PT-2020-6238 · Google+3 · Google Chrome+3

Woojin Oh · Published 2020-12-24 · Updated 2024-06-15 · CVE-2021-21188

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 89.0.4389.72

Description The issue is related to a use after free vulnerability in the Blink mechanism of Google Chrome, which can lead to memory corruption. This can potentially allow a remote attacker to access confidential information or cause a denial of service. The vulnerability can be exploited via a crafted HTML page.

Recommendations For versions prior to 89.0.4389.72, update to version 89.0.4389.72 or later to resolve the issue. As a temporary workaround, consider restricting access to potentially vulnerable web pages until the update is applied.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2021-1460

ALT-PU-2021-1511

ALT-PU-2021-1668

ALT-PU-2021-1751

ALT-PU-2021-2141

BDU:2021-03644

CVE-2021-21188

DSA-4886-1

MGASA-2021-0142

OPENSUSE-SU-2021:0392-1

OPENSUSE-SU-2021:0401-1

OPENSUSE-SU-2021_0392-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2354

• 🔥 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://crbug.com/1161739 · Exploit
• https://ubuntu.com/security/CVE-2021-21188 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21188 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210730SE16 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-21188 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21188 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:10681-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-03644 · Security Note
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 · Vendor Advisory
• https://security.gentoo.org/glsa/202104-08 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4886-1 · Vendor Advisory