Ubuntu alert USN-4317-1 (firefox)

From:
             
 
Chris Coulson <chris.coulson@canonical.com> 
To:
             
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
             
 
[USN-4317-1] Firefox vulnerabilities 
Date:
             
 
Sat, 4 Apr 2020 13:33:05 +0100
Message-ID:
             
 
<d3cebca7-4c81-1da5-a0cb-ee16b24bcdbf@canonical.com>
==========================================================================
Ubuntu Security Notice USN-4317-1
April 04, 2020

firefox vulnerabilities
==========================================================================

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

- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

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:

Two use-after-free bugs were discovered in Firefox. If a user were tricked
in to opening a specially crafted website, an attacker could exploit these
to cause a denial of service or execute arbitrary code.

Update instructions:

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

Ubuntu 19.10:
  firefox                         74.0.1+build1-0ubuntu0.19.10.1

Ubuntu 18.04 LTS:
  firefox                         74.0.1+build1-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  firefox                         74.0.1+build1-0ubuntu0.16.04.1

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

References:
  https://usn.ubuntu.com/4317-1
  CVE-2020-6819, CVE-2020-6820

Package Information:

https://launchpad.net/ubuntu/+source/firefox/74.0.1+build...

https://launchpad.net/ubuntu/+source/firefox/74.0.1+build...

https://launchpad.net/ubuntu/+source/firefox/74.0.1+build...

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