Ubuntu 18.04 LTS: USN-3991-2 Critical: Firefox Regression Fix

ubuntu

June 6, 2019

USN-3991-1 caused a regression in Firefox.

Summary

USN-3991-1 caused a regression in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-3991-1 fixed vulnerabilities in Firefox. The update caused a

regression which resulted in issues when upgrading between Ubuntu

releases. 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, spoof the browser

UI, trick the user in to launching local executable binaries, obtain

sensitive information, conduct cross-site scripting (XSS) attacks, or

execute arbitrary code. (CVE-2019-11691, CVE-2019-11692, CVE-2019-11693,

CVE-2019-11695, CVE-2019-11696, CVE-2019-11699, CVE-2019-11701,

CVE-2019-7317, CVE-2019-9800, CVE-2019-9814, CVE-2019-9817, CVE-2019-9819,

CVE-2019-9820, CVE-2019-9821)

...

Read the Full Advisory

Topics Covered

security advisory security fix Ubuntu issue firefox regression

Update Instructions

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

Ubuntu 19.04:
  firefox                         67.0.1+build1-0ubuntu0.19.04.1

Ubuntu 18.10:
  firefox                         67.0.1+build1-0ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  firefox                         67.0.1+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         67.0.1+build1-0ubuntu0.16.04.1

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