Ubuntu 18.10: USN-3801-3 Important: Firefox Functionality Problems

ubuntu

November 23, 2018

USN-3801-1 caused some minor regressions in Firefox.

Summary

USN-3801-1 caused some minor regressions in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-3801-1 fixed vulnerabilities in Firefox. The update introduced various

minor regressions. This update fixes the problems.

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, bypass CSP

restrictions, spoof the protocol registration notification bar, leak

SameSite cookies, bypass mixed content warnings, or execute arbitrary

code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393,

CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402,

CVE-2018-12403)

Multiple security issues were discovered with WebExtensions in Firefox.

If a user were tricked in to installing a specially crafted extension, ...

Read the Full Advisory

Topics Covered

security advisory moderate firefox update instructions web browser ubuntu regression

Update Instructions

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

Ubuntu 18.10:
  firefox                         63.0.3+build1-0ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  firefox                         63.0.3+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         63.0.3+build1-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  firefox                         63.0.3+build1-0ubuntu0.14.04.1

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