Related Vulnerabilities: CVE-2016-5258  

Use-after-free vulnerability in the WebRTC socket thread in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code by leveraging incorrect free operations on DTLS objects during the shutdown of a WebRTC session.

Severity Critical

Remote Yes

Type Arbitrary code execution

Description

Use-after-free vulnerability in the WebRTC socket thread in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code by leveraging incorrect free operations on DTLS objects during the shutdown of a WebRTC session.

AVG-935 firefox 47.0.1-1 48.0.1-1 Critical Fixed

https://www.mozilla.org/en-US/security/advisories/mfsa2016-72/