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             AUSCERT External Security Bulletin Redistribution

                  USN-4150-1: Thunderbird vulnerabilities
                              9 October 2019


        AusCERT Security Bulletin Summary

Product:           Thunderbird
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                   Denial of Service               -- Remote/Unauthenticated      
                   Cross-site Scripting            -- Remote with User Interaction
                   Provide Misleading Information  -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-11752 CVE-2019-11746 CVE-2019-11744
                   CVE-2019-11743 CVE-2019-11742 CVE-2019-11740

Reference:         ASB-2019.0268

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

USN-4150-1: Thunderbird vulnerabilities
8 October 2019

thunderbird vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 19.04
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS


Several security issues were fixed in Thunderbird.

Software Description

  o thunderbird - Mozilla Open Source mail and newsgroup client


It was discovered that encrypted S/MIME parts in a multipart message can leak
plaintext contents when included in a HTML reply or forward in some
circumstances. If a user were tricked in to replying to or forwarding a
specially crafted message, an attacker could potentially exploit this to obtain
sensitive information. (CVE-2019-11739)

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 obtain sensitive information, conduct
cross-site scripting (XSS) attack, scause a denial of service, or execute
arbitrary code. (CVE-2019-11740, CVE-2019-11742, CVE-2019-11743,
CVE-2019-11744, CVE-2019-11746, CVE-2019-11752)

Update instructions

The problem can be corrected by updating your system to the following package

Ubuntu 19.04
    thunderbird - 1:60.9.0+build1-0ubuntu0.19.04.1
Ubuntu 18.04 LTS
    thunderbird - 1:60.9.0+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
    thunderbird - 1:60.9.0+build1-0ubuntu0.16.04.2

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

After a standard system update you need to restart Thunderbird to make all the
necessary changes.


  o CVE-2019-11739
  o CVE-2019-11740
  o CVE-2019-11742
  o CVE-2019-11743
  o CVE-2019-11744
  o CVE-2019-11746
  o CVE-2019-11752

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