Vulnerability identifier: #VU51166

Vulnerability risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-21166

CWE-ID: N/A

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Google Chrome
Client/Desktop applications / Web browsers

Vendor: Google

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper control of object lifetime in audio in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation
Update to version 89.0.4389.72.

Vulnerable software versions

Google Chrome: 86.0.4240.198 - 88.0.4324.190

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External links
http://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html
http://crbug.com/1177465

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.