Ubuntu 3336-1: NSS vulnerability

    Date21 Jun 2017
    CategoryUbuntu
    45
    Posted ByLinuxSecurity Advisories
    NSS could be made to crash if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-3336-1
    June 21, 2017
    
    nss vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 17.04
    - Ubuntu 16.10
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    NSS could be made to crash if it received specially crafted network
    traffic.
    
    Software Description:
    - nss: Network Security Service library
    
    Details:
    
    It was discovered that NSS incorrectly handled certain empty SSLv2
    messages. A remote attacker could possibly use this issue to cause NSS to
    crash, resulting in a denial of service.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 17.04:
      libnss3                         2:3.28.4-0ubuntu0.17.04.2
    
    Ubuntu 16.10:
      libnss3                         2:3.28.4-0ubuntu0.16.10.2
    
    Ubuntu 16.04 LTS:
      libnss3                         2:3.28.4-0ubuntu0.16.04.2
    
    Ubuntu 14.04 LTS:
      libnss3                         2:3.28.4-0ubuntu0.14.04.2
    
    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:
      https://www.ubuntu.com/usn/usn-3336-1
      CVE-2017-7502
    
    Package Information:
      https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.17.04.2
      https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.10.2
      https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.16.04.2
      https://launchpad.net/ubuntu/+source/nss/2:3.28.4-0ubuntu0.14.04.2
    
    
    
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