Ubuntu 2823-1: Linux kernel vulnerabilities

    Date01 Dec 2015
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    Ubuntu Security Notice USN-2823-1
    December 01, 2015
    linux vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 14.04 LTS
    Several security issues were fixed in the kernel.
    Software Description:
    - linux: Linux kernel
    It was discovered that the SCTP protocol implementation in the Linux kernel
    performed an incorrect sequence of protocol-initialization steps. A local
    attacker could use this to cause a denial of service (system crash).
    Dmitry Vyukov discovered that the Linux kernel's keyring handler attempted
    to garbage collect incompletely instantiated keys. A local unprivileged
    attacker could use this to cause a denial of service (system crash).
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 14.04 LTS:
      linux-image-3.13.0-71-generic   3.13.0-71.114
      linux-image-3.13.0-71-generic-lpae  3.13.0-71.114
      linux-image-3.13.0-71-lowlatency  3.13.0-71.114
      linux-image-3.13.0-71-powerpc-e500  3.13.0-71.114
      linux-image-3.13.0-71-powerpc-e500mc  3.13.0-71.114
      linux-image-3.13.0-71-powerpc-smp  3.13.0-71.114
      linux-image-3.13.0-71-powerpc64-emb  3.13.0-71.114
      linux-image-3.13.0-71-powerpc64-smp  3.13.0-71.114
    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. If
    you use linux-restricted-modules, you have to update that package as
    well to get modules which work with the new kernel version. Unless you
    manually uninstalled the standard kernel metapackages (e.g. linux-generic,
    linux-server, linux-powerpc), a standard system upgrade will automatically
    perform this as well.
      CVE-2015-5283, CVE-2015-7872
    Package Information:
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