Ubuntu 20.10 USN-4717-2 Critical: Firefox Memory Corruption

ubuntu

February 1, 2021

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, obtain sensitive

information, conduct clickjacking attacks, or execute arbitrary code.

Topics Covered

security advisory denial of service critical software update memory corruption firefox ubuntu

Update Instructions

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

Ubuntu 20.10:
  firefox                         85.0+build1-0ubuntu0.20.10.1

Ubuntu 20.04 LTS:
  firefox                         85.0+build1-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  firefox                         85.0+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         85.0+build1-0ubuntu0.16.04.1

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