Ubuntu 3927-1: Thunderbird vulnerabilities

    Date28 Mar 2019
    CategoryUbuntu
    2416
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Thunderbird.
    ==========================================================================
    Ubuntu Security Notice USN-3927-1
    March 28, 2019
    
    thunderbird vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in Thunderbird.
    
    Software Description:
    - thunderbird: Mozilla Open Source mail and newsgroup client
    
    Details:
    
    It was discovered that Thunderbird allowed PAC files to specify that
    requests to localhost are sent through the proxy to another server. If
    proxy auto-detection is enabled, an attacker could potentially exploit
    this to conduct attacks on local services and tools. (CVE-2018-18506)
    
    Multiple security issues were discovered in Thunderbird. If a user were
    tricked in to opening a specially crafted website in a browsing context,
    an attacker could potentially exploit these to cause a denial of service,
    or execute arbitrary code. (CVE-2019-9788, CVE-2019-9790, CVE-2019-9791,
    CVE-2019-9792, CVE-2019-9795, CVE-2019-9796, CVE-2019-9810, CVE-2019-9813)
    
    A mechanism was discovered that removes some bounds checking for string,
    array, or typed array accesses if Spectre mitigations have been disabled.
    If a user were tricked in to opening a specially crafted website in a
    browsing context with Spectre mitigations disabled, an attacker could
    potentially exploit this to cause a denial of service, or execute
    arbitrary code. (CVE-2019-9793)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      thunderbird                     1:60.6.1+build2-0ubuntu0.18.10.1
    
    Ubuntu 18.04 LTS:
      thunderbird                     1:60.6.1+build2-0ubuntu0.18.04.1
    
    Ubuntu 16.04 LTS:
      thunderbird                     1:60.6.1+build2-0ubuntu0.16.04.1
    
    Ubuntu 14.04 LTS:
      thunderbird                     1:60.6.1+build2-0ubuntu0.14.04.1
    
    After a standard system update you need to restart Thunderbird to make
    all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3927-1
      CVE-2018-18506, CVE-2019-9788, CVE-2019-9790, CVE-2019-9791,
      CVE-2019-9792, CVE-2019-9793, CVE-2019-9795, CVE-2019-9796,
      CVE-2019-9810, CVE-2019-9813
    
    Package Information:
     
    https://launchpad.net/ubuntu/+source/thunderbird/1:60.6.1+build2-0ubuntu0.18.10.1
     
    https://launchpad.net/ubuntu/+source/thunderbird/1:60.6.1+build2-0ubuntu0.18.04.1
     
    https://launchpad.net/ubuntu/+source/thunderbird/1:60.6.1+build2-0ubuntu0.16.04.1
     
    https://launchpad.net/ubuntu/+source/thunderbird/1:60.6.1+build2-0ubuntu0.14.04.1
    
    
    
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