Ubuntu 3029-1: NSS vulnerability

    Date11 Jul 2016
    CategoryUbuntu
    46
    Posted ByLinuxSecurity Advisories
    NSS could be made to crash or run programs if it processed specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-3029-1
    July 11, 2016
    
    nss vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    - Ubuntu 15.10
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    NSS could be made to crash or run programs if it processed specially
    crafted network traffic.
    
    Software Description:
    - nss: Network Security Service library
    
    Details:
    
    Tyson Smith and Jed Davis discovered that NSS incorrectly handled memory. A
    remote attacker could use this issue to cause NSS to crash, resulting in a
    denial of service, or possibly execute arbitrary code.
    
    This update refreshes the NSS package to version 3.23 which includes
    the latest CA certificate bundle. As a security improvement, this update
    also modifies NSS behaviour to reject DH key sizes below 1024 bits,
    preventing a possible downgrade attack.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libnss3                         2:3.23-0ubuntu0.16.04.1
    
    Ubuntu 15.10:
      libnss3                         2:3.23-0ubuntu0.15.10.1
    
    Ubuntu 14.04 LTS:
      libnss3                         2:3.23-0ubuntu0.14.04.1
    
    Ubuntu 12.04 LTS:
      libnss3                         2:3.23-0ubuntu0.12.04.1
    
    This update uses a new upstream release, which includes additional bug
    fixes. After a standard system update you need to restart any applications
    that use NSS, such as Evolution and Chromium, to make all the necessary
    changes.
    
    References:
      http://www.ubuntu.com/usn/usn-3029-1
      CVE-2016-2834
    
    Package Information:
      https://launchpad.net/ubuntu/+source/nss/2:3.23-0ubuntu0.16.04.1
      https://launchpad.net/ubuntu/+source/nss/2:3.23-0ubuntu0.15.10.1
      https://launchpad.net/ubuntu/+source/nss/2:3.23-0ubuntu0.14.04.1
      https://launchpad.net/ubuntu/+source/nss/2:3.23-0ubuntu0.12.04.1
    
    
    
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