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Ubuntu 20.04 LTS USN-6747-2 Critical: Firefox Memory Management Issue

ubuntu
Calendar Grey May 2, 2024
Dist Ubuntu Esm H88
Addresses slight Firefox issues following USN-6747-1 on Ubuntu 20.04 LTS; discover the steps to enhance security with updates.
USN-6747-1 caused some minor regressions in Firefox.

Summary

USN-6747-1 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-6747-1 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-2024-3852,

CVE-2024-3864, CVE-2024-3865)

Bartek Nowotarski discovered that Firefox did not properly limit HTTP/2

CONTINUATION frames. An attacker could potentially exploit this issue to

cause a denial of service. (CVE-2024-3302)

Gary Kwong discovered that Firefox did not properly manage memory when

running garbage collection during realm initialization. An attacker could

potentially exploit this issu...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service software update Ubuntu memory issue Firefox

Update Instructions

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

Ubuntu 20.04 LTS
  firefox                         125.0.3+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-6747-2

https://ubuntu.com/security/notices/USN-6747-1

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6747-2

Topics%20covered

Topics Covered

security advisory denial of service software update Ubuntu memory issue Firefox

Package Information

https://launchpad.net/ubuntu/+source/firefox/125.0.3+build1-0ubuntu0.20.04.1

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