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Ubuntu 20.04 LTS Advisory USN-4546-2: Firefox Minor Regressions

ubuntu
Calendar Grey October 16, 2020
Dist Ubuntu Esm H88
Tackling slight downgrades in Firefox following safety patches on Ubuntu platforms to facilitate prompt fixes.
USN-4546-1 caused some minor regressions in Firefox.

Summary

USN-4546-1 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-4546-1 fixed vulnerabilities in Firefox. The update introduced various

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 in to opening a specially crafted website, an attacker could

potentially exploit these to cause a denial of service, conduct cross-site

scripting (XSS) attacks, spoof the site displayed in the download dialog,

or execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service XSS firefox update instructions regressions ubuntu

Update Instructions

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

Ubuntu 20.04 LTS:
  firefox                         81.0.2+build1-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  firefox                         81.0.2+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         81.0.2+build1-0ubuntu0.16.04.1

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

References

https://ubuntu.com/security/notices/USN-4546-1

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1900032

Severity
important
Lowest
Low
Medium
High
Critical

October 15, 2020

Topics%20covered

Topics Covered

security advisory denial of service XSS firefox update instructions regressions ubuntu

Package Information

https://launchpad.net/ubuntu/+source/firefox/81.0.2+build1-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/81.0.2+build1-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/firefox/81.0.2+build1-0ubuntu0.16.04.1

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