USN-5435-1: Thunderbird vulnerabilities

Publication date

25 May 2022

Overview

Several security issues were fixed in Thunderbird.


Packages

  • thunderbird - Mozilla Open Source mail and newsgroup client

Details

Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
bypass permission prompts, obtain sensitive information, bypass security
restrictions, cause user confusion, or execute arbitrary code.
(CVE-2022-29909, CVE-2022-29911, CVE-2022-29912, CVE-2022-29913,
CVE-2022-29914, CVE-2022-29916, CVE-2022-29917)

It was discovered that Thunderbird would show the wrong security status
after viewing an attached message that is signed or encrypted. An attacker
could potentially exploit this by tricking the user into trusting...

Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
bypass permission prompts, obtain sensitive information, bypass security
restrictions, cause user confusion, or execute arbitrary code.
(CVE-2022-29909, CVE-2022-29911, CVE-2022-29912, CVE-2022-29913,
CVE-2022-29914, CVE-2022-29916, CVE-2022-29917)

It was discovered that Thunderbird would show the wrong security status
after viewing an attached message that is signed or encrypted. An attacker
could potentially exploit this by tricking the user into trusting the
authenticity of a message. (CVE-2022-1520)

It was discovered that the methods of an Array object could be corrupted
as a result of prototype pollution by sending a message to the parent
process. If a user were tricked into opening a specially crafted website
in a browsing context, an attacker could exploit this to execute
JavaScript in a privileged context. (CVE-2022-1529, CVE-2022-1802)


Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.04 jammy thunderbird –  1:91.9.1+build1-0ubuntu0.22.04.1
21.10 impish thunderbird –  1:91.9.1+build1-0ubuntu0.21.10.1
20.04 focal thunderbird –  1:91.9.1+build1-0ubuntu0.20.04.1
18.04 bionic thunderbird –  1:91.9.1+build1-0ubuntu0.18.04.1

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

Talk to a member of the team ›