Ubuntu 20.04 LTS: USN-4474-2 Moderate: Firefox Regressions Fixed

ubuntu

September 3, 2020

USN-4474-1 caused some minor regressions in Firefox.

Summary

USN-4474-1 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-4474-1 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, trick the user

in to installing a malicious extension, spoof the URL bar, leak sensitive

information between origins, or execute arbitrary code. (CVE-2020-15664,

CVE-2020-15665, CVE-2020-15666, CVE-2020-15670)

It was discovered that NSS incorrectly handled certain signatures.

An attacker could possibly use this issue to expose sensitive information.

(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)

A data race was discovered when importing cert...

Read the Full Advisory

Topics Covered

security advisory denial of service security issue firefox ubuntu regression

Update Instructions

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

Ubuntu 20.04 LTS:
  firefox                         80.0.1+build1-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  firefox                         80.0.1+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         80.0.1+build1-0ubuntu0.16.04.1

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