PT-2021-4522 · Google+3 · Google Chrome+3

David Erceg · Published 2021-05-23 · Updated 2024-06-15 · CVE-2021-30550

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 91.0.4472.101

Description The issue is related to a use after free in the Accessibility component of Google Chrome, which can be exploited by an attacker who convinces a user to install a malicious extension. This can potentially lead to heap corruption via a crafted HTML page, allowing the attacker to access confidential data, compromise data integrity, and cause a denial of service.

Recommendations For Google Chrome versions prior to 91.0.4472.101, update to version 91.0.4472.101 or later to resolve the issue. As a temporary workaround, consider disabling the Accessibility component until a patch is available. Restrict access to crafted HTML pages to minimize the risk of exploitation. Avoid installing malicious extensions to prevent potential attacks.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2021-1974

ALT-PU-2021-2007

ALT-PU-2021-2068

ALT-PU-2021-2097

ALT-PU-2021-2141

BDU:2021-05164

CVE-2021-30550

OPENSUSE-SU-2021:0881-1

OPENSUSE-SU-2021:0938-1

OPENSUSE-SU-2021:0948-1

OPENSUSE-SU-2021:0949-1

OPENSUSE-SU-2021_0881-1

OPENSUSE-SU-2021_0948-1

OPENSUSE-SU-2021_0949-1

OPENSUSE-SU-2022:0110-1

OPENSUSE-SU-2022_0110-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2362

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_cve_2021_21220_v8_insufficient_validation.rb · Exploit
• 🔥 https://github.com/Phuong39/PoC-CVE-2021-30632 · Exploit
• 🔥 https://github.com/ZeusBox/CVE-2021-37980 · Exploit
• 🔥 https://github.com/SpiralBL0CK/Chrome-V8-RCE-CVE-2021-38003 · Exploit
• 🔥 https://github.com/CrackerCat/CVE-2021-30632 · Exploit
• 🔥 https://github.com/Peterpan0927/TFC-Chrome-v8-bug-CVE-2021-38001-poc · Exploit
• 🔥 https://github.com/xmzyshypnc/CVE-2021-30551 · Exploit
• 🔥 https://github.com/security-dbg/CVE-2021-21220 · Exploit
• 🔥 https://github.com/maldiohead/TFC-Chrome-v8-bug-CVE-2021-38001-poc · Exploit
• 🔥❌ https://github.com/ohnonoyesyes/CVE-2021-21224 · Exploit, Deleted
• 🔥❌ https://github.com/Lagal1990/CVE-2021-30632 · Exploit, Deleted
• 🔥❌ https://github.com/Expdev893/CVE-2021-30632 · Exploit, Deleted
• https://cve.org/CVERecord?id=CVE-2021-30550 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:12948-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30550 · Vendor Advisory