USN-3868-1: Thunderbird vulnerabilities

24 January 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


Several security issues were fixed in Thunderbird.

Software Description

  • thunderbird - Mozilla Open Source mail and newsgroup client


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, bypass same-origin restrictions, or execute arbitrary code.

Update instructions

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

Ubuntu 18.10
thunderbird - 1:60.4.0+build2-0ubuntu0.18.10.1
Ubuntu 18.04 LTS
thunderbird - 1:60.4.0+build2-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
thunderbird - 1:60.4.0+build2-0ubuntu0.16.04.1
Ubuntu 14.04 LTS
thunderbird - 1:60.4.0+build2-0ubuntu0.14.04.1

To update your system, please follow these instructions:

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