1. Ubuntu Security Notices
  2. USN-4032-1

USN-4032-1: Firefox vulnerability

Publication date

24 June 2019

Overview

A sandbox escape was discovered in Firefox.

Releases

Packages

  • 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.

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

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
19.04 disco firefox –  67.0.4+build1-0ubuntu0.19.04.1
18.10 cosmic firefox –  67.0.4+build1-0ubuntu0.18.10.1
18.04 bionic firefox –  67.0.4+build1-0ubuntu0.18.04.1
16.04 xenial firefox –  67.0.4+build1-0ubuntu0.16.04.1

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References

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