Ubuntu 3675-1: GnuPG vulnerabilities

    Date11 Jun 2018
    CategoryUbuntu
    1100
    Posted ByAnthony Pell
    Several security issues were fixed in GnuPG.
    ==========================================================================
    Ubuntu Security Notice USN-3675-1
    June 11, 2018
    
    gnupg, gnupg2 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.04 LTS
    - Ubuntu 17.10
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in GnuPG.
    
    Software Description:
    - gnupg2: GNU privacy guard - a free PGP replacement
    - gnupg: GNU privacy guard - a free PGP replacement
    
    Details:
    
    Marcus Brinkmann discovered that during decryption or verification,
    GnuPG did not properly filter out terminal sequences when reporting the
    original filename. An attacker could use this to specially craft a file
    that would cause an application parsing GnuPG output to incorrectly
    interpret the status of the cryptographic operation reported by GnuPG.
    (CVE-2018-12020)
    
    Lance Vick discovered that GnuPG did not enforce configurations where
    key certification required an offline master Certify key. An attacker
    with access to a signing subkey could generate certifications that
    appeared to be valid. This issue only affected Ubuntu 18.04 LTS.
    (CVE-2018-9234)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.04 LTS:
      gnupg                           2.2.4-1ubuntu1.1
      gpg                             2.2.4-1ubuntu1.1
    
    Ubuntu 17.10:
      gnupg                           2.1.15-1ubuntu8.1
    
    Ubuntu 16.04 LTS:
      gnupg                           1.4.20-1ubuntu3.2
    
    Ubuntu 14.04 LTS:
      gnupg                           1.4.16-1ubuntu2.5
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3675-1
      CVE-2018-12020, CVE-2018-9234
    
    Package Information:
      https://launchpad.net/ubuntu/+source/gnupg2/2.2.4-1ubuntu1.1
      https://launchpad.net/ubuntu/+source/gnupg2/2.1.15-1ubuntu8.1
      https://launchpad.net/ubuntu/+source/gnupg/1.4.20-1ubuntu3.2
      https://launchpad.net/ubuntu/+source/gnupg/1.4.16-1ubuntu2.5
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"25","type":"x","order":"1","pct":55.56,"resources":[]},{"id":"88","title":"Should be more technical","votes":"5","type":"x","order":"2","pct":11.11,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"15","type":"x","order":"3","pct":33.33,"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
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.