Use-after-free in Mozilla Firefox - CVE-2020-12416
Published: July 2, 2020 / Updated: July 31, 2020
Vulnerability identifier: #VU29458
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-12416
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in WebRTC VideoBroadcaster. A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink, resulting in a use-after-free.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
How to mitigate CVE-2020-12416
Install updates from vendor's website.