PT-2021-2804 · Microsoft+4 · Edge+5

Manfred Paul · Published 2021-04-13 · Updated 2025-02-14 · CVE-2021-21230

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 Microsoft Edge (affected versions not specified)

Description The issue is related to a type confusion in the V8 JavaScript engine, which can lead to heap corruption. A remote attacker can potentially exploit this issue via a crafted HTML page, allowing for arbitrary code execution. The problem is associated with accessing a resource through incompatible types.

Recommendations For Google Chrome versions prior to 90.0.4430.93, update to version 90.0.4430.93 or later to resolve the issue. For Microsoft Edge, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

ALT-PU-2021-1876

ALT-PU-2021-1972

ALT-PU-2021-2007

ALT-PU-2021-2009

ALT-PU-2021-2141

BDU:2021-02349

CVE-2021-21230

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

Edge

Suse

V8 Javascript Engine

References · 2349

• 🔥 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://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21230 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-21230 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21230 · 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://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-21230 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10681-1 · Vendor Advisory
• https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_26.html · Vendor Advisory