Ubuntu 4236-2: Libgcrypt vulnerability

    Date 14 Jan 2020
    363
    Posted By LinuxSecurity Advisories
    Libgcrypt could be made to expose sensitive information.
    ==========================================================================
    Ubuntu Security Notice USN-4236-2
    January 14, 2020
    
    libgcrypt20 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Libgcrypt could be made to expose sensitive information.
    
    Software Description:
    - libgcrypt20: LGPL Crypto library
    
    Details:
    
    USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides the
    corresponding fix for Ubuntu 16.04 LTS.
    
    Original advisory details:
    
     It was discovered that Libgcrypt was susceptible to a ECDSA timing attack.
     An attacker could possibly use this attack to recover sensitive
     information.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libgcrypt20                     1.6.5-2ubuntu0.6
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4236-2
      https://usn.ubuntu.com/4236-1
      CVE-2019-13627
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libgcrypt20/1.6.5-2ubuntu0.6
    
    

    LinuxSecurity Poll

    If you are using full-disk encryption: are you concerned about the resulting performance hit?

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    /main-polls/34-if-you-are-using-full-disk-encryption-are-you-concerned-about-the-resulting-performance-hit?task=poll.vote&format=json
    34
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    [{"id":"120","title":"Yes","votes":"13","type":"x","order":"1","pct":65,"resources":[]},{"id":"121","title":"No ","votes":"7","type":"x","order":"2","pct":35,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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