific register, which allowed guest OS users to     cause a denial of service (host OS crash) by leveraging     guest OS privileges, related to the wrmsr_interception     function in arch/x86/kvm/svm.c and the handle_wrmsr     function in arch/x86/kvm/vmx.c. (bnc#899192).
    (CVE-2014-3610)

  - arch/x86/kvm/vmx.c in the KVM subsystem in the Linux     kernel through 3.17.2 did not have an exit handler for     the INVVPID instruction, which allowed guest OS users to     cause a denial of service (guest OS crash) via a crafted     application. (bnc#899192). (CVE-2014-3646)

  - arch/x86/kvm/emulate.c in the KVM subsystem in the Linux     kernel through 3.17.2 did not properly perform RIP     changes, which allowed guest OS users to cause a denial     of service (guest OS crash) via a crafted application.
    (bnc#899192). (CVE-2014-3647)

  - The SCTP implementation in the Linux kernel through     3.17.2 allowed remote attackers to cause a denial of     service (system crash) via a malformed ASCONF chunk,     related to net/sctp/sm_make_chunk.c and     net/sctp/sm_statefuns.c. (bnc#902346, bnc#902349).
    (CVE-2014-3673)

  - arch/x86/kernel/entry_32.S in the Linux kernel through     3.15.1 on 32-bit x86 platforms, when syscall auditing is     enabled and the sep CPU feature flag is set, allowed     local users to cause a denial of service (OOPS and     system crash) via an invalid syscall number, as     demonstrated by number 1000. (bnc#883724).
    (CVE-2014-4508)

  - * DISPUTED * Multiple integer overflows in the     lzo1x_decompress_safe function in     lib/lzo/lzo1x_decompress_safe.c in the LZO decompressor     in the Linux kernel before 3.15.2 allowed     context-dependent attackers to cause a denial of service     (memory corruption) via a crafted Literal Run. NOTE: the     author of the LZO algorithms says: The Linux kernel is     not affected; media hype. (bnc#883948). (CVE-2014-4608)

  - kernel/trace/trace_syscalls.c in the Linux kernel     through 3.17.2 did not properly handle private syscall     numbers during use of the ftrace subsystem, which     allowed local users to gain privileges or cause a denial     of service (invalid pointer dereference) via a crafted     application. (bnc#904013). (CVE-2014-7826)

  - An SCTP server doing ASCONF would panic on malformed     INIT ping-of-death. (bnc#905100). (CVE-2014-7841)

  - The ieee80211_fragment function in net/mac80211/tx.c in     the Linux kernel before 3.13.5 did not properly maintain     a certain tail pointer, which allowed remote attackers     to obtain sensitive cleartext information by reading     packets. (bnc#904700). (CVE-2014-8709)

  - A local user with write access could have used this flaw     to crash the kernel or elevate privileges (bnc#905522).
    The following non-security bugs have been fixed:.
    (CVE-2014-8884)

  - Build the KOTD against the SP3 Update project

  - HID: fix kabi breakage.

  - NFS: Provide stub nfs_fscache_wait_on_invalidate() for     when CONFIG_NFS_FSCACHE=n.

  - NFS: fix inverted test for delegation in     nfs4_reclaim_open_state. (bnc#903331)

  - NFS: remove incorrect Lock reclaim failed! warning.
    (bnc#903331)

  - NFSv4: nfs4_open_done first must check that GETATTR     decoded a file type. (bnc#899574)

  - PCI: pciehp: Clear Data Link Layer State Changed during     init. (bnc#898295)

  - PCI: pciehp: Enable link state change notifications.
    (bnc#898295)

  - PCI: pciehp: Handle push button event asynchronously.
    (bnc#898295)

  - PCI: pciehp: Make check_link_active() non-static.
    (bnc#898295)

  - PCI: pciehp: Use link change notifications for hot-plug     and removal. (bnc#898295)

  - PCI: pciehp: Use per-slot workqueues to avoid deadlock.
    (bnc#898295)

  - PCI: pciehp: Use symbolic constants, not hard-coded     bitmask. (bnc#898295)

  - PM / hibernate: Iterate over set bits instead of PFNs in     swsusp_free(). (bnc#860441)

  - be2net: Fix invocation of be_close() after be_clear().
    (bnc#895468)

  - block: Fix bogus partition statistics reports.
    (bnc#885077 / bnc#891211)

  - block: Fix computation of merged request priority.

  - btrfs: Fix wrong device size when we are resizing the     device.

  - btrfs: Return right extent when fiemap gives unaligned     offset and len.

  - btrfs: abtract out range locking in clone ioctl().

  - btrfs: always choose work from prio_head first.

  - btrfs: balance delayed inode updates.

  - btrfs: cache extent states in defrag code path.

  - btrfs: check file extent type before anything else.
    (bnc#897694)

  - btrfs: clone, do not create invalid hole extent map.

  - btrfs: correctly determine if blocks are shared in     btrfs_compare_trees.

  - btrfs: do not bug_on if we try to cow a free space cache     inode.

  - btrfs: ensure btrfs_prev_leaf does not miss 1 item.

  - btrfs: ensure readers see new data after a clone     operation.

  - btrfs: fill_holes: Fix slot number passed to     hole_mergeable() call.

  - btrfs: filter invalid arg for btrfs resize.

  - btrfs: fix EINVAL checks in btrfs_clone.

  - btrfs: fix EIO on reading file after ioctl clone works     on it.

  - btrfs: fix a crash of clone with inline extents split.

  - btrfs: fix crash of compressed writes. (bnc#898375)

  - btrfs: fix crash when starting transaction.

  - btrfs: fix deadlock with nested trans handles.

  - btrfs: fix hang on error (such as ENOSPC) when writing     extent pages.

  - btrfs: fix leaf corruption after __btrfs_drop_extents.

  - btrfs: fix race between balance recovery and root     deletion.

  - btrfs: fix wrong extent mapping for DirectIO.

  - btrfs: handle a missing extent for the first file     extent.

  - btrfs: limit delalloc pages outside of     find_delalloc_range. (bnc#898375)

  - btrfs: read lock extent buffer while walking backrefs.

  - btrfs: remove unused wait queue in struct extent_buffer.

  - btrfs: replace EINVAL with ERANGE for resize when     ULLONG_MAX.

  - btrfs: replace error code from btrfs_drop_extents.

  - btrfs: unlock extent and pages on error in     cow_file_range.

  - btrfs: unlock inodes in correct order in clone ioctl.

  - btrfs_ioctl_clone: Move clone code into its own     function.

  - cifs: delay super block destruction until all     cifsFileInfo objects are gone. (bnc#903653)

  - drm/i915: Flush the PTEs after updating them before     suspend. (bnc#901638)

  - drm/i915: Undo gtt scratch pte unmapping again.
    (bnc#901638)

  - ext3: return 32/64-bit dir name hash according to usage     type. (bnc#898554)

  - ext4: return 32/64-bit dir name hash according to usage     type. (bnc#898554)

  - fix: use after free of xfs workqueues. (bnc#894895)

  - fs: add new FMODE flags: FMODE_32bithash and     FMODE_64bithash. (bnc#898554)

  - futex: Ensure get_futex_key_refs() always implies a     barrier (bnc#851603 (futex scalability series)).

  - futex: Fix a race condition between REQUEUE_PI and task     death (bnc#851603 (futex scalability series)).

  - ipv6: add support of peer address. (bnc#896415)

  - ipv6: fix a refcnt leak with peer addr. (bnc#896415)

  - megaraid_sas: Disable fastpath writes for non-RAID0.
    (bnc#897502)

  - mm: change __remove_pages() to call     release_mem_region_adjustable(). (bnc#891790)

  - netxen: Fix link event handling. (bnc#873228)

  - netxen: fix link notification order. (bnc#873228)

  - nfsd: rename int access to int may_flags in nfsd_open().
    (bnc#898554)

  - nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes).
    (bnc#898554)

  - ocfs2: fix NULL pointer dereference in     ocfs2_duplicate_clusters_by_page. (bnc#899843)

  - powerpc: Add smp_mb() to arch_spin_is_locked()     (bsc#893758).

  - powerpc: Add smp_mb()s to arch_spin_unlock_wait()     (bsc#893758).

  - powerpc: Add support for the optimised lockref     implementation (bsc#893758).

  - powerpc: Implement arch_spin_is_locked() using     arch_spin_value_unlocked() (bsc#893758).

  - refresh patches.xen/xen-blkback-multi-page-ring     (bnc#897708)).

  - remove filesize checks for sync I/O journal commit.
    (bnc#800255)

  - resource: add __adjust_resource() for internal use.
    (bnc#891790)

  - resource: add release_mem_region_adjustable().
    (bnc#891790)

  - revert PM / Hibernate: Iterate over set bits instead of     PFNs in swsusp_free(). (bnc#860441)

  - rpm/mkspec: Generate specfiles according to Factory     requirements.

  - rpm/mkspec: Generate a per-architecture per-package
    _constraints file

  - sched: Fix unreleased llc_shared_mask bit during CPU     hotplug. (bnc#891368)

  - scsi_dh_alua: disable ALUA handling for non-disk     devices. (bnc#876633)

  - usb: Do not re-read descriptors for wired devices in     usb_authorize_device(). (bnc#904358)

  - usbback: Do not access request fields in shared ring     more than once.

  - usbhid: add another mouse that needs QUIRK_ALWAYS_POLL.
    (bnc#888607)

  - vfs,proc: guarantee unique inodes in /proc. (bnc#868049)

  - x86, cpu hotplug: Fix stack frame warning     incheck_irq_vectors_for_cpu_disable(). (bnc#887418)

  - x86, ioremap: Speed up check for RAM pages (Boot time     optimisations (bnc#895387)).

  - x86: Add check for number of available vectors before     CPU down. (bnc#887418)

  - x86: optimize resource lookups for ioremap (Boot time     optimisations (bnc#895387)).

  - x86: use optimized ioresource lookup in ioremap function     (Boot time optimisations (bnc#895387)).

  - xfs: Do not free EFIs before the EFDs are committed     (bsc#755743).

  - xfs: Do not reference the EFI after it is freed     (bsc#755743).

  - xfs: fix cil push sequence after log recovery     (bsc#755743).

  - zcrypt: support for extended number of ap domains     (bnc#894058, LTC#117041).

  - zcrypt: toleration of new crypto adapter hardware     (bnc#894058, LTC#117041).

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service :

  - CVE-2014-3610     Lars Bull of Google and Nadav Amit reported a flaw in     how KVM handles noncanonical writes to certain MSR     registers. A privileged guest user can exploit this flaw     to cause a denial of service (kernel panic) on the host.

  - CVE-2014-3611     Lars Bull of Google reported a race condition in the PIT     emulation code in KVM. A local guest user with access to     PIT i/o ports could exploit this flaw to cause a denial     of service (crash) on the host.

  - CVE-2014-3645/ CVE-2014-3646     The Advanced Threat Research team at Intel Security     discovered that the KVM subsystem did not handle the VM     exits gracefully for the invept (Invalidate Translations     Derived from EPT) and invvpid (Invalidate Translations     Based on VPID) instructions. On hosts with an Intel     processor and invept/invppid VM exit support, an     unprivileged guest user could use these instructions to     crash the guest.

  - CVE-2014-3647     Nadav Amit reported that KVM mishandles noncanonical     addresses when emulating instructions that change rip,     potentially causing a failed VM-entry. A guest user with     access to I/O or the MMIO can use this flaw to cause a     denial of service (system crash) of the guest.

  - CVE-2014-3673     Liu Wei of Red Hat discovered a flaw in     net/core/skbuff.c leading to a kernel panic when     receiving malformed ASCONF chunks. A remote attacker     could use this flaw to crash the system.

  - CVE-2014-3687     A flaw in the sctp stack was discovered leading to a     kernel panic when receiving duplicate ASCONF chunks. A     remote attacker could use this flaw to crash the system.

  - CVE-2014-3688     It was found that the sctp stack is prone to a remotely     triggerable memory pressure issue caused by excessive     queueing. A remote attacker could use this flaw to cause     denial-of-service conditions on the system.

  - CVE-2014-3690     Andy Lutomirski discovered that incorrect register     handling in KVM may lead to denial of service.

  - CVE-2014-7207     Several Debian developers reported an issue in the IPv6     networking subsystem. A local user with access to tun or     macvtap devices, or a virtual machine connected to such     a device, can cause a denial of service (system crash).

This update includes a bug fix related to CVE-2014-7207 that disables UFO (UDP Fragmentation Offload) in the macvtap, tun, and virtio_net drivers. This will cause migration of a running VM from a host running an earlier kernel version to a host running this kernel version to fail, if the VM has been assigned a virtio network device. In order to migrate such a VM, it must be shut down first.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-3088 advisory.

    - net: sctp: fix panic on duplicate ASCONF chunks (Daniel Borkmann)  [Orabug: 20010591]  {CVE-2014-3687}

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.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security 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.

* A flaw was found in the way the Linux kernel's SCTP implementation handled malformed or duplicate Address Configuration Change Chunks (ASCONF). A remote attacker could use either of these flaws to crash the system. (CVE-2014-3673, CVE-2014-3687, Important)

* A flaw was found in the way the Linux kernel's SCTP implementation handled the association's output queue. A remote attacker could send specially crafted packets that would cause the system to use an excessive amount of memory, leading to a denial of service.
(CVE-2014-3688, Important)

* Two flaws were found in the way the Apple Magic Mouse/Trackpad multi-touch driver and the Minibox PicoLCD driver handled invalid HID reports. An attacker with physical access to the system could use these flaws to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-3181, CVE-2014-3186, Moderate)

* A memory corruption flaw was found in the way the USB ConnectTech WhiteHEAT serial driver processed completion commands sent via USB Request Blocks buffers. An attacker with physical access to the system could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-3185, Moderate)

* A flaw was found in the way the Linux kernel's keys subsystem handled the termination condition in the associative array garbage collection functionality. A local, unprivileged user could use this flaw to crash the system. (CVE-2014-3631, Moderate)

* Multiple flaws were found in the way the Linux kernel's ALSA implementation handled user controls. A local, privileged user could use either of these flaws to crash the system. (CVE-2014-4654, CVE-2014-4655, CVE-2014-4656, Moderate)

* A flaw was found in the way the Linux kernel's VFS subsystem handled reference counting when performing unmount operations on symbolic links. A local, unprivileged user could use this flaw to exhaust all available memory on the system or, potentially, trigger a use-after-free error, resulting in a system crash or privilege escalation. (CVE-2014-5045, Moderate)

* A flaw was found in the way the get_dumpable() function return value was interpreted in the ptrace subsystem of the Linux kernel. When 'fs.suid_dumpable' was set to 2, a local, unprivileged local user could use this flaw to bypass intended ptrace restrictions and obtain potentially sensitive information. (CVE-2013-2929, Low)

* A stack overflow flaw caused by infinite recursion was found in the way the Linux kernel's UDF file system implementation processed indirect ICBs. An attacker with physical access to the system could use a specially crafted UDF image to crash the system. (CVE-2014-6410, Low)

* An information leak flaw in the way the Linux kernel handled media device enumerate entities IOCTL requests could allow a local user able to access the /dev/media0 device file to leak kernel memory bytes.
(CVE-2014-1739, Low)

* An out-of-bounds read flaw in the Logitech Unifying receiver driver could allow an attacker with physical access to the system to crash the system or, potentially, escalate their privileges on the system.
(CVE-2014-3182, Low)

* Multiple out-of-bounds write flaws were found in the way the Cherry Cymotion keyboard driver, KYE/Genius device drivers, Logitech device drivers, Monterey Genius KB29E keyboard driver, Petalynx Maxter remote control driver, and Sunplus wireless desktop driver handled invalid HID reports. An attacker with physical access to the system could use either of these flaws to write data past an allocated memory buffer.
(CVE-2014-3184, Low)

* An information leak flaw was found in the RAM Disks Memory Copy (rd_mcp) back end driver of the iSCSI Target subsystem could allow a privileged user to leak the contents of kernel memory to an iSCSI initiator remote client. (CVE-2014-4027, Low)

* An information leak flaw in the Linux kernel's ALSA implementation could allow a local, privileged user to leak kernel memory to user space. (CVE-2014-4652, Low)

The SUSE Linux Enterprise 12 kernel was updated to 3.12.31 to receive various security and bugfixes.

Security issues fixed: CVE-2014-9322: A local privilege escalation in the x86_64 32bit compatibility signal handling was fixed, which could be used by local attackers to crash the machine or execute code.

  - CVE-2014-9090: Various issues in LDT handling in 32bit     compatibility mode on the x86_64 platform were fixed,     where local attackers could crash the machine.

  - CVE-2014-8133: Insufficient validation of TLS register     usage could leak information from the kernel stack to     userspace.

  - CVE-2014-7826: kernel/trace/trace_syscalls.c in the     Linux kernel did not properly handle private syscall     numbers during use of the ftrace subsystem, which     allowed local users to gain privileges or cause a denial     of service (invalid pointer dereference) via a crafted     application.

  - CVE-2014-3647: Nadav Amit reported that the KVM (Kernel     Virtual Machine) mishandled noncanonical addresses when     emulating instructions that change the rip (Instruction     Pointer). A guest user with access to I/O or the MMIO     could use this flaw to cause a denial of service (system     crash) of the guest.

  - CVE-2014-3611: A race condition flaw was found in the     way the Linux kernel's KVM subsystem handled PIT     (Programmable Interval Timer) emulation. A guest user     who has access to the PIT I/O ports could use this flaw     to crash the host.

  - CVE-2014-3610: If the guest writes a noncanonical value     to certain MSR registers, KVM will write that value to     the MSR in the host context and a #GP will be raised     leading to kernel panic. A privileged guest user could     have used this flaw to crash the host.

  - CVE-2014-7841: A remote attacker could have used a flaw     in SCTP to crash the system by sending a maliciously     prepared SCTP packet in order to trigger a NULL pointer     dereference on the server.

  - CVE-2014-3673: The SCTP implementation in the Linux     kernel allowed remote attackers to cause a denial of     service (system crash) via a malformed ASCONF chunk,     related to net/sctp/sm_make_chunk.c and     net/sctp/sm_statefuns.c.

  - CVE-2014-3185: Multiple buffer overflows in the     command_port_read_callback function in     drivers/usb/serial/whiteheat.c in the Whiteheat USB     Serial Driver in the Linux kernel allowed physically     proximate attackers to execute arbitrary code or cause a     denial of service (memory corruption and system crash)     via a crafted device that provides a large amount of (1)     EHCI or (2) XHCI data associated with a bulk response.

Bugs fixed: BTRFS :

  - btrfs: fix race that makes btrfs_lookup_extent_info miss     skinny extent items (bnc#904077).

  - btrfs: fix invalid leaf slot access in     btrfs_lookup_extent() (bnc#904077).

  - btrfs: avoid returning -ENOMEM in convert_extent_bit()     too early (bnc#902016).

  - btrfs: make find_first_extent_bit be able to cache any     state (bnc#902016).

  - btrfs: deal with convert_extent_bit errors to avoid fs     corruption (bnc#902016).

  - btrfs: be aware of btree inode write errors to avoid fs     corruption (bnc#899551).

  - btrfs: add missing end_page_writeback on     submit_extent_page failure (bnc#899551).

  - btrfs: fix crash of btrfs_release_extent_buffer_page     (bnc#899551).

  - btrfs: ensure readers see new data after a clone     operation (bnc#898234).

  - btrfs: avoid visiting all extent items when cloning a     range (bnc#898234).

  - btrfs: fix clone to deal with holes when NO_HOLES     feature is enabled (bnc#898234).

  - btrfs: make fsync work after cloning into a file     (bnc#898234).

  - btrfs: fix use-after-free when cloning a trailing file     hole (bnc#898234).

  - btrfs: clone, don't create invalid hole extent map     (bnc#898234).

  - btrfs: limit the path size in send to PATH_MAX     (bnc#897770).

  - btrfs: send, fix more issues related to directory     renames (bnc#897770).

  - btrfs: send, remove dead code from
    __get_cur_name_and_parent (bnc#897770).

  - btrfs: send, account for orphan directories when     building path strings (bnc#897770).

  - btrfs: send, avoid unnecessary inode item lookup in the     btree (bnc#897770).

  - btrfs: send, fix incorrect ref access when using extrefs     (bnc#897770).

  - btrfs: send, build path string only once in send_hole     (bnc#897770).

  - btrfs: part 2, fix incremental send's decision to delay     a dir move/rename (bnc#897770).

  - btrfs: fix incremental send's decision to delay a dir     move/rename (bnc#897770).

  - btrfs: remove unnecessary inode generation lookup in     send (bnc#897770).

  - btrfs: avoid unnecessary utimes update in incremental     send (bnc#897770).

  - btrfs: fix send issuing outdated paths for utimes, chown     and chmod (bnc#897770).

  - btrfs: fix send attempting to rmdir non-empty     directories (bnc#897770).

  - btrfs: send, don't send rmdir for same target multiple     times (bnc#897770).

  - btrfs: incremental send, fix invalid path after dir     rename (bnc#897770).

  - btrfs: fix assert screwup for the pending move stuff     (bnc#897770).

  - btrfs: make some tree searches in send.c more efficient     (bnc#897770).

  - btrfs: use right extent item position in send when     finding extent clones (bnc#897770).

  - btrfs: more send support for parent/child dir     relationship inversion (bnc#897770).

  - btrfs: fix send dealing with file renames and directory     moves (bnc#897770).

  - btrfs: add missing error check in incremental send     (bnc#897770).

  - btrfs: make send's file extent item search more     efficient (bnc#897770).

  - btrfs: fix infinite path build loops in incremental send     (bnc#897770).

  - btrfs: send, don't delay dir move if there's a new     parent inode (bnc#897770).

  - btrfs: add helper btrfs_fdatawrite_range (bnc#902010).

  - btrfs: correctly flush compressed data before/after     direct IO (bnc#902010).

  - btrfs: make inode.c:compress_file_range() return void     (bnc#902010).

  - btrfs: report error after failure inlining extent in     compressed write path (bnc#902010).

  - btrfs: don't ignore compressed bio write errors     (bnc#902010).

  - btrfs: make inode.c:submit_compressed_extents() return     void (bnc#902010).

  - btrfs: process all async extents on compressed write     failure (bnc#902010).

  - btrfs: don't leak pages and memory on compressed write     error (bnc#902010).

  - btrfs: fix hang on compressed write error (bnc#902010).

  - btrfs: set page and mapping error on compressed write     failure (bnc#902010).

  - btrfs: fix kfree on list_head in     btrfs_lookup_csums_range error cleanup (bnc#904115).

Hyper-V :

  - hyperv: Fix a bug in netvsc_send().

  - hyperv: Fix a bug in netvsc_start_xmit().

  - drivers: hv: vmbus: Enable interrupt driven flow     control.

  - drivers: hv: vmbus: Properly protect calls to     smp_processor_id().

  - drivers: hv: vmbus: Cleanup hv_post_message().

  - drivers: hv: vmbus: Cleanup vmbus_close_internal().

  - drivers: hv: vmbus: Fix a bug in vmbus_open().

  - drivers: hv: vmbus: Cleanup vmbus_establish_gpadl().

  - drivers: hv: vmbus: Cleanup vmbus_teardown_gpadl().

  - drivers: hv: vmbus: Cleanup vmbus_post_msg().

  - storvsc: get rid of overly verbose warning messages.

  - hyperv: NULL dereference on error.

  - hyperv: Increase the buffer length for     netvsc_channel_cb().

zSeries / S390 :

  - s390: pass march flag to assembly files as well     (bnc#903279, LTC#118177).

  - kernel: reduce function tracer overhead (bnc#903279,     LTC#118177).

  - SUNRPC: Handle EPIPE in xprt_connect_status     (bnc#901090).

  - SUNRPC: Ensure that we handle ENOBUFS errors correctly     (bnc#901090).

  - SUNRPC: Ensure call_connect_status() deals correctly     with SOFTCONN tasks (bnc#901090).

  - SUNRPC: Ensure that call_connect times out correctly     (bnc#901090).

  - SUNRPC: Handle connect errors ECONNABORTED and     EHOSTUNREACH (bnc#901090).

  - SUNRPC: Ensure xprt_connect_status handles all potential     connection errors (bnc#901090).

  - SUNRPC: call_connect_status should recheck bind and     connect status on error (bnc#901090).

kGraft :

  - kgr: force patching process to succeed (fate#313296).

  - kgr: usb-storage, mark kthread safe (fate#313296     bnc#899908).

  - Refresh patches.suse/kgr-0039-kgr-fix-ugly-race.patch.
    Fix few bugs, and also races (immutable vs     mark_processes vs other threads).

  - kgr: always use locked bit ops for thread_info->flags     (fate#313296).

  - kgr: lower the workqueue scheduling timeout (fate#313296     bnc#905087).

  - kgr: mark even more kthreads (fate#313296 bnc#904871).

  - rpm/kernel-binary.spec.in: Provide name-version-release     for kgraft packages (bnc#901925)

Other :

  - NFSv4: test SECINFO RPC_AUTH_GSS pseudoflavors for     support (bnc#905758).

  - Enable cmac(aes) and cmac(3des_ede) for FIPS mode     (bnc#905296 bnc#905772).

  - scsi_dh_alua: disable ALUA handling for non-disk devices     (bnc#876633).

  - powerpc/vphn: NUMA node code expects big-endian     (bsc#900126).

  - net: fix checksum features handling in     netif_skb_features() (bnc#891259).

  - be2net: Fix invocation of be_close() after be_clear()     (bnc#895468).

  - PCI: pciehp: Clear Data Link Layer State Changed during     init (bnc#898297).

  - PCI: pciehp: Use symbolic constants, not hard-coded     bitmask (bnc#898297).

  - PCI: pciehp: Use link change notifications for hot-plug     and removal (bnc#898297).

  - PCI: pciehp: Make check_link_active() non-static     (bnc#898297).

  - PCI: pciehp: Enable link state change notifications     (bnc#898297).

  - ALSA: hda - Treat zero connection as non-error     (bnc#902898).

  - bcache: add mutex lock for bch_is_open (bnc#902893).

  - futex: Fix a race condition between REQUEUE_PI and task     death (bcn #851603 (futex scalability series)).

  - Linux 3.12.31 (bnc#895983 bnc#897912).

  - futex: Ensure get_futex_key_refs() always implies a     barrier (bcn #851603 (futex scalability series)).

  - usbback: don't access request fields in shared ring more     than once.

  - Update Xen patches to 3.12.30.

  - locking/rwsem: Avoid double checking before try     acquiring write lock (Locking scalability.).

  - zcrypt: toleration of new crypto adapter hardware     (bnc#894057, LTC#117041).

  - zcrypt: support for extended number of ap domains     (bnc#894057, LTC#117041).

  - kABI: protect linux/fs.h include in mm/internal.h.

  - Linux 3.12.30 (FATE#315482 bnc#862957 bnc#863526     bnc#870498).

  - Update     patches.fixes/xfs-mark-all-internal-workqueues-as-freeza     ble.patch (bnc#899785).

  - xfs: mark all internal workqueues as freezable.

  - drm/i915: Move DP port disable to post_disable for pch     platforms (bnc#899787).

  - pagecachelimit: reduce lru_lock congestion for heavy     parallel reclaim fix (bnc#895680).

  - Linux 3.12.29 (bnc#879255 bnc#880892 bnc#887046     bnc#887418 bnc#891619 bnc#892612 bnc#892650 bnc#897101).

  - iommu/vt-d: Work around broken RMRR firmware entries     (bnc#892860).

  - iommu/vt-d: Store bus information in RMRR PCI device     path (bnc#892860).

  - iommu/vt-d: Only remove domain when device is removed     (bnc#883139).

  - driver core: Add BUS_NOTIFY_REMOVED_DEVICE event     (bnc#883139).

  - Update config files: Re-enable CONFIG_FUNCTION_PROFILER     (bnc#899489) Option FUNCTION_PROFILER was enabled in     debug and trace kernels so far, but it was accidentally     disabled before tracing features were merged into the     default kernel and the trace flavor was discarded. So     all kernels are missing the feature now. Re-enable it.

  - xfs: xlog_cil_force_lsn doesn't always wait correctly.

  - scsi: clear 'host_scribble' upon successful abort     (bnc#894863).

  - module: warn if module init + probe takes long     (bnc#889297 bnc#877622 bnc#889295 bnc#893454).

  - mm, THP: don't hold mmap_sem in khugepaged when     allocating THP (bnc#880767, VM Performance).

  - pagecache_limit: batch large nr_to_scan targets     (bnc#895221).

  - iommu/vt-d: Check return value of acpi_bus_get_device()     (bnc#903307).

  - rpm/kernel-binary.spec.in: Fix including the secure boot     cert in /etc/uefi/certs

  - sched: Reduce contention in update_cfs_rq_blocked_load()     (Scheduler/core performance).

  - x86: use optimized ioresource lookup in ioremap function     (Boot time optimisations (bnc#895387)).

  - x86: optimize resource lookups for ioremap (Boot time     optimisations (bnc#895387)).

  - usb: Do not re-read descriptors for wired devices in     usb_authorize_device() (bnc#904354).

  - netxen: Fix link event handling (bnc#873228).

  - x86, cpu: Detect more TLB configuration -xen (TLB     Performance).

  - x86/mm: Fix RCU splat from new TLB tracepoints (TLB     Performance).

  - x86/mm: Set TLB flush tunable to sane value (33) (TLB     Performance).

  - x86/mm: New tunable for single vs full TLB flush (TLB     Performance).

  - x86/mm: Add tracepoints for TLB flushes (TLB     Performance).

  - x86/mm: Unify remote INVLPG code (TLB Performance).

  - x86/mm: Fix missed global TLB flush stat (TLB     Performance).

  - x86/mm: Rip out complicated, out-of-date, buggy TLB     flushing (TLB Performance).

  - x86, cpu: Detect more TLB configuration (TLB     Performance).

  - mm, x86: Revisit tlb_flushall_shift tuning for page     flushes except on IvyBridge (TLB Performance).

  - x86/mm: Clean up the TLB flushing code (TLB     Performance).

  - mm: free compound page with correct order (VM     Functionality).

  - bnx2x: Utilize FW 7.10.51 (bnc#887382).

  - bnx2x: Remove unnecessary internal mem config     (bnc#887382).

  - rtnetlink: fix oops in     rtnl_link_get_slave_info_data_size (bnc#901774).

  - dm: do not call dm_sync_table() when creating new     devices (bnc#901809).

  - [media] uvc: Fix destruction order in uvc_delete()     (bnc#897736).

  - uas: replace WARN_ON_ONCE() with lockdep_assert_held()     (FATE#315595).

  - cxgb4/cxgb4vf: Add Devicde ID for two more adapter     (bsc#903999).

  - cxgb4/cxgb4vf: Add device ID for new adapter and remove     for dbg adapter (bsc#903999).

  - cxgb4: Adds device ID for few more Chelsio T4 Adapters     (bsc#903999).

  - cxgb4: Check if rx checksum offload is enabled, while     reading hardware calculated checksum (bsc#903999).

  - xen-pciback: drop SR-IOV VFs when PF driver unloads     (bsc#901839).

This update also includes fixes contained in the Linux 3.12.stable release series, not separately listed here.

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

The openSUSE 13.1 kernel was updated to fix security issues and bugs :

Security issues fixed: CVE-2014-9322: A local privilege escalation in the x86_64 32bit compatibility signal handling was fixed, which could be used by local attackers to crash the machine or execute code.

CVE-2014-9090: The do_double_fault function in arch/x86/kernel/traps.c in the Linux kernel did not properly handle faults associated with the Stack Segment (SS) segment register, which allowed local users to cause a denial of service (panic) via a modify_ldt system call, as demonstrated by sigreturn_32 in the linux-clock-tests test suite.

CVE-2014-8133: Insufficient validation of TLS register usage could leak information from the kernel stack to userspace.

CVE-2014-0181: The Netlink implementation in the Linux kernel through 3.14.1 did not provide a mechanism for authorizing socket operations based on the opener of a socket, which allowed local users to bypass intended access restrictions and modify network configurations by using a Netlink socket for the (1) stdout or (2) stderr of a setuid program. (bsc#875051)

CVE-2014-4508: arch/x86/kernel/entry_32.S in the Linux kernel on 32-bit x86 platforms, when syscall auditing is enabled and the sep CPU feature flag is set, allowed local users to cause a denial of service (OOPS and system crash) via an invalid syscall number, as demonstrated by number 1000.

CVE-2014-3688: The SCTP implementation in the Linux kernel allowed remote attackers to cause a denial of service (memory consumption) by triggering a large number of chunks in an association's output queue, as demonstrated by ASCONF probes, related to net/sctp/inqueue.c and net/sctp/sm_statefuns.c.

CVE-2014-3687: The sctp_assoc_lookup_asconf_ack function in net/sctp/associola.c in the SCTP implementation in the Linux kernel allowed remote attackers to cause a denial of service (panic) via duplicate ASCONF chunks that trigger an incorrect uncork within the side-effect interpreter.

CVE-2014-7975: The do_umount function in fs/namespace.c in the Linux kernel did not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allowed local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.

CVE-2014-8884: Stack-based buffer overflow in the ttusbdecfe_dvbs_diseqc_send_master_cmd function in drivers/media/usb/ttusb-dec/ttusbdecfe.c in the Linux kernel allowed local users to cause a denial of service (system crash) or possibly gain privileges via a large message length in an ioctl call.

CVE-2014-3673: The SCTP implementation in the Linux kernel allowed remote attackers to cause a denial of service (system crash) via a malformed ASCONF chunk, related to net/sctp/sm_make_chunk.c and net/sctp/sm_statefuns.c.

CVE-2014-3186: Buffer overflow in the picolcd_raw_event function in devices/hid/hid-picolcd_core.c in the PicoLCD HID device driver in the Linux kernel, as used in Android on Nexus 7 devices, allowed physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a crafted device that sends a large report.

CVE-2014-7841: The sctp_process_param function in net/sctp/sm_make_chunk.c in the SCTP implementation in the Linux kernel, when ASCONF is used, allowed remote attackers to cause a denial of service (NULL pointer dereference and system crash) via a malformed INIT chunk.

CVE-2014-4611: Integer overflow in the LZ4 algorithm implementation, as used in Yann Collet LZ4 before r118 and in the lz4_uncompress function in lib/lz4/lz4_decompress.c in the Linux kernel before 3.15.2, on 32-bit platforms might allow context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted Literal Run that would be improperly handled by programs not complying with an API limitation, a different vulnerability than CVE-2014-4715.

CVE-2014-4608: Multiple integer overflows in the lzo1x_decompress_safe function in lib/lzo/lzo1x_decompress_safe.c in the LZO decompressor in the Linux kernel allowed context-dependent attackers to cause a denial of service (memory corruption) via a crafted Literal Run.

CVE-2014-8709: The ieee80211_fragment function in net/mac80211/tx.c in the Linux kernel did not properly maintain a certain tail pointer, which allowed remote attackers to obtain sensitive cleartext information by reading packets.

CVE-2014-3185: Multiple buffer overflows in the command_port_read_callback function in drivers/usb/serial/whiteheat.c in the Whiteheat USB Serial Driver in the Linux kernel allowed physically proximate attackers to execute arbitrary code or cause a denial of service (memory corruption and system crash) via a crafted device that provides a large amount of (1) EHCI or (2) XHCI data associated with a bulk response.

CVE-2014-3184: The report_fixup functions in the HID subsystem in the Linux kernel might have allowed physically proximate attackers to cause a denial of service (out-of-bounds write) via a crafted device that provides a small report descriptor, related to (1) drivers/hid/hid-cherry.c, (2) drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4) drivers/hid/hid-monterey.c, (5) drivers/hid/hid-petalynx.c, and (6) drivers/hid/hid-sunplus.c.

CVE-2014-3182: Array index error in the logi_dj_raw_event function in drivers/hid/hid-logitech-dj.c in the Linux kernel allowed physically proximate attackers to execute arbitrary code or cause a denial of service (invalid kfree) via a crafted device that provides a malformed REPORT_TYPE_NOTIF_DEVICE_UNPAIRED value.

CVE-2014-3181: Multiple stack-based buffer overflows in the magicmouse_raw_event function in drivers/hid/hid-magicmouse.c in the Magic Mouse HID driver in the Linux kernel allowed physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a crafted device that provides a large amount of (1) EHCI or (2) XHCI data associated with an event.

CVE-2014-7826: kernel/trace/trace_syscalls.c in the Linux kernel did not properly handle private syscall numbers during use of the ftrace subsystem, which allowed local users to gain privileges or cause a denial of service (invalid pointer dereference) via a crafted application.

CVE-2013-7263: The Linux kernel updated certain length values before ensuring that associated data structures have been initialized, which allowed local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call, related to net/ipv4/ping.c, net/ipv4/raw.c, net/ipv4/udp.c, net/ipv6/raw.c, and net/ipv6/udp.c. This update fixes the leak of the port number when using ipv6 sockets. (bsc#853040).

CVE-2013-2898: Fixed potential kernel caller confusion via past-end-of-heap-allocation read in sensor-hub HID driver.

CVE-2013-2891: Fixed 16 byte past-end-of-heap-alloc zeroing in steelseries HID driver.

VE-2014-6410: The __udf_read_inode function in fs/udf/inode.c in the Linux kernel did not restrict the amount of ICB indirection, which allowed physically proximate attackers to cause a denial of service (infinite loop or stack consumption) via a UDF filesystem with a crafted inode.

CVE-2014-5471: Stack consumption vulnerability in the parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel allowed local users to cause a denial of service (uncontrolled recursion, and system crash or reboot) via a crafted iso9660 image with a CL entry referring to a directory entry that has a CL entry.

CVE-2014-5472: The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel allowed local users to cause a denial of service (unkillable mount process) via a crafted iso9660 image with a self-referential CL entry.

CVE-2014-0206: Array index error in the aio_read_events_ring function in fs/aio.c in the Linux kernel allowed local users to obtain sensitive information from kernel memory via a large head value.

CVE-2014-4508: arch/x86/kernel/entry_32.S in the Linux kernel on 32-bit x86 platforms, when syscall auditing is enabled and the sep CPU feature flag is set, allowed local users to cause a denial of service (OOPS and system crash) via an invalid syscall number, as demonstrated by number 1000.

CVE-2014-5206: The do_remount function in fs/namespace.c in the Linux kernel did not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allowed local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a 'mount -o remount' command within a user namespace.

CVE-2014-5207: fs/namespace.c in the Linux kernel did not properly restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing MNT_ATIME_MASK during a remount of a bind mount, which allowed local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, or cause a denial of service (excessive filesystem updating) on systems that had atime disabled via a 'mount -o remount' command within a user namespace.

CVE-2014-1739: The media_device_enum_entities function in drivers/media/media-device.c in the Linux kernel did not initialize a certain data structure, which allowed local users to obtain sensitive information from kernel memory by leveraging /dev/media0 read access for a MEDIA_IOC_ENUM_ENTITIES ioctl call.

CVE-2014-4943: The PPPoL2TP feature in net/l2tp/l2tp_ppp.c in the Linux kernel allowed local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket.

CVE-2014-4508: arch/x86/kernel/entry_32.S in the Linux kernel on 32-bit x86 platforms, when syscall auditing is enabled and the sep CPU feature flag is set, allowed local users to cause a denial of service (OOPS and system crash) via an invalid syscall number, as demonstrated by number 1000.

CVE-2014-5077: The sctp_assoc_update function in net/sctp/associola.c in the Linux kernel, when SCTP authentication is enabled, allowed remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by starting to establish an association between two endpoints immediately after an exchange of INIT and INIT ACK chunks to establish an earlier association between these endpoints in the opposite direction.

CVE-2014-4171: mm/shmem.c in the Linux kernel did not properly implement the interaction between range notification and hole punching, which allowed local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.

Also the following bugs were fixed :

  - KEYS: Fix stale key registration at error path     (bnc#908163).

  - parport: parport_pc, do not remove parent devices early     (bnc#856659).

  - xfs: fix directory hash ordering bug.

  - xfs: mark all internal workqueues as freezable     (bnc#899785).

  - [media] uvc: Fix destruction order in uvc_delete()     (bnc#897736).

  - cfq-iosched: Fix wrong children_weight calculation     (bnc#893429).

  - target/rd: Refactor rd_build_device_space +     rd_release_device_space (bnc#882639).

  - Btrfs: Fix memory corruption by ulist_add_merge() on     32bit arch (bnc#887046).

  - usb: pci-quirks: Prevent Sony VAIO t-series from     switching usb ports (bnc#864375).

  - xhci: Switch only Intel Lynx Point-LP ports to EHCI on     shutdown (bnc#864375).

  - xhci: Switch Intel Lynx Point ports to EHCI on shutdown     (bnc#864375).

  - ALSA: hda - Fix broken PM due to incomplete i915     initialization (bnc#890114).

  - netbk: Don't destroy the netdev until the vif is shut     down (bnc#881008).

  - swiotlb: don't assume PA 0 is invalid (bnc#865882).

  - PM / sleep: Fix request_firmware() error at resume     (bnc#873790).

  - usbcore: don't log on consecutive debounce failures of     the same port (bnc#818966).

ID	Name	Product	Family	Published	Updated	Severity
79258	Fedora 19 : kernel-3.14.23-100.fc19 (2014-14068)	Nessus	Fedora Local Security Checks	11/17/2014	1/11/2021	high
80034	Ubuntu 14.10 : linux vulnerabilities (USN-2448-1)	Nessus	Ubuntu Local Security Checks	12/15/2014	1/19/2021	high
80088	CentOS 6 : kernel (CESA-2014:1997)	Nessus	CentOS Local Security Checks	12/18/2014	1/4/2021	high
80099	Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20141216)	Nessus	Scientific Linux Local Security Checks	12/18/2014	1/14/2021	high
80249	SuSE 11.3 Security Update : Linux kernel (SAT Patch Numbers 10037 / 10040)	Nessus	SuSE Local Security Checks	12/26/2014	1/19/2021	high
78784	Debian DSA-3060-1 : linux - security update	Nessus	Debian Local Security Checks	11/3/2014	1/11/2021	high
79243	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2014-3088)	Nessus	Oracle Linux Local Security Checks	11/14/2014	2/9/2026	high
79876	CentOS 7 : kernel (CESA-2014:1971)	Nessus	CentOS Local Security Checks	12/15/2014	1/4/2021	high
80250	SuSE 11.3 Security Update : Linux kernel (SAT Patch Number 10103)	Nessus	SuSE Local Security Checks	12/26/2014	1/19/2021	high
83665	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2015:0068-1)	Nessus	SuSE Local Security Checks	5/20/2015	1/6/2021	high
80152	openSUSE Security Update : the Linux Kernel (openSUSE-SU-2014:1677-1)	Nessus	SuSE Local Security Checks	12/22/2014	1/19/2021	high

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