=========================================================================Ubuntu Security Notice USN-6075-1
May 15, 2023

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

- Ubuntu 23.04
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

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,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code. (CVE-2023-32205, CVE-2023-32207,
CVE-2023-32211, CVE-2023-32212, CVE-2023-32213, CVE-2023-32215)

Irvan Kurniawan discovered that Thunderbird did not properly manage memory
when using RLBox Expat driver. An attacker could potentially exploits this
issue to cause a denial of service. (CVE-2023-32206)

Update instructions:

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

Ubuntu 23.04:
  thunderbird                     1:102.11.0+build1-0ubuntu0.23.04.1

Ubuntu 22.10:
  thunderbird                     1:102.11.0+build1-0ubuntu0.22.10.1

Ubuntu 22.04 LTS:
  thunderbird                     1:102.11.0+build1-0ubuntu0.22.04.1

Ubuntu 20.04 LTS:
  thunderbird                     1:102.11.0+build1-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  thunderbird                     1:102.11.0+build1-0ubuntu0.18.04.1

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

References:
  https://ubuntu.com/security/notices/USN-6075-1
  CVE-2023-32205, CVE-2023-32206, CVE-2023-32207, CVE-2023-32211,
  CVE-2023-32212, CVE-2023-32213, CVE-2023-32215

Package Information:
  https://launchpad.net/ubuntu/+source/thunderbird/1:102.11.0+build1-0ubuntu0.23.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:102.11.0+build1-0ubuntu0.22.10.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:102.11.0+build1-0ubuntu0.22.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:102.11.0+build1-0ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:102.11.0+build1-0ubuntu0.18.04.1