Ubuntu 4165-1 Moderate: Firefox Malicious Website Threat

ubuntu

October 23, 2019

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

Summary

Firefox could be made to crash or run programs as your login if it

opened a malicious website.

Software Description:

- firefox: Mozilla Open Source web browser

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 security

restrictions, bypass same-origin restrictions, conduct cross-site

scripting (XSS) attacks, bypass content security policy (CSP)

protections, or execute arbitrary code.

Topics Covered

security advisory denial of service XSS Ubuntu firefox arbitrary code web browser

Update Instructions

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

Ubuntu 19.10:
  firefox                         70.0+build2-0ubuntu0.19.10.1

Ubuntu 19.04:
  firefox                         70.0+build2-0ubuntu0.19.04.1

Ubuntu 18.04 LTS:
  firefox                         70.0+build2-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         70.0+build2-0ubuntu0.16.04.1

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