Linux Security
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    Linux Security

    Ubuntu 2978-3: Linux kernel (Raspberry Pi 2) vulnerability

    Date 16 May 2016
    129
    Posted By LinuxSecurity Advisories
    The system could be made to crash or run programs as an administrator.
    ==========================================================================
    Ubuntu Security Notice USN-2978-3
    May 16, 2016
    
    linux-raspi2 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 15.10
    
    Summary:
    
    The system could be made to crash or run programs as an administrator.
    
    Software Description:
    - linux-raspi2: Linux kernel for Raspberry Pi 2
    
    Details:
    
    Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did
    not properly process certificate files with tags of indefinite length. A
    local unprivileged attacker could use this to cause a denial of service
    (system crash) or possibly execute arbitrary code with administrative
    privileges.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 15.10:
      linux-image-4.2.0-1029-raspi2   4.2.0-1029.38
    
    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-2978-3
      https://www.ubuntu.com/usn/usn-2978-1
      CVE-2016-0758
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux-raspi2/4.2.0-1029.38
    

    Advisories

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