cve/2016/CVE-2016-2821.md

### [CVE-2016-2821](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2821)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.

### POC

#### Reference
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1271460

#### Github
No PoCs found on GitHub currently.