USN-4032-1: Firefox vulnerability

firefox vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 19.04
• Ubuntu 18.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

A sandbox escape was discovered in Firefox.

Software Description

• firefox - Mozilla Open Source web browser

Details

It was discovered that a sandboxed child process could open arbitrary web content in the parent process via the Prompt:Open IPC message. When combined with another vulnerability, an attacker could potentially exploit this to execute arbitrary code.

Update instructions

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

Ubuntu 19.04

firefox - 67.0.4+build1-0ubuntu0.19.04.1

Ubuntu 18.10

firefox - 67.0.4+build1-0ubuntu0.18.10.1

Ubuntu 18.04 LTS

firefox - 67.0.4+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS

firefox - 67.0.4+build1-0ubuntu0.16.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2019-11708

from Ubuntu Security Notices http://bit.ly/31UjcEK