Ubuntu 2565-1: Linux kernel vulnerabilities

    Date09 Apr 2015
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    Ubuntu Security Notice USN-2565-1
    April 09, 2015
    linux vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 14.10
    Several security issues were fixed in the kernel.
    Software Description:
    - linux: Linux kernel
    An integer overflow was discovered in the stack randomization feature of
    the Linux kernel on 64 bit platforms. A local attacker could exploit this
    flaw to bypass the Address Space Layout Randomization (ASLR) protection
    mechanism. (CVE-2015-1593)
    An information leak was discovered in the Linux Kernel's handling of
    userspace configuration of the link layer control (LLC). A local user could
    exploit this flaw to read data from other sysctl settings. (CVE-2015-2041)
    An information leak was discovered in how the Linux kernel handles setting
    the Reliable Datagram Sockets (RDS) settings. A local user could exploit
    this flaw to read data from other sysctl settings. (CVE-2015-2042)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 14.10:
      linux-image-3.16.0-34-generic   3.16.0-34.45
      linux-image-3.16.0-34-generic-lpae  3.16.0-34.45
      linux-image-3.16.0-34-lowlatency  3.16.0-34.45
      linux-image-3.16.0-34-powerpc-e500mc  3.16.0-34.45
      linux-image-3.16.0-34-powerpc-smp  3.16.0-34.45
      linux-image-3.16.0-34-powerpc64-emb  3.16.0-34.45
      linux-image-3.16.0-34-powerpc64-smp  3.16.0-34.45
    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-2015-1593, CVE-2015-2041, CVE-2015-2042
    Package Information:

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