Ubuntu 3256-1: Linux kernel vulnerability

    Date05 Apr 2017
    CategoryUbuntu
    47
    Posted ByLinuxSecurity Advisories
    The system could be made to crash under certain conditions.
    ==========================================================================
    Ubuntu Security Notice USN-3256-1
    April 05, 2017
    
    linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon,
    linux-ti-omap4 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.10
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    The system could be made to crash under certain conditions.
    
    Software Description:
    - linux: Linux kernel
    - linux-raspi2: Linux kernel for Raspberry Pi 2
    - linux-aws: Linux kernel for Amazon Web Services (AWS) systems
    - linux-gke: Linux kernel for Google Container Engine (GKE) systems
    - linux-snapdragon: Linux kernel for Snapdragon Processors
    - linux-ti-omap4: Linux kernel for OMAP4
    
    Details:
    
    Andrey Konovalov discovered that the AF_PACKET implementation in the Linux
    kernel did not properly validate certain block-size data. A local 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 16.10:
      linux-image-4.8.0-1033-raspi2   4.8.0-1033.36
      linux-image-4.8.0-46-generic    4.8.0-46.49
      linux-image-4.8.0-46-generic-lpae  4.8.0-46.49
      linux-image-4.8.0-46-lowlatency  4.8.0-46.49
      linux-image-4.8.0-46-powerpc-e500mc  4.8.0-46.49
      linux-image-4.8.0-46-powerpc-smp  4.8.0-46.49
      linux-image-4.8.0-46-powerpc64-emb  4.8.0-46.49
      linux-image-generic             4.8.0.46.58
      linux-image-generic-lpae        4.8.0.46.58
      linux-image-lowlatency          4.8.0.46.58
      linux-image-powerpc-e500mc      4.8.0.46.58
      linux-image-powerpc-smp         4.8.0.46.58
      linux-image-powerpc64-smp       4.8.0.46.58
      linux-image-raspi2              4.8.0.1033.37
    
    Ubuntu 16.04 LTS:
      linux-image-4.4.0-1010-gke      4.4.0-1010.10
      linux-image-4.4.0-1013-aws      4.4.0-1013.22
      linux-image-4.4.0-1052-raspi2   4.4.0-1052.59
      linux-image-4.4.0-1055-snapdragon  4.4.0-1055.59
      linux-image-4.4.0-72-generic    4.4.0-72.93
      linux-image-4.4.0-72-generic-lpae  4.4.0-72.93
      linux-image-4.4.0-72-lowlatency  4.4.0-72.93
      linux-image-4.4.0-72-powerpc-e500mc  4.4.0-72.93
      linux-image-4.4.0-72-powerpc-smp  4.4.0-72.93
      linux-image-4.4.0-72-powerpc64-smp  4.4.0-72.93
      linux-image-aws                 4.4.0.1013.16
      linux-image-generic             4.4.0.72.78
      linux-image-generic-lpae        4.4.0.72.78
      linux-image-gke                 4.4.0.1010.12
      linux-image-lowlatency          4.4.0.72.78
      linux-image-powerpc-e500mc      4.4.0.72.78
      linux-image-powerpc-smp         4.4.0.72.78
      linux-image-powerpc64-smp       4.4.0.72.78
      linux-image-powerpc64-smp-lts-utopic  4.4.0.72.78
      linux-image-powerpc64-smp-lts-vivid  4.4.0.72.78
      linux-image-powerpc64-smp-lts-wily  4.4.0.72.78
      linux-image-powerpc64-smp-lts-xenial  4.4.0.72.78
      linux-image-raspi2              4.4.0.1052.53
      linux-image-snapdragon          4.4.0.1055.48
    
    Ubuntu 14.04 LTS:
      linux-image-3.13.0-116-generic  3.13.0-116.163
      linux-image-3.13.0-116-generic-lpae  3.13.0-116.163
      linux-image-3.13.0-116-lowlatency  3.13.0-116.163
      linux-image-3.13.0-116-powerpc-e500  3.13.0-116.163
      linux-image-3.13.0-116-powerpc-e500mc  3.13.0-116.163
      linux-image-3.13.0-116-powerpc-smp  3.13.0-116.163
      linux-image-3.13.0-116-powerpc64-smp  3.13.0-116.163
      linux-image-generic             3.13.0.116.126
      linux-image-generic-lpae        3.13.0.116.126
      linux-image-lowlatency          3.13.0.116.126
      linux-image-powerpc-e500        3.13.0.116.126
      linux-image-powerpc-e500mc      3.13.0.116.126
      linux-image-powerpc-smp         3.13.0.116.126
      linux-image-powerpc64-smp       3.13.0.116.126
    
    Ubuntu 12.04 LTS:
      linux-image-3.2.0-126-generic   3.2.0-126.169
      linux-image-3.2.0-126-generic-pae  3.2.0-126.169
      linux-image-3.2.0-126-highbank  3.2.0-126.169
      linux-image-3.2.0-126-omap      3.2.0-126.169
      linux-image-3.2.0-126-powerpc-smp  3.2.0-126.169
      linux-image-3.2.0-126-powerpc64-smp  3.2.0-126.169
      linux-image-3.2.0-126-virtual   3.2.0-126.169
      linux-image-3.2.0-1504-omap4    3.2.0-1504.131
      linux-image-generic             3.2.0.126.141
      linux-image-generic-pae         3.2.0.126.141
      linux-image-highbank            3.2.0.126.141
      linux-image-omap                3.2.0.126.141
      linux-image-omap4               3.2.0.1504.99
      linux-image-powerpc-smp         3.2.0.126.141
      linux-image-powerpc64-smp       3.2.0.126.141
      linux-image-virtual             3.2.0.126.141
    
    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:
      http://www.ubuntu.com/usn/usn-3256-1
      CVE-2017-7308
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux/4.8.0-46.49
      https://launchpad.net/ubuntu/+source/linux-raspi2/4.8.0-1033.36
      https://launchpad.net/ubuntu/+source/linux/4.4.0-72.93
      https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1013.22
      https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1010.10
      https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1052.59
      https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1055.59
      https://launchpad.net/ubuntu/+source/linux/3.13.0-116.163
      https://launchpad.net/ubuntu/+source/linux/3.2.0-126.169
      https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1504.131
    
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