PT-2021-3620 · Google+3 · Google Chrome+3

Sergei Glazunov · Published 2021-04-13 · Updated 2024-06-15 · CVE-2021-21231

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 90.0.4430.93

Description The issue is related to insufficient data validation in the V8 JavaScript engine of Google Chrome, allowing a remote attacker to potentially exploit heap corruption via a crafted HTML page. This could lead to unauthorized access to confidential information or cause a denial of service.

Recommendations For versions prior to 90.0.4430.93, update to version 90.0.4430.93 or later to resolve the issue. As a temporary workaround, consider restricting access to potentially malicious HTML pages to minimize the risk of exploitation.

Exploit

Fix

Insufficient Verification of Data Authenticity

Memory Corruption

Weakness Enumeration

CWE-345

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:2021-03762

CVE-2021-21231

DSA-4911-1

OPENSUSE-SU-2021:0629-1

OPENSUSE-SU-2021:0729-1

OPENSUSE-SU-2021_0629-1

OPENSUSE-SU-2021_0729-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2345

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_cve_2021_21220_v8_insufficient_validation.rb · Exploit
• 🔥 https://github.com/xmzyshypnc/CVE-2021-30551 · Exploit
• 🔥 https://github.com/security-dbg/CVE-2021-21220 · Exploit
• 🔥❌ https://github.com/ohnonoyesyes/CVE-2021-21224 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2021-21231 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-21231 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21231 · Vendor Advisory
• https://crbug.com/1198696 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-21231 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21231 · 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/openSUSE-SU-2024:10681-1 · Vendor Advisory