#VU50755 Stack-based buffer overflow in Google Chrome - CVE-2021-21149

Vulnerability identifier: #VU50755

Vulnerability risk: High

CVSSv4.0: 6.1 [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-2021-21149

CWE-ID: CWE-121

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 a boundary error in Data Transfer 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.

Mitigation
Update to version 88.0.4324.182.

Vulnerable software versions

Google Chrome: 86.0.4240.183 - 88.0.4324.150

---

External links
http://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_16.html
http://crbug.com/1138143

---

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?

No. We are not aware of malware exploiting this vulnerability.