Ubuntu 3193-1: Nettle vulnerability

    Date06 Feb 2017
    CategoryUbuntu
    54
    Posted ByLinuxSecurity Advisories
    Nettle could be made to expose sensitive information over the network.
    ==========================================================================
    Ubuntu Security Notice USN-3193-1
    February 06, 2017
    
    nettle 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:
    
    Nettle could be made to expose sensitive information over the network.
    
    Software Description:
    - nettle: low level cryptographic library (public-key cryptos)
    
    Details:
    
    It was discovered that Nettle incorrectly mitigated certain timing
    side-channel attacks. A remote attacker could possibly use this flaw to
    recover private keys.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.10:
      libnettle6                      3.2-1ubuntu0.16.10.1
    
    Ubuntu 16.04 LTS:
      libnettle6                      3.2-1ubuntu0.16.04.1
    
    Ubuntu 14.04 LTS:
      libnettle4                      2.7.1-1ubuntu0.2
    
    Ubuntu 12.04 LTS:
      libnettle4                      2.4-1ubuntu0.1
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-3193-1
      CVE-2016-6489
    
    Package Information:
      https://launchpad.net/ubuntu/+source/nettle/3.2-1ubuntu0.16.10.1
      https://launchpad.net/ubuntu/+source/nettle/3.2-1ubuntu0.16.04.1
      https://launchpad.net/ubuntu/+source/nettle/2.7.1-1ubuntu0.2
      https://launchpad.net/ubuntu/+source/nettle/2.4-1ubuntu0.1
    
    
    
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