USN-4317-1: Firefox vulnerabilities

Publication date

4 April 2020

Overview

Firefox could be made to crash or run programs as your login if it opened a malicious website.


Packages

  • firefox - Mozilla Open Source web browser

Details

Two use-after-free bugs were discovered in Firefox. If a user were tricked
in to opening a specially crafted website, an attacker could exploit these
to cause a denial of service or execute arbitrary code.

Two use-after-free bugs were discovered in Firefox. If a user were tricked
in to opening a specially crafted website, an attacker could exploit these
to cause a denial of service or execute arbitrary code.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
19.10 eoan firefox –  74.0.1+build1-0ubuntu0.19.10.1
18.04 bionic firefox –  74.0.1+build1-0ubuntu0.18.04.1
16.04 xenial firefox –  74.0.1+build1-0ubuntu0.16.04.1

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