The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:1272 advisory.

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

    * A flaw was found in the way Linux kernel's Transparent Huge Pages (THP)     implementation handled non-huge page migration. A local, unprivileged user     could use this flaw to crash the kernel by migrating transparent hugepages.
    (CVE-2014-3940, Moderate)

    * A buffer overflow flaw was found in the way the Linux kernel's eCryptfs     implementation decoded encrypted file names. A local, unprivileged user     could use this flaw to crash the system or, potentially, escalate their     privileges on the system. (CVE-2014-9683, Moderate)

    * A race condition flaw was found between the chown and execve system     calls. When changing the owner of a setuid user binary to root, the race     condition could momentarily make the binary setuid root. A local,     unprivileged user could potentially use this flaw to escalate their     privileges on the system. (CVE-2015-3339, Moderate)

    * 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 HID reports     with an invalid report descriptor size. 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 way the Linux kernel's Advanced     Linux Sound Architecture (ALSA) implementation handled access of the user     control's state. A local, privileged user could use this flaw to leak     kernel memory to user space. (CVE-2014-4652, Low)

    * It was found that the espfix functionality could be bypassed by     installing a 16-bit RW data segment into GDT instead of LDT (which espfix     checks), and using that segment on the stack. A local, unprivileged user     could potentially use this flaw to leak kernel stack addresses.
    (CVE-2014-8133, Low)

    * An information leak flaw was found in the Linux kernel's IEEE 802.11     wireless networking implementation. When software encryption was used, a     remote attacker could use this flaw to leak up to 8 bytes of plaintext.
    (CVE-2014-8709, Low)

    * It was found that the Linux kernel KVM subsystem's sysenter instruction     emulation was not sufficient. An unprivileged guest user could use this     flaw to escalate their privileges by tricking the hypervisor to emulate a     SYSENTER instruction in 16-bit mode, if the guest OS did not initialize the     SYSENTER model-specific registers (MSRs). Note: Certified guest operating     systems for Red Hat Enterprise Linux with KVM do initialize the SYSENTER     MSRs and are thus not vulnerable to this issue when running on a KVM     hypervisor. (CVE-2015-0239, Low)

    Red Hat would like to thank Andy Lutomirski for reporting the CVE-2014-8133     issue, and Nadav Amit for reporting the CVE-2015-0239 issue.

    This update fixes several hundred bugs and adds numerous enhancements.
    Refer to the Red Hat Enterprise Linux 6.7 Release Notes for information on     the most significant of these changes, and the following Knowledgebase     article for further information:

    https://access.redhat.com/articles/1466073

    All kernel users are advised to upgrade to these updated packages, which     contain backported patches to correct these issues and add these     enhancements. The system must be rebooted for this update to take effect.

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

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

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A race condition flaw was found in the way the Linux     kernel's mmap(2), madvise(2), and fallocate(2) system     calls interacted with each other while operating on     virtual memory file system files. A local user could     use this flaw to cause a denial of     service.(CVE-2014-4171)

  - An information leak flaw was found in the way the Linux     kernel's Advanced Linux Sound Architecture (ALSA)     implementation handled access of the user control's     state. A local, privileged user could use this flaw to     leak kernel memory to user space.(CVE-2014-4652)

  - A use-after-free flaw was found in the way the Linux     kernel's Advanced Linux Sound Architecture (ALSA)     implementation handled user controls. A local,     privileged user could use this flaw to crash the     system.(CVE-2014-4653)

  - A use-after-free flaw was found in the way the Linux     kernel's Advanced Linux Sound Architecture (ALSA)     implementation handled user controls. A local,     privileged user could use this flaw to crash the     system.(CVE-2014-4654)

  - A use-after-free flaw was found in the way the Linux     kernel's Advanced Linux Sound Architecture (ALSA)     implementation handled user controls. A local,     privileged user could use this flaw to crash the     system.(CVE-2014-4655)

  - An integer overflow flaw was found in the way the Linux     kernel's Advanced Linux Sound Architecture (ALSA)     implementation handled user controls. A local,     privileged user could use this flaw to crash the     system.(CVE-2014-4656)

  - An integer underflow flaw was found in the way the     Linux kernel's Stream Control Transmission Protocol     (SCTP) implementation processed certain COOKIE_ECHO     packets. By sending a specially crafted SCTP packet, a     remote attacker could use this flaw to prevent     legitimate connections to a particular SCTP server     socket to be made.(CVE-2014-4667)

  - 'It was found that the Linux kernel's ptrace subsystem     allowed a traced process' instruction pointer to be set     to a non-canonical memory address without forcing the     non-sysret code path when returning to user space. A     local, unprivileged user could use this flaw to crash     the system or, potentially, escalate their privileges     on the system.

  - Note: The CVE-2014-4699 issue only affected systems     using an Intel CPU.(CVE-2014-4699)'

  - A flaw was found in the way the pppol2tp_setsockopt()     and pppol2tp_getsockopt() functions in the Linux     kernel's PPP over L2TP implementation handled requests     with a non-SOL_PPPOL2TP socket option level. A local,     unprivileged user could use this flaw to escalate their     privileges on the system.(CVE-2014-4943)

  - 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)

  - A NULL pointer dereference flaw was found in the way     the Linux kernel's Stream Control Transmission Protocol     (SCTP) implementation handled simultaneous connections     between the same hosts. A remote attacker could use     this flaw to crash the system.(CVE-2014-5077)

  - 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)

  - 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-2014-5472)

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

  - Buffer overflow in net/ceph/auth_x.c in Ceph, as used     in the Linux kernel before 3.16.3, allows remote     attackers to cause a denial of service (memory     corruption and panic) or possibly have unspecified     other impact via a long unencrypted auth     ticket.(CVE-2014-6416)

  - net/ceph/auth_x.c in Ceph, as used in the Linux kernel     before 3.16.3, does not properly consider the     possibility of kmalloc failure, which allows remote     attackers to cause a denial of service (system crash)     or possibly have unspecified other impact via a long     unencrypted auth ticket.(CVE-2014-6417)

  - net/ceph/auth_x.c in Ceph, as used in the Linux kernel     before 3.16.3, does not properly validate auth replies,     which allows remote attackers to cause a denial of     service (system crash) or possibly have unspecified     other impact via crafted data from the IP address of a     Ceph Monitor.(CVE-2014-6418)

  - A NULL pointer dereference flaw was found in the way     the Linux kernel's Common Internet File System (CIFS)     implementation handled mounting of file system shares.
    A remote attacker could use this flaw to crash a client     system that would mount a file system share from a     malicious server.(CVE-2014-7145)

  - A denial of service flaw was found in the way the Linux     kernel's XFS file system implementation ordered     directory hashes under certain conditions. A local     attacker could use this flaw to corrupt the file system     by creating directories with colliding hash values,     potentially resulting in a system crash.(CVE-2014-7283)

  - An out-of-bounds memory access flaw, CVE-2014-7825, was     found in the syscall tracing functionality of the Linux     kernel's perf subsystem. A local, unprivileged user     could use this flaw to crash the system. Additionally,     an out-of-bounds memory access flaw, CVE-2014-7826, was     found in the syscall tracing functionality of the Linux     kernel's ftrace subsystem. On a system with ftrace     syscall tracing enabled, a local, unprivileged user     could use this flaw to crash the system, or escalate     their privileges.(CVE-2014-7825)

  - An out-of-bounds memory access flaw, CVE-2014-7825, was     found in the syscall tracing functionality of the Linux     kernel's perf subsystem. A local, unprivileged user     could use this flaw to crash the system. Additionally,     an out-of-bounds memory access flaw, CVE-2014-7826, was     found in the syscall tracing functionality of the Linux     kernel's ftrace subsystem. On a system with ftrace     syscall tracing enabled, a local, unprivileged user     could use this flaw to crash the system, or escalate     their privileges.(CVE-2014-7826)

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

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in the way the Linux kernel's perf     subsystem retrieved userlevel stack traces on PowerPC     systems. A local, unprivileged user could use this flaw     to cause a denial of service on the system by creating     a special stack layout that would force the     perf_callchain_user_64() function into an infinite     loop.(CVE-2015-6526i1/4%0

  - A vulnerability was found in the Linux kernel. Payloads     of NM entries are not supposed to contain NUL. When     such entry is processed, only the part prior to the     first NUL goes into the concatenation (i.e. the     directory entry name being encoded by a bunch of NM     entries). The process stops when the amount collected     so far + the claimed amount in the current NM entry     exceed 254. However, the value returned as the total     length is the sum of *claimed* sizes, not the actual     amount collected. And that's what will be passed to     readdir() callback as the name length - 8Kb
    __copy_to_user() from a buffer allocated by
    __get_free_page().(CVE-2016-4913i1/4%0

  - The perf_trace_event_perm function in     kernel/trace/trace_event_perf.c in the Linux kernel     before 3.12.2 does not properly restrict access to the     perf subsystem, which allows local users to enable     function tracing via a crafted     application.(CVE-2013-2930i1/4%0

  - The mincore() implementation in mm/mincore.c in the     Linux kernel through 4.19.13 allowed local attackers to     observe page cache access patterns of other processes     on the same system, potentially allowing sniffing of     secret information. (Fixing this affects the output of     the fincore program.) Limited remote exploitation may     be possible, as demonstrated by latency differences in     accessing public files from an Apache HTTP     Server.(CVE-2019-5489i1/4%0

  - It was found that the espfix functionality could be     bypassed by installing a 16-bit RW data segment into     GDT instead of LDT (which espfix checks), and using     that segment on the stack. A local, unprivileged user     could potentially use this flaw to leak kernel stack     addresses.(CVE-2014-8133i1/4%0

  - An issue was discovered in the btrfs filesystem code in     the Linux kernel. An out-of-bounds access is possible     in write_extent_buffer() when mounting and operating a     crafted btrfs image due to a lack of verification at     mount time within the btrfs_read_block_groups() in     fs/btrfs/extent-tree.c function. This could lead to a     system crash and a denial of service.(CVE-2018-14610i1/4%0

  - kernel/bpf/verifier.c in the Linux kernel through     4.14.8 mishandles states_equal comparisons between the     pointer data type and the UNKNOWN_VALUE data type,     which allows local users to obtain potentially     sensitive address information, aka a 'pointer     leak.'(CVE-2017-17864i1/4%0

  - drivers/hid/hid-lenovo-tpkbd.c in the Human Interface     Device (HID) subsystem in the Linux kernel through     3.11, when CONFIG_HID_LENOVO_TPKBD is enabled, allows     physically proximate attackers to cause a denial of     service (heap-based out-of-bounds write) via a crafted     device.(CVE-2013-2894i1/4%0

  - Memory leak in the sas_smp_get_phy_events function in     drivers/scsi/libsas/sas_expander.c in the Linux kernel     allows local users to cause a denial of service (kernel     memory exhaustion) via multiple read accesses to files     in the /sys/class/sas_phy directory.(CVE-2018-7757i1/4%0

  - It was found that the original fix for CVE-2016-6786     was incomplete. There exist a race between two     concurrent sys_perf_event_open() calls when both try     and move the same pre-existing software group into a     hardware context.(CVE-2017-6001i1/4%0

  - In the Linux kernel before 4.20.12,     net/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP     NAT module has insufficient ASN.1 length checks (aka an     array index error), making out-of-bounds read and write     operations possible, leading to an OOPS or local     privilege escalation. This affects snmp_version and     snmp_helper.(CVE-2019-9162i1/4%0

  - An information leak flaw was found in the way the Linux     kernel's Advanced Linux Sound Architecture (ALSA)     implementation handled access of the user control's     state. A local, privileged user could use this flaw to     leak kernel memory to user space.(CVE-2014-4652i1/4%0

  - A flaw was found that the vfs_rename() function did not     detect hard links on overlayfs. A local, unprivileged     user could use the rename syscall on overlayfs on top     of xfs to crash the system.(CVE-2016-6198i1/4%0

  - It was found that when file permissions were modified     via chmod and the user modifying them was not in the     owning group or capable of CAP_FSETID, the setgid bit     would be cleared. Setting a POSIX ACL via setxattr sets     the file permissions as well as the new ACL, but     doesn't clear the setgid bit in a similar way. This     could allow a local user to gain group privileges via     certain setgid applications.(CVE-2016-7097i1/4%0

  - A flaw was found in the way the Linux kernel's Crypto     subsystem handled automatic loading of kernel modules.
    A local user could use this flaw to load any installed     kernel module, and thus increase the attack surface of     the running kernel.(CVE-2014-9644i1/4%0

  - An arbitrary memory r/w access issue was found in the     Linux kernel compiled with the eBPF bpf(2) system call     (CONFIG_BPF_SYSCALL) support. The issue could occur due     to calculation errors in the eBPF verifier module,     triggered by user supplied malicious BPF program. An     unprivileged user could use this flaw to escalate their     privileges on a system. Setting parameter     'kernel.unprivileged_bpf_disabled=1' prevents such     privilege escalation by restricting access to bpf(2)     call.(CVE-2017-16995i1/4%0

  - A flaw was found in the implementation of associative     arrays where the add_key systemcall and KEYCTL_UPDATE     operations allowed for a NULL payload with a nonzero     length. When accessing the payload within this length     parameters value, an unprivileged user could trivially     cause a NULL pointer dereference (kernel     oops).(CVE-2017-15274i1/4%0

  - A flaw was found in the Linux kernel's keyring handling     code: the key_reject_and_link() function could be     forced to free an arbitrary memory block. An attacker     could use this flaw to trigger a use-after-free     condition on the system, potentially allowing for     privilege escalation.(CVE-2016-4470i1/4%0

  - A flaw was found in the way certain interfaces of the     Linux kernel's Infiniband subsystem used write() as     bi-directional ioctl() replacement, which could lead to     insufficient memory security checks when being invoked     using the splice() system call. A local unprivileged     user on a system with either Infiniband hardware     present or RDMA Userspace Connection Manager Access     module explicitly loaded, could use this flaw to     escalate their privileges on the     system.(CVE-2016-4565i1/4%0

  - It was found that the Linux kernel's IPv6 network stack     did not properly validate the value of the MTU variable     when it was set. A remote attacker could potentially     use this flaw to disrupt a target system's networking     (packet loss) by setting an invalid MTU value, for     example, via a NetworkManager daemon that is processing     router advertisement packets running on the target     system.(CVE-2015-8215i1/4%0

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Race condition in the tlv handler functionality in the snd_ctl_elem_user_tlv function in     sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 allows local     users to obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.
    (CVE-2014-4652)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-1971 advisory.

    - [alsa] control: Make sure that id->index does not overflow (Jaroslav Kysela) [1117313 1117314]     {CVE-2014-4656}
    - [alsa] control: Handle numid overflow (Jaroslav Kysela) [1117313 1117314] {CVE-2014-4656}
    - [alsa] control: Protect user controls against concurrent access (Jaroslav Kysela) [1117338 1117339]     {CVE-2014-4652}
    - [alsa] control: Fix replacing user controls (Jaroslav Kysela) [1117323 1117324] {CVE-2014-4654     CVE-2014-4655}
    - [net] sctp: fix remote memory pressure from excessive queueing (Daniel Borkmann) [1155750 1152755]     {CVE-2014-3688}
    - [net] sctp: fix panic on duplicate ASCONF chunks (Daniel Borkmann) [1155737 1152755] {CVE-2014-3687}
    - [net] sctp: fix skb_over_panic when receiving malformed ASCONF chunks (Daniel Borkmann) [1147856     1152755] {CVE-2014-3673}
    - [lib] assoc_array: Fix termination condition in assoc array garbage collection (David Howells) [1155136     1139431] {CVE-2014-3631}
    - [fs] udf: Avoid infinite loop when processing indirect ICBs (Jacob Tanenbaum) [1142321 1142322]     {CVE-2014-6410}
    - [hid] picolcd: fix memory corruption via OOB write (Jacob Tanenbaum) [1141408 1141409] {CVE-2014-3186}
    - [usb] serial/whiteheat: fix memory corruption flaw (Jacob Tanenbaum) [1141403 1141404] {CVE-2014-3185}
    - [hid] fix off by one error in various _report_fixup routines (Jacob Tanenbaum) [1141393 1141394]     {CVE-2014-3184}
    - [hid] logitech-dj: fix OOB array access (Jacob Tanenbaum) [1141211 1141212] {CVE-2014-3182}
    - [hid] fix OOB write in magicmouse driver (Jacob Tanenbaum) [1141176 1141177] {CVE-2014-3181}
    - [fs] vfs: fix ref count leak in path_mountpoint() (Ian Kent) [1122481 1122376] {CVE-2014-5045}
    - [kernel] ptrace: get_dumpable() incorrect tests (Jacob Tanenbaum) [1111605 1111606] {CVE-2013-2929}
    - [media] media-device: fix an information leakage (Jacob Tanenbaum) [1109776 1109777] {CVE-2014-1739}
    - [target] rd: Refactor rd_build_device_space + rd_release_device_space (Denys Vlasenko) [1108754 1108755]     {CVE-2014-4027}
    - [virt] kvm: fix PIT timer race condition (Petr  Matousek) [1144879 1144880] {CVE-2014-3611}
    - [virt] kvm/vmx: handle invept and invvpid vm exits gracefully (Petr  Matousek) [1145449 1116936]     [1144828 1144829] {CVE-2014-3645 CVE-2014-3646}

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 remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2337-1 advisory.

    A flaw was discovered in the Linux kernel virtual machine's (kvm) validation of interrupt requests (irq).
    A guest OS user could exploit this flaw to cause a denial of service (host OS crash). (CVE-2014-0155)

    Andy Lutomirski discovered a flaw in the authorization of netlink socket operations when a socket is     passed to a process of more privilege. A local user could exploit this flaw to bypass access restrictions     by having a privileged executable do something it was not intended to do. (CVE-2014-0181)

    An information leak was discovered in the Linux kernels aio_read_events_ring function. A local user could     exploit this flaw to obtain potentially sensitive information from kernel memory. (CVE-2014-0206)

    A flaw was discovered in the Linux kernel's implementation of user namespaces with respect to inode     permissions. A local user could exploit this flaw by creating a user namespace to gain administrative     privileges. (CVE-2014-4014)

    An information leak was discovered in the rd_mcp backend of the iSCSI target subsystem in the Linux     kernel. A local user could exploit this flaw to obtain sensitive information from ramdisk_mcp memory by     leveraging access to a SCSI initiator. (CVE-2014-4027)

    Sasha Levin reported an issue with the Linux kernel's shared memory subsystem when used with range     notifications and hole punching. A local user could exploit this flaw to cause a denial of service.
    (CVE-2014-4171)

    Toralf Frster reported an error in the Linux kernels syscall auditing on 32 bit x86 platforms. A local     user could exploit this flaw to cause a denial of service (OOPS and system crash). (CVE-2014-4508)

    An information leak was discovered in the control implemenation of the Advanced Linux Sound Architecture     (ALSA) subsystem in the Linux kernel. A local user could exploit this flaw to obtain sensitive information     from kernel memory. (CVE-2014-4652)

    A use-after-free flaw was discovered in the Advanced Linux Sound Architecture (ALSA) control     implementation of the Linux kernel. A local user could exploit this flaw to cause a denial of service     (system crash). (CVE-2014-4653)

    A authorization bug was discovered with the snd_ctl_elem_add function of the Advanced Linux Sound     Architecture (ALSA) in the Linux kernel. A local user could exploit his bug to cause a denial of service     (remove kernel controls). (CVE-2014-4654)

    A flaw discovered in how the snd_ctl_elem function of the Advanced Linux Sound Architecture (ALSA) handled     a reference count. A local user could exploit this flaw to cause a denial of service (integer overflow and     limit bypass). (CVE-2014-4655)

    An integer overflow flaw was discovered in the control implementation of the Advanced Linux Sound     Architecture (ALSA). A local user could exploit this flaw to cause a denial of service (system crash).
    (CVE-2014-4656)

    An integer underflow flaw was discovered in the Linux kernel's handling of the backlog value for certain     SCTP packets. A remote attacker could exploit this flaw to cause a denial of service (socket outage) via a     crafted SCTP packet. (CVE-2014-4667)

    Vasily Averin discover a reference count flaw during attempts to umount in conjunction with a symlink. A     local user could exploit this flaw to cause a denial of service (memory consumption or use after free) or     possibly have other unspecified impact. (CVE-2014-5045)

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

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

* A flaw was found in the way Linux kernel's Transparent Huge Pages (THP) implementation handled non-huge page migration. A local, unprivileged user could use this flaw to crash the kernel by migrating transparent hugepages. (CVE-2014-3940, Moderate)

* A buffer overflow flaw was found in the way the Linux kernel's eCryptfs implementation decoded encrypted file names. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2014-9683, Moderate)

* A race condition flaw was found between the chown and execve system calls. When changing the owner of a setuid user binary to root, the race condition could momentarily make the binary setuid root. A local, unprivileged user could potentially use this flaw to escalate their privileges on the system. (CVE-2015-3339, Moderate)

* 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 HID reports with an invalid report descriptor size. 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 way the Linux kernel's Advanced Linux Sound Architecture (ALSA) implementation handled access of the user control's state. A local, privileged user could use this flaw to leak kernel memory to user space. (CVE-2014-4652, Low)

* It was found that the espfix functionality could be bypassed by installing a 16-bit RW data segment into GDT instead of LDT (which espfix checks), and using that segment on the stack. A local, unprivileged user could potentially use this flaw to leak kernel stack addresses. (CVE-2014-8133, Low)

* An information leak flaw was found in the Linux kernel's IEEE 802.11 wireless networking implementation. When software encryption was used, a remote attacker could use this flaw to leak up to 8 bytes of plaintext. (CVE-2014-8709, Low)

* It was found that the Linux kernel KVM subsystem's sysenter instruction emulation was not sufficient. An unprivileged guest user could use this flaw to escalate their privileges by tricking the hypervisor to emulate a SYSENTER instruction in 16-bit mode, if the guest OS did not initialize the SYSENTER model-specific registers (MSRs). Note: Certified guest operating systems for Scientific Linux with KVM do initialize the SYSENTER MSRs and are thus not vulnerable to this issue when running on a KVM hypervisor. (CVE-2015-0239, Low)

The system must be rebooted for this update to take effect.

The SUSE Linux Enterprise Server 11 SP2 LTSS received a roll up update to fix several security and non-security issues.

The following security issues have been fixed :

  - CVE-2014-0055: The get_rx_bufs function in     drivers/vhost/net.c in the vhost-net subsystem in the     Linux kernel package before 2.6.32-431.11.2 on Red Hat     Enterprise Linux (RHEL) 6 does not properly handle     vhost_get_vq_desc errors, which allows guest OS users to     cause a denial of service (host OS crash) via     unspecified vectors. (bnc#870173)

  - CVE-2014-0077: drivers/vhost/net.c in the Linux kernel     before 3.13.10, when mergeable buffers are disabled,     does not properly validate packet lengths, which allows     guest OS users to cause a denial of service (memory     corruption and host OS crash) or possibly gain     privileges on the host OS via crafted packets, related     to the handle_rx and get_rx_bufs functions. (bnc#870576)

  - CVE-2014-1739: The media_device_enum_entities function     in drivers/media/media-device.c in the Linux kernel     before 3.14.6 does not initialize a certain data     structure, which allows local users to obtain sensitive     information from kernel memory by leveraging /dev/media0     read access for a MEDIA_IOC_ENUM_ENTITIES ioctl call.
    (bnc#882804)

  - CVE-2014-2706: Race condition in the mac80211 subsystem     in the Linux kernel before 3.13.7 allows remote     attackers to cause a denial of service (system crash)     via network traffic that improperly interacts with the     WLAN_STA_PS_STA state (aka power-save mode), related to     sta_info.c and tx.c. (bnc#871797)

  - CVE-2014-2851: Integer overflow in the ping_init_sock     function in net/ipv4/ping.c in the Linux kernel through     3.14.1 allows local users to cause a denial of service     (use-after-free and system crash) or possibly gain     privileges via a crafted application that leverages an     improperly managed reference counter. (bnc#873374)

  - CVE-2014-3144: The (1) BPF_S_ANC_NLATTR and (2)     BPF_S_ANC_NLATTR_NEST extension implementations in the     sk_run_filter function in net/core/filter.c in the Linux     kernel through 3.14.3 do not check whether a certain     length value is sufficiently large, which allows local     users to cause a denial of service (integer underflow     and system crash) via crafted BPF instructions. NOTE:
    the affected code was moved to the __skb_get_nlattr and
    __skb_get_nlattr_nest functions before the vulnerability     was announced. (bnc#877257)

  - CVE-2014-3145: The BPF_S_ANC_NLATTR_NEST extension     implementation in the sk_run_filter function in     net/core/filter.c in the Linux kernel through 3.14.3     uses the reverse order in a certain subtraction, which     allows local users to cause a denial of service     (over-read and system crash) via crafted BPF     instructions. NOTE: the affected code was moved to the
    __skb_get_nlattr_nest function before the vulnerability     was announced. (bnc#877257)

  - CVE-2014-3917: kernel/auditsc.c in the Linux kernel     through 3.14.5, when CONFIG_AUDITSYSCALL is enabled with     certain syscall rules, allows local users to obtain     potentially sensitive single-bit values from kernel     memory or cause a denial of service (OOPS) via a large     value of a syscall number. (bnc#880484)

  - CVE-2014-4508: 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, allows 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-2014-4652: Race condition in the tlv handler     functionality in the snd_ctl_elem_user_tlv function in     sound/core/control.c in the ALSA control implementation     in the Linux kernel before 3.15.2 allows local users to     obtain sensitive information from kernel memory by     leveraging /dev/snd/controlCX access. (bnc#883795)

  - CVE-2014-4653: sound/core/control.c in the ALSA control     implementation in the Linux kernel before 3.15.2 does     not ensure possession of a read/write lock, which allows     local users to cause a denial of service     (use-after-free) and obtain sensitive information from     kernel memory by leveraging /dev/snd/controlCX access.
    (bnc#883795)

  - CVE-2014-4654: The snd_ctl_elem_add function in     sound/core/control.c in the ALSA control implementation     in the Linux kernel before 3.15.2 does not check     authorization for SNDRV_CTL_IOCTL_ELEM_REPLACE commands,     which allows local users to remove kernel controls and     cause a denial of service (use-after-free and system     crash) by leveraging /dev/snd/controlCX access for an     ioctl call. (bnc#883795)

  - CVE-2014-4655: The snd_ctl_elem_add function in     sound/core/control.c in the ALSA control implementation     in the Linux kernel before 3.15.2 does not properly     maintain the user_ctl_count value, which allows local     users to cause a denial of service (integer overflow and     limit bypass) by leveraging /dev/snd/controlCX access     for a large number of SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl     calls. (bnc#883795)

  - CVE-2014-4656: Multiple integer overflows in     sound/core/control.c in the ALSA control implementation     in the Linux kernel before 3.15.2 allow local users to     cause a denial of service by leveraging     /dev/snd/controlCX access, related to (1) index values     in the snd_ctl_add function and (2) numid values in the     snd_ctl_remove_numid_conflict function. (bnc#883795)

  - CVE-2014-4667: The sctp_association_free function in     net/sctp/associola.c in the Linux kernel before 3.15.2     does not properly manage a certain backlog value, which     allows remote attackers to cause a denial of service     (socket outage) via a crafted SCTP packet. (bnc#885422)

  - CVE-2014-4699: The Linux kernel before 3.15.4 on Intel     processors does not properly restrict use of a     non-canonical value for the saved RIP address in the     case of a system call that does not use IRET, which     allows local users to leverage a race condition and gain     privileges, or cause a denial of service (double fault),     via a crafted application that makes ptrace and fork     system calls. (bnc#885725)

  - CVE-2014-5077: The sctp_assoc_update function in     net/sctp/associola.c in the Linux kernel through 3.15.8,     when SCTP authentication is enabled, allows 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. (bnc#889173)

  - CVE-2013-4299: Interpretation conflict in     drivers/md/dm-snap-persistent.c in the Linux kernel     through 3.11.6 allows remote authenticated users to     obtain sensitive information or modify data via a     crafted mapping to a snapshot block device. (bnc#846404)

The following bugs have been fixed :

  - pagecachelimit: reduce lru_lock contention for heavy     parallel reclaim (bnc#878509, bnc#864464).

  - pagecachelimit: reduce lru_lock contention for heavy     parallel reclaim kabi fixup (bnc#878509, bnc#864464).

  - ACPI / PAD: call schedule() when need_resched() is true     (bnc#866911).

  - kabi: Fix breakage due to addition of user_ctl_lock     (bnc#883795).

  - cpuset: Fix memory allocator deadlock (bnc#876590).

  - tcp: allow to disable cwnd moderation in TCP_CA_Loss     state (bnc#879921).

  - tcp: adapt selected parts of RFC 5682 and PRR logic     (bnc#879921).

  - vlan: more careful checksum features handling     (bnc#872634).

  - bonding: fix vlan_features computing (bnc#872634).

  - NFSv4: Minor cleanups for nfs4_handle_exception and     nfs4_async_handle_error (bnc#889324).

  - NFS: Do not lose sockets when nfsd shutdown races with     connection timeout (bnc#871854).

  - reiserfs: call truncate_setsize under tailpack mutex     (bnc#878115).

  - reiserfs: drop vmtruncate (bnc#878115).

  - megaraid_sas: mask off flags in ioctl path (bnc#886474).

  - block: fix race between request completion and timeout     handling (bnc#881051).

  - drivers/rtc/interface.c: fix infinite loop in     initializing the alarm (bnc#871676).

  - xfrm: check peer pointer for null before calling     inet_putpeer() (bnc#877775).

  - supported.conf: Add firewire/nosy as supported. This     driver is the replacement for the ieee1394/pcilynx     driver, which was supported.

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.

ID	Name	Product	Family	Published	Updated	Severity
84936	RHEL 6 : kernel (RHSA-2015:1272)	Nessus	Red Hat Local Security Checks	7/23/2015	3/20/2025	high
124805	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1481)	Nessus	Huawei Local Security Checks	5/13/2019	2/19/2021	high
124985	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1532)	Nessus	Huawei Local Security Checks	5/14/2019	5/20/2022	high
218303	Linux Distros Unpatched Vulnerability : CVE-2014-4652	Nessus	Misc.	3/4/2025	7/17/2026	medium
79845	Oracle Linux 7 : kernel (ELSA-2014-1971)	Nessus	Oracle Linux Local Security Checks	12/10/2014	2/9/2026	high
79848	RHEL 7 : kernel (RHSA-2014:1971)	Nessus	Red Hat Local Security Checks	12/10/2014	1/14/2021	high
76557	SuSE 11.3 Security Update : Linux kernel (SAT Patch Numbers 9488 / 9491 / 9493)	Nessus	SuSE Local Security Checks	7/17/2014	1/19/2021	critical
77492	Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2337-1)	Nessus	Ubuntu Local Security Checks	9/3/2014	8/28/2024	medium
85198	Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20150722)	Nessus	Scientific Linux Local Security Checks	8/4/2015	1/14/2021	medium
83633	SUSE SLES11 Security Update : kernel (SUSE-SU-2014:1105-1)	Nessus	SuSE Local Security Checks	5/20/2015	1/19/2021	high

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