PT-2021-5626 · Google+3 · V8 Javascript Engine+4

Published 2021-10-19 · Updated 2024-06-15 · CVE-2021-37985

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 95.0.4638.54

Description The issue is related to a use after free in the V8 JavaScript engine, which can lead to heap corruption. This can be exploited by a remote attacker who has convinced a user to allow a connection to the debugger, potentially allowing the execution of arbitrary code via a crafted HTML page.

Recommendations For versions prior to 95.0.4638.54, update to version 95.0.4638.54 or later to resolve the issue. As a temporary workaround, consider restricting access to the debugger to minimize the risk of exploitation. Avoid using the vulnerable V8 JavaScript engine until the issue is resolved.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2021-3095

ALT-PU-2021-3329

ALT-PU-2021-3408

ALT-PU-2021-3431

ALT-PU-2021-3436

ALT-PU-2021-3583

ALT-PU-2021-3603

BDU:2022-00062

CVE-2021-37985

DSA-5046-1

OPENSUSE-SU-2021:1392-1

OPENSUSE-SU-2021:1396-1

OPENSUSE-SU-2021:1488-1

OPENSUSE-SU-2021:1489-1

OPENSUSE-SU-2021_1396-1

OPENSUSE-SU-2021_1488-1

OPENSUSE-SU-2021_1489-1

OPENSUSE-SU-2022:0110-1

OPENSUSE-SU-2022_0110-1

OPENSUSE-SU-2024:11598-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

V8 Javascript Engine

References · 2354

• 🔥 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/maldiohead/TFC-Chrome-v8-bug-CVE-2021-38001-poc · Exploit
• 🔥❌ https://github.com/Lagal1990/CVE-2021-30632 · Exploit, Deleted
• 🔥❌ https://github.com/Expdev893/CVE-2021-30632 · Exploit, Deleted
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-37985 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:1489-1 · Vendor Advisory
• https://crbug.com/1241860 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-37985 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12948-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-37985 · Vendor Advisory