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From: Chris Coulson
Reply-To: Ubuntu Security
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <54d589e0-5cce-09f5-53a3-178cd46a0574@canonical.com>
Subject: [USN-4687-1] Firefox vulnerability
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==========================================================================
Ubuntu Security Notice USN-4687-1
January 08, 2021
firefox vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- 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:
A use-after-free was discovered in Firefox when handling SCTP packets.
An attacker could potentially exploit this 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 20.10:
firefox 84.0.2+build1-0ubuntu0.20.10.1
Ubuntu 20.04 LTS:
firefox 84.0.2+build1-0ubuntu0.20.04.1
Ubuntu 18.04 LTS:
firefox 84.0.2+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS:
firefox 84.0.2+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/4687-1
CVE-2020-16044
Package Information:
https://launchpad.net/ubuntu/+source/firefox/84.0.2+build1-0ubuntu0.20.10.1
https://launchpad.net/ubuntu/+source/firefox/84.0.2+build1-0ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/firefox/84.0.2+build1-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/firefox/84.0.2+build1-0ubuntu0.16.04.1
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