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Ubuntu 20.04 LTS USN-6510-1 critical: Firefox regression fixes

ubuntu
Calendar Grey December 4, 2023
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-6509-2 warns of vulnerabilities in Firefox that may compromise security. Users should promptly update Firefox to safeguard against threats.
USN-6509-1 caused some minor regressions in Firefox.

Summary

USN-6509-1 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-6509-1 fixed vulnerabilities in Firefox. The update introduced

several minor regressions. This update fixes the problem.

We apologize for the inconvenience.

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-2023-6206,

CVE-2023-6210, CVE-2023-6211, CVE-2023-6212, CVE-2023-6213)

It was discovered that Firefox did not properly manage memory when

images were created on the canvas element. An attacker could potentially

exploit this issue to obtain sensitive information. (CVE-2023-6204)

It discovered that Firefox incorrectly handled certain memory when using a

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu security patch Firefox regression

Update Instructions

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

Ubuntu 20.04 LTS:
   firefox                         120.0.1+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-6509-2

https://ubuntu.com/security/notices/USN-6509-1

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2045518

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6509-2

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu security patch Firefox regression

Package Information

https://launchpad.net/ubuntu/+source/firefox/120.0.1+build1-0ubuntu0.20.04.1

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