CVE-2015-4478 Security feature bypass in n/a

Medium 5.0 Published Updated

Remote attackers can bypass the Same Origin Policy in Firefox via JSON.parse reviver, requiring user interaction to visit a malicious site.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2015-4478?

CVE-2015-4478 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 16 Aug 2015. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 do not impose certain ECMAScript 6 requirements on JavaScript object properties, which allows remote attackers to bypass the Same Origin Policy via the reviver parameter to the JSON.parse method.

Weakness: CWE-200

Which versions are affected by CVE-2015-4478?

It affects 3 products.

Products include Canonical Ubuntu Linux, Mozilla Firefox, Opensuse Opensuse.

How do I fix CVE-2015-4478?

Upgrade to a fixed version.

Is CVE-2015-4478 being exploited?

There is no known exploitation of CVE-2015-4478 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-m7fr-3m5q-g72f, UBUNTU-CVE-2015-4478.

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