PT-2021-3526 · Google+3 · Google Chrome+3

David Erceg · Published 2021-06-01 · Updated 2024-06-15 · CVE-2021-30555

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 91.0.4472.114

Description The issue is related to a use after free in the Sharing component of Google Chrome, which could potentially allow an attacker to exploit heap corruption. This could happen if an attacker convinces a user to install a malicious extension and the user interacts with a crafted HTML page. The exploitation may result in a denial of service.

Recommendations For versions prior to 91.0.4472.114, update to version 91.0.4472.114 or later to resolve the issue. As a temporary workaround, consider disabling the Sharing extension until a patch is available. Restrict access to crafted HTML pages to minimize the risk of exploitation. Avoid using the Sharing feature in Google Chrome until the issue is resolved.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2021-2063

ALT-PU-2021-2068

ALT-PU-2021-2097

ALT-PU-2021-2118

ALT-PU-2021-2141

BDU:2021-03576

CVE-2021-30555

OPENSUSE-SU-2021:0898-1

OPENSUSE-SU-2021:0938-1

OPENSUSE-SU-2021:0948-1

OPENSUSE-SU-2021:0949-1

OPENSUSE-SU-2021_0898-1

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 · 2366

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_cve_2021_21220_v8_insufficient_validation.rb · Exploit
• 🔥 https://github.com/ZeusBox/CVE-2021-37980 · Exploit
• 🔥 https://github.com/Phuong39/PoC-CVE-2021-30632 · 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/Expdev893/CVE-2021-30632 · Exploit, Deleted
• 🔥❌ https://github.com/Lagal1990/CVE-2021-30632 · Exploit, Deleted
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-30555 · Vendor Advisory
• https://security.gentoo.org/glsa/202107-06 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory