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Ubuntu Security Notice USN-6903-1
July 22, 2024

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 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-2024-6600, CVE-2024-6601,
CVE-2024-6604)

Ronald Crane discovered that Thunderbird did not properly manage certain
memory operations in the NSS. An attacker could potentially exploit this
issue to cause a denial of service. (CVE-2024-6602)

Irvan Kurniawan discovered that Thunderbird did not properly manage memory
during thread creation. An attacker could potentially exploit this
issue to cause a denial of service, or execute arbitrary code. 
(CVE-2024-6603)

Update instructions:

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

Ubuntu 22.04 LTS
  thunderbird                     1:115.13.0+build5-0ubuntu0.22.04.1

Ubuntu 20.04 LTS
  thunderbird                     1:115.13.0+build5-0ubuntu0.20.04.1

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

References:
  https://ubuntu.com/security/notices/USN-6903-1
  CVE-2024-6600, CVE-2024-6601, CVE-2024-6602, CVE-2024-6603,
  CVE-2024-6604

Package Information:
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.13.0+build5-0ubuntu0.22.04.1
  https://launchpad.net/ubuntu/+source/thunderbird/1:115.13.0+build5-0ubuntu0.20.04.1