Ubuntu 2339-2: Libgcrypt vulnerability

    Date03 Sep 2014
    CategoryUbuntu
    53
    Posted ByLinuxSecurity Advisories
    Libgcrypt could expose sensitive information when performing decryption.
    ==========================================================================
    Ubuntu Security Notice USN-2339-2
    September 03, 2014
    
    libgcrypt11 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Libgcrypt could expose sensitive information when performing decryption.
    
    Software Description:
    - libgcrypt11: LGPL Crypto library
    
    Details:
    
    Daniel Genkin, Adi Shamir, and Eran Tromer discovered that Libgcrypt was
    susceptible to an adaptive chosen ciphertext attack via physical side
    channels. A local attacker could use this attack to possibly recover
    private keys.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 LTS:
      libgcrypt11                     1.5.3-2ubuntu4.1
    
    Ubuntu 12.04 LTS:
      libgcrypt11                     1.5.0-3ubuntu0.3
    
    Ubuntu 10.04 LTS:
      libgcrypt11                     1.4.4-5ubuntu2.3
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2339-2
      http://www.ubuntu.com/usn/usn-2339-1
      CVE-2014-5270
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.3-2ubuntu4.1
      https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.0-3ubuntu0.3
      https://launchpad.net/ubuntu/+source/libgcrypt11/1.4.4-5ubuntu2.3
    
    
    
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