USN-3897-1: Thunderbird vulnerabilities

26 February 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

A use-after-free was discovered in libical. If a user were tricked in to opening a specially crafted ICS calendar file, an attacker could potentially exploit this to cause a denial of service. (CVE-2016-5824)

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service, or execute arbitrary code. (CVE-2018-18356, CVE-2018-18500, CVE-2019-5785)

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, gain additional privileges by escaping the sandbox, or execute arbitrary code. (CVE-2018-18501, CVE-2018-18505)

An issue was discovered with S/MIME signature verification in some circumstances. An attacker could potentially exploit this by spoofing signatures for arbitrary content. (CVE-2018-18509)

Update instructions

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

Ubuntu 18.10
thunderbird - 1:60.5.1+build2-0ubuntu0.18.10.1
Ubuntu 18.04 LTS
thunderbird - 1:60.5.1+build2-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
thunderbird - 1:60.5.1+build2-0ubuntu0.16.04.1
Ubuntu 14.04 LTS
thunderbird - 1:60.5.1+build2-0ubuntu0.14.04.1

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.

References