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    Ubuntu 3899-1: OpenSSL vulnerability

    Date27 Feb 2019
    CategoryUbuntu
    3162
    Posted ByLinuxSecurity Advisories
    OpenSSL could be made to expose sensitive information over the network.
    ==========================================================================
    Ubuntu Security Notice USN-3899-1
    February 27, 2019
    
    openssl, openssl1.0 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    OpenSSL could be made to expose sensitive information over the network.
    
    Software Description:
    - openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools
    - openssl: Secure Socket Layer (SSL) cryptographic library and tools
    
    Details:
    
    Juraj Somorovsky, Robert Merget, and Nimrod Aviram discovered that certain
    applications incorrectly used OpenSSL and could be exposed to a padding
    oracle attack. A remote attacker could possibly use this issue to decrypt
    data.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      libssl1.0.0                     1.0.2n-1ubuntu6.2
    
    Ubuntu 18.04 LTS:
      libssl1.0.0                     1.0.2n-1ubuntu5.3
    
    Ubuntu 16.04 LTS:
      libssl1.0.0                     1.0.2g-1ubuntu4.15
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3899-1
      CVE-2019-1559
    
    Package Information:
      https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu6.2
      https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu5.3
      https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.15
    
    
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