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Ubuntu Security Notice USN-7193-1
January 09, 2025

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Thunderbird could be made to bypass security restrictions.

Software Description:
- thunderbird: Mozilla Open Source mail and newsgroup client

Details:

Masato Kinugawa discovered that Thunderbird did not properly validate the
CSP policy in the Web Compatibility extension. An attacker could
potentially exploit this issue to perform a cross-site scripting attack.

Update instructions:

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

Ubuntu 22.04 LTS
  thunderbird                     1:115.18.0+build1-0ubuntu0.22.04.1

Ubuntu 20.04 LTS
  thunderbird                     1:115.18.0+build1-0ubuntu0.20.04.1

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-7193-1
  CVE-2024-11694

Package Information:
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.18.0+build1-0ubuntu0.22.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.18.0+build1-0ubuntu0.20.04.1