Executive Summary

Title Firefox vulnerability
Name USN-4140-1 First vendor Publication 2019-09-25
Vendor Ubuntu Last vendor Modification 2019-09-25
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores


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

- Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS


Firefox could be made to hijack the mouse pointer it if opened a malicious website.

Software Description: - firefox: Mozilla Open Source web browser


It was discovered that no user notification was given when pointer lock is enabled. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to hijack the mouse pointer and confuse users.

Update instructions:

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

Ubuntu 19.04:
firefox 69.0.1+build1-0ubuntu0.19.04.1

Ubuntu 18.04 LTS:
firefox 69.0.1+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
firefox 69.0.1+build1-0ubuntu0.16.04.1

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


Package Information:




Original Source

Url : http://www.ubuntu.com/usn/USN-4140-1

Alert History

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Date Informations
2019-09-26 05:19:06
  • First insertion