PT-2021-3566 · Google+3 · V8+4

Brendon Tiszka · Published 2021-04-16 · Updated 2025-12-04 · CVE-2021-21225

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 90.0.4430.85

Description The issue is related to an out of bounds memory access in the V8 engine of Google Chrome, which could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. This may lead to unauthorized access to confidential information or cause a denial of service. The vulnerability is associated with the Array.prototype.concat implementation in V8.

Recommendations For Google Chrome versions prior to 90.0.4430.85, update to version 90.0.4430.85 or later to resolve the issue. As a temporary workaround, consider restricting access to potentially vulnerable HTML pages until the update is applied. Avoid using the Array.prototype.concat function in sensitive operations until the issue is resolved.

Fix

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

ALT-PU-2021-1876

ALT-PU-2021-1972

ALT-PU-2021-2007

ALT-PU-2021-2009

ALT-PU-2021-2141

BDU:2021-03665

CVE-2021-21225

DSA-4906-1

OPENSUSE-SU-2021:0629-1

OPENSUSE-SU-2021:0712-1

OPENSUSE-SU-2021_0629-1

OPENSUSE-SU-2021_0712-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

V8

References · 2347

• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-21225 · Security Note
• https://osv.dev/vulnerability/DSA-4906-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY · Vendor Advisory
• https://security.gentoo.org/glsa/202104-08 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-21225 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10681-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0629-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21225 · Security Note
• https://bdu.fstec.ru/vul/2021-03665 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2021:0712-1 · Vendor Advisory
• https://debian.org/security/2021/dsa-4906 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-21225 · Vendor Advisory