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Ubuntu 20.04 LTS USN-6562-2 moderate: Firefox regression doS threat

ubuntu
Calendar Grey January 11, 2024
Dist Ubuntu Esm H88
Minor downgrade problems in Firefox have been addressed with Ubuntu Security Notification USN-6573-1. Updates are ready for resolution.
USN-6562-1 caused some minor regressions in Firefox.

Summary

USN-6562-1 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-6562-1 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-2023-6865,

CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,

CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,

CVE-2023-6864, CVE-2023-6873)

DoHyun Lee discovered that Firefox did not properly manage memory when used

on systems with the Mesa VM driver. An attacker could potentially exploit

this issue to execute arbitra...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory software update Ubuntu Firefox regression fix doS threat

Update Instructions

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

Ubuntu 20.04 LTS:
  firefox                         121.0.1+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-6562-2

https://ubuntu.com/security/notices/USN-6562-1

Ubuntu Security Notice USN-6562-2

Topics%20covered

Topics Covered

security advisory software update Ubuntu Firefox regression fix doS threat

Package Information

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