USN-4383-1: Firefox vulnerabilities

Published Jun 4, 2020
·
Updated

Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, spoof the addressbar, or execute arbitrary code. (CVE-2020-12405, CVE-2020-12406, CVE-2020-12407, CVE-2020-12408, CVE-2020-12409, CVE-2020-12410, CVE-2020-12411) It was discovered that NSS showed timing differences when performing DSA signatures. An attacker could potentially exploit this to obtain private keys using a timing attack. (CVE-2020-12399)

Affected Software

8 affected componentsFixes available
All of the following
ubuntu/firefox<77.0.1+build1-0ubuntu0.20.04.1
77.0.1+build1-0ubuntu0.20.04.1
Ubuntu Ubuntu=20.04
All of the following
ubuntu/firefox<77.0.1+build1-0ubuntu0.19.10.1
77.0.1+build1-0ubuntu0.19.10.1
Ubuntu Ubuntu=19.10
All of the following
ubuntu/firefox<77.0.1+build1-0ubuntu0.18.04.1
77.0.1+build1-0ubuntu0.18.04.1
Ubuntu Ubuntu=18.04
All of the following
ubuntu/firefox<77.0.1+build1-0ubuntu0.16.04.1
77.0.1+build1-0ubuntu0.16.04.1
Ubuntu Ubuntu=16.04

Event History

Jun 4, 2020
Advisory Published
via Ubuntu·12:00 AM

Frequently Asked Questions

1

What are the vulnerabilities addressed by USN-4383-1?

The vulnerabilities addressed by USN-4383-1 include CVE-2020-12405, CVE-2020-12406, CVE-2020-12407, and more.

2

What can an attacker potentially do if these vulnerabilities are exploited?

If these vulnerabilities are exploited, an attacker can cause a denial of service, spoof the address bar, or execute arbitrary code.

3

How can these vulnerabilities be exploited?

These vulnerabilities can be exploited if a user is tricked into opening a specially crafted website.

4

What is the severity of the vulnerabilities in USN-4383-1?

The severity of the vulnerabilities in USN-4383-1 is not specified in the provided information.

5

How can I fix the vulnerabilities addressed by USN-4383-1?

To fix the vulnerabilities addressed by USN-4383-1, update Firefox to version 77.0.1+build1-0ubuntu0.20.04.1 for Ubuntu 20.04, 77.0.1+build1-0ubuntu0.19.10.1 for Ubuntu 19.10, 77.0.1+build1-0ubuntu0.18.04.1 for Ubuntu 18.04, or 77.0.1+build1-0ubuntu0.16.04.1 for Ubuntu 16.04.

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