Ubuntu 3470-1: Linux kernel vulnerabilities

    Date31 Oct 2017
    CategoryUbuntu
    52
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the Linux kernel.
    ==========================================================================
    Ubuntu Security Notice USN-3470-1
    October 31, 2017
    
    linux vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in the Linux kernel.
    
    Software Description:
    - linux: Linux kernel
    
    Details:
    
    Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build()
    function in the Linux kernel. A local attacker could use to cause a denial
    of service (system crash) or possibly execute arbitrary code with
    administrative privileges. (CVE-2016-8632)
    
    Dmitry Vyukov discovered that a race condition existed in the timerfd
    subsystem of the Linux kernel when handling might_cancel queuing. A local
    attacker could use this to cause a denial of service (system crash) or
    possibly execute arbitrary code. (CVE-2017-10661)
    
    It was discovered that the Flash-Friendly File System (f2fs) implementation
    in the Linux kernel did not properly validate superblock metadata. A local
    attacker could use this to cause a denial of service (system crash) or
    possibly execute arbitrary code. (CVE-2017-10662, CVE-2017-10663)
    
    Anthony Perard discovered that the Xen virtual block driver did not
    properly initialize some data structures before passing them to user space.
    A local attacker in a guest VM could use this to expose sensitive
    information from the host OS or other guest VMs. (CVE-2017-10911)
    
    It was discovered that a use-after-free vulnerability existed in the POSIX
    message queue implementation in the Linux kernel. A local attacker could
    use this to cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2017-11176)
    
    Dave Chinner discovered that the XFS filesystem did not enforce that the
    realtime inode flag was settable only on filesystems on a realtime device.
    A local attacker could use this to cause a denial of service (system
    crash). (CVE-2017-14340)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 LTS:
      linux-image-3.13.0-135-generic  3.13.0-135.184
      linux-image-3.13.0-135-generic-lpae  3.13.0-135.184
      linux-image-3.13.0-135-lowlatency  3.13.0-135.184
      linux-image-3.13.0-135-powerpc-e500  3.13.0-135.184
      linux-image-3.13.0-135-powerpc-e500mc  3.13.0-135.184
      linux-image-3.13.0-135-powerpc-smp  3.13.0-135.184
      linux-image-3.13.0-135-powerpc64-emb  3.13.0-135.184
      linux-image-3.13.0-135-powerpc64-smp  3.13.0-135.184
      linux-image-generic             3.13.0.135.144
      linux-image-generic-lpae        3.13.0.135.144
      linux-image-lowlatency          3.13.0.135.144
      linux-image-powerpc-e500        3.13.0.135.144
      linux-image-powerpc-e500mc      3.13.0.135.144
      linux-image-powerpc-smp         3.13.0.135.144
      linux-image-powerpc64-emb       3.13.0.135.144
      linux-image-powerpc64-smp       3.13.0.135.144
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    ATTENTION: Due to an unavoidable ABI change the kernel updates have
    been given a new version number, which requires you to recompile and
    reinstall all third party kernel modules you might have installed.
    Unless you manually uninstalled the standard kernel metapackages
    (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
    linux-powerpc), a standard system upgrade will automatically perform
    this as well.
    
    References:
      https://www.ubuntu.com/usn/usn-3470-1
      CVE-2016-8632, CVE-2017-10661, CVE-2017-10662, CVE-2017-10663,
      CVE-2017-10911, CVE-2017-11176, CVE-2017-14340
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux/3.13.0-135.184
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"23","type":"x","order":"1","pct":56.1,"resources":[]},{"id":"88","title":"Should be more technical","votes":"5","type":"x","order":"2","pct":12.2,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"13","type":"x","order":"3","pct":31.71,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    Advisories

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.