First published: Sun Aug 16 2015(Updated: )
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.
Credit: security@mozilla.org security@mozilla.org
Affected Software | Affected Version | How to fix |
---|---|---|
Ubuntu | =12.04 | |
Ubuntu | =14.04 | |
Ubuntu | =15.04 | |
openSUSE | =13.1 | |
openSUSE | =13.2 | |
Firefox | <=39.0.3 | |
Firefox | =38.0 | |
Firefox | =38.0.1 | |
Firefox | =38.0.5 | |
Firefox | =38.1.0 | |
Firefox ESR | =38.0 | |
Firefox ESR | =38.0.1 | |
Firefox ESR | =38.0.5 | |
Firefox ESR | =38.1.0 |
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CVE-2015-4478 has a medium severity level due to its potential to bypass the Same Origin Policy.
To fix CVE-2015-4478, upgrade to Mozilla Firefox version 40.0 or later, or Firefox ESR 38.2 or later.
CVE-2015-4478 affects specific versions of Mozilla Firefox, Firefox ESR, Ubuntu 12.04, 14.04, 15.04, and openSUSE 13.1 and 13.2.
CVE-2015-4478 is a Cross-Origin Resource Sharing (CORS) vulnerability that allows unauthorized access to resources.
Attackers can exploit CVE-2015-4478 by using the reviver parameter in the JSON.parse method to bypass security restrictions.