CVE-2016-9064 Security feature bypass in Firefox

Medium 5.9 Published Updated

Man-in-the-middle attackers can bypass add-on ID verification to install malicious signed add-ons, requiring certificate pinning defeat.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2016-9064?

CVE-2016-9064 is a medium-severity vulnerability in Mozilla Firefox, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Add-on updates failed to verify that the add-on ID inside the signed package matched the ID of the add-on being updated. An attacker who could perform a man-in-the-middle attack on the user's connection to the update server and defeat the certificate pinning protection could provide a malicious signed add-on instead of a valid update. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.

Weakness: CWE-295

Which versions are affected by CVE-2016-9064?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2016-9064?

Upgrade to a fixed version.

Is CVE-2016-9064 being exploited?

There is no known exploitation of CVE-2016-9064 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-9064, GHSA-pc4v-68rv-24q5, UBUNTU-CVE-2016-9064.

Is CVE-2016-9064 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free