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    Ubuntu 4353-1: Firefox vulnerabilities

    Date
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    Posted By
    Firefox could be made to crash or run programs as your login if it opened a malicious website.
    ==========================================================================
    Ubuntu Security Notice USN-4353-1
    May 07, 2020
    
    firefox vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.04 LTS
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Firefox could be made to crash or run programs as your login if it
    opened a malicious website.
    
    Software Description:
    - firefox: Mozilla Open Source web browser
    
    Details:
    
    Multiple security issues were discovered in Firefox. If a user were
    tricked in to opening a specially crafted website, an attacker could
    potentially exploit these to cause a denial of service, bypass security
    restrictions, spoof the URL bar, or execute arbitrary code.
    (CVE-2020-6831, CVE-2020-12387, CVE-2020-12390, CVE-2020-12391,
    CVE-2020-12394, CVE-2020-12395, CVE-2020-12396)
    
    It was discovered that the Devtools’ ‘Copy as cURL’ feature did not
    properly HTTP POST data of a request. If a user were tricked in to using
    the ‘Copy as cURL’ feature to copy and paste a command with specially
    crafted data in to a terminal, an attacker could potentially exploit this
    to obtain sensitive information from local files.
    (CVE-2020-12392)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.04 LTS:
      firefox                         76.0+build2-0ubuntu0.20.04.1
    
    Ubuntu 19.10:
      firefox                         76.0+build2-0ubuntu0.19.10.1
    
    Ubuntu 18.04 LTS:
      firefox                         76.0+build2-0ubuntu0.18.04.1
    
    Ubuntu 16.04 LTS:
      firefox                         76.0+build2-0ubuntu0.16.04.1
    
    After a standard system update you need to restart Firefox to make
    all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4353-1
      CVE-2020-12387, CVE-2020-12390, CVE-2020-12391, CVE-2020-12392,
      CVE-2020-12394, CVE-2020-12395, CVE-2020-12396, CVE-2020-6831
    
    Package Information:
      https://launchpad.net/ubuntu/+source/firefox/76.0+build2-0ubuntu0.20.04.1
      https://launchpad.net/ubuntu/+source/firefox/76.0+build2-0ubuntu0.19.10.1
      https://launchpad.net/ubuntu/+source/firefox/76.0+build2-0ubuntu0.18.04.1
      https://launchpad.net/ubuntu/+source/firefox/76.0+build2-0ubuntu0.16.04.1
    
    

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