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Ubuntu USN-5709-2: Critical Security Issues Found in Firefox

ubuntu
Calendar Grey November 10, 2022
Dist Ubuntu Esm H88
Ubuntu 20.04 and 18.04 LTS users are advised to upgrade Firefox due to several security flaws and small bugs. Update is now accessible!
USN-5709-1 introduced minor regressions in Firefox

Summary

USN-5709-1 introduced minor regressions in Firefox

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-5709-1 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-2022-42927,

CVE-2022-42928, CVE-2022-42929, CVE-2022-42930, CVE-2022-42932)

It was discovered that Firefox saved usernames to a plaintext file. A

local user could potentially exploit this to obtain sensitive information.

(CVE-2022-42931)

Topics%20covered

Topics Covered

security advisory denial of service critical issue code execution Ubuntu information disclosure Firefox

Update Instructions

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

Ubuntu 20.04 LTS:
  firefox                         106.0.5+build1-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  firefox                         106.0.5+build1-0ubuntu0.18.04.1

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

References

https://ubuntu.com/security/notices/USN-5709-2

https://ubuntu.com/security/notices/USN-5709-1

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1996178

Severity
critical
Lowest
Low
Medium
High
Critical

November 10, 2022

Topics%20covered

Topics Covered

security advisory denial of service critical issue code execution Ubuntu information disclosure Firefox

Package Information

https://launchpad.net/ubuntu/+source/firefox/106.0.5+build1-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/106.0.5+build1-0ubuntu0.18.04.1

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