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Ubuntu 20.04 LTS: 5816-2 Critical: Firefox Regression Fixes

ubuntu
Calendar Grey February 6, 2023
Dist Ubuntu Esm H88
System update for Linux addresses Firefox performance setbacks impacting Ubuntu 20.04 and 18.04, strengthening protective features.
USN-5816-1 caused some minor regressions in Firefox.

Summary

USN-5816-1 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-5816-1 fixed vulnerabilities in Firefox. The update introduced

several minor regressions. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Niklas Baumstark discovered that a compromised web child process of Firefox

could disable web security opening restrictions, leading to a new child

process being spawned within the file:// context. An attacker could

potentially exploits this to obtain sensitive information. (CVE-2023-23597)

Tom Schuster discovered that Firefox was not performing a validation check

on GTK drag data. An attacker could potentially exploits this to obtain

sensitive information. (CVE-2023-23598)

Vadim discovered that Firefox was not properly sanitizing a curl command

output when copying a network request from the developer tools panel. An

attacker c...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory update firefox web security information disclosure ubuntu regression

Update Instructions

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

Ubuntu 20.04 LTS:
  firefox                         109.0.1+build1-0ubuntu0.20.04.2

Ubuntu 18.04 LTS:
  firefox                         109.0.1+build1-0ubuntu0.18.04.2

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

References

https://ubuntu.com/security/notices/USN-5816-2

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2006075

Severity
critical
Lowest
Low
Medium
High
Critical

February 06, 2023

Topics%20covered

Topics Covered

security advisory update firefox web security information disclosure ubuntu regression

Package Information

https://launchpad.net/ubuntu/+source/firefox/109.0.1+build1-0ubuntu0.20.04.2
https://launchpad.net/ubuntu/+source/firefox/109.0.1+build1-0ubuntu0.18.04.2

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