Ubuntu 21.10 USN-5345-1 Moderate: Thunderbird Security Issues

ubuntu

March 23, 2022

Several security issues were fixed in Thunderbird.

Summary

Several security issues were fixed in Thunderbird.

Software Description:

- 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 security restrictions, obtain sensitive information, cause

undefined behaviour, spoof the browser UI, or execute arbitrary code.

(CVE-2022-22759, CVE-2022-22760, CVE-2022-22761, CVE-2022-22763,

CVE-2022-22764, CVE-2022-26381, CVE-2022-26383, CVE-2022-26384)

It was discovered that extensions of a particular type could auto-update

themselves and bypass the prompt that requests permissions. If a user

were tricked into installing a specially crafted extension, an attacker

could potentially exploit this to bypass security restrictions.

(CVE-2022-22754)

It was discovered that dragging and dropping an...

Read the Full Advisory

Topics Covered

security advisory denial of service security issue access control medium severity ubuntu thunderbird

Update Instructions

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

Ubuntu 21.10:
  thunderbird                     1:91.7.0+build2-0ubuntu0.21.10.1

Ubuntu 20.04 LTS:
  thunderbird                     1:91.7.0+build2-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  thunderbird                     1:91.7.0+build2-0ubuntu0.18.04.1

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