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Ubuntu Security Notice USN-6610-2
February 07, 2024

firefox regressions
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS

Summary:

USN-6610-1 caused some minor regressions in Firefox.

Software Description:
- firefox: Mozilla Open Source web browser

Details:

USN-6610-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.

Original advisory details:

 Multiple security issues were discovered in Firefox. If a user were
 tricked into opening a specially crafted website, an attacker could
 potentially exploit these to cause a denial of service, obtain sensitive
 information across domains, or execute arbitrary code. (CVE-2024-0741,
 CVE-2024-0742, CVE-2024-0743, CVE-2024-0744, CVE-2024-0745, CVE-2024-0747,
 CVE-2024-0748, CVE-2024-0749, CVE-2024-0750, CVE-2024-0751, CVE-2024-0753,
 CVE-2024-0754, CVE-2024-0755)
 
 Cornel Ionce discovered that Firefox did not properly manage memory when
 opening the print preview dialog. An attacker could potentially exploit
 this issue to cause a denial of service. (CVE-2024-0746)

Update instructions:

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

Ubuntu 20.04 LTS:
  firefox                         122.0.1+build1-0ubuntu0.20.04.1

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

References:
  https://ubuntu.com/security/notices/USN-6610-2
  https://ubuntu.com/security/notices/USN-6610-1
  https://launchpad.net/bugs/2052580

Package Information:
  https://launchpad.net/ubuntu/+source/firefox/122.0.1+build1-0ubuntu0.20.04.1