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Ubuntu 20.04: USN-6267-3 – Severe Firefox Minor Regressions Resolved

ubuntu
Calendar Grey August 21, 2023
Dist Ubuntu Esm H88
The latest Ubuntu Security Notice USN-6267-4 addresses slight regressions in Firefox and provides fixes for users on 22.04 LTS.
USN-6267-2 caused some minor regressions in Firefox.

Summary

USN-6267-2 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-6267-1 fixed vulnerabilities and USN-6267-2 fixed minor regressions 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-2023-4047,

CVE-2023-4048, CVE-2023-4049, CVE-2023-4051, CVE-2023-4053, CVE-2023-4055,

CVE-2023-4056, CVE-2023-4057, CVE-2023-4058)

Max Vlasov discovered that Firefox Offscreen Canvas did not properly track

cross-origin tainting. An attacker could potentially exploit this issue to

access image data from another site in violation o...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service software fix firefox update instructions ubuntu minor regression

Update Instructions

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

Ubuntu 20.04 LTS:
  firefox                         116.0.3+build2-0ubuntu0.20.04.1

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

References

https://ubuntu.com/security/notices/USN-6267-3

https://ubuntu.com/security/notices/USN-6267-1

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2032143

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6267-3

Topics%20covered

Topics Covered

security advisory denial of service software fix firefox update instructions ubuntu minor regression

Package Information

https://launchpad.net/ubuntu/+source/firefox/116.0.3+build2-0ubuntu0.20.04.1

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