Ubuntu 21.10: USN-5229-1 Critical: Firefox Denial of Service

ubuntu

January 13, 2022

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 into opening a specially crafted website, an attacker could

potentially exploit these to cause a denial of service, spoof the browser

UI, bypass security restrictions, obtain sensitive information across

domains, or execute arbitrary code.

Topics Covered

security advisory code execution doS firefox ubuntu

Update Instructions

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

Ubuntu 21.10:
  firefox                         96.0+build2-0ubuntu0.21.10.1

Ubuntu 21.04:
  firefox                         96.0+build2-0ubuntu0.21.04.1

Ubuntu 20.04 LTS:
  firefox                         96.0+build2-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  firefox                         96.0+build2-0ubuntu0.18.04.1

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