#VU54906 Type Confusion


Published: 2021-07-15

Vulnerability identifier: #VU54906

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-2021-30563

CWE-ID: CWE-843

Exploitation vector: Network

Exploit availability: No

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

Vendor: Google, Inc.

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error within the V8 component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

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

Mitigation
Update to version 91.0.4472.164.

Vulnerable software versions

Google Chromium: 91.0.4472.0, 91.0.4472.1, 91.0.4472.2, 91.0.4472.3, 91.0.4472.4, 91.0.4472.5, 91.0.4472.6, 91.0.4472.7, 91.0.4472.8, 91.0.4472.9, 91.0.4472.10, 91.0.4472.11, 91.0.4472.12, 91.0.4472.13, 91.0.4472.14, 91.0.4472.15, 91.0.4472.16, 91.0.4472.17, 91.0.4472.18, 91.0.4472.19, 91.0.4472.20, 91.0.4472.21, 91.0.4472.22, 91.0.4472.23, 91.0.4472.24, 91.0.4472.25, 91.0.4472.26, 91.0.4472.27, 91.0.4472.28, 91.0.4472.29, 91.0.4472.30, 91.0.4472.31, 91.0.4472.32, 91.0.4472.33, 91.0.4472.34, 91.0.4472.35, 91.0.4472.37, 91.0.4472.38, 91.0.4472.46, 91.0.4472.47, 91.0.4472.48, 91.0.4472.49, 91.0.4472.50, 91.0.4472.51, 91.0.4472.52, 91.0.4472.53, 91.0.4472.54, 91.0.4472.56, 91.0.4472.57, 91.0.4472.60, 91.0.4472.61, 91.0.4472.62, 91.0.4472.63, 91.0.4472.64, 91.0.4472.65, 91.0.4472.66, 91.0.4472.67, 91.0.4472.68, 91.0.4472.69, 91.0.4472.70, 91.0.4472.71, 91.0.4472.72, 91.0.4472.77, 91.0.4472.101

CPE

External links
https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
https://crbug.com/1228407


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.


Latest bulletins with this vulnerability