PT-2021-2609 · Microsoft+3 · Edge+3

Published 2021-01-24 · Updated 2024-06-15 · CVE-2021-21214

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 90.0.4430.72 Microsoft Edge (affected versions not specified)

Description The issue is related to a use after free vulnerability in the Network API of Google Chrome and Microsoft Edge browsers. This vulnerability can be exploited by a remote attacker using a specially crafted web page, potentially allowing them to impact the confidentiality of protected information. The exploitation may involve heap corruption via a crafted Chrome Extension.

Recommendations For Google Chrome versions prior to 90.0.4430.72, update to version 90.0.4430.72 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

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2021-1667

ALT-PU-2021-1972

ALT-PU-2021-2007

ALT-PU-2021-2009

ALT-PU-2021-2141

BDU:2021-02098

CVE-2021-21214

DSA-4906-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Edge

References · 2341

• 🔥 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://osv.dev/vulnerability/DSA-4906-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21214 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21214 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-21214 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21214 · 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://cve.org/CVERecord?id=CVE-2021-21214 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A · Vendor Advisory