PT-2021-4551 · Google+3 · Google Chrome+3

David Erceg · Published 2021-04-15 · Updated 2024-06-15 · CVE-2021-30527

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 91.0.4472.77

Description The issue is related to a use after free in the WebUI of Google Chrome, which could allow an attacker to exploit heap corruption via a crafted HTML page if a user is convinced to install a malicious extension. This could potentially lead to unauthorized access to confidential data, disruption of data integrity, and denial of service.

Recommendations For versions prior to 91.0.4472.77, update to version 91.0.4472.77 or later to resolve the issue. As a temporary workaround, consider restricting the installation of extensions to trusted sources and avoiding the use of crafted HTML pages until the update is applied.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2021-1876

ALT-PU-2021-1972

ALT-PU-2021-2007

ALT-PU-2021-2009

ALT-PU-2021-2141

BDU:2021-05219

CVE-2021-30527

OPENSUSE-SU-2021:0825-1

OPENSUSE-SU-2021:0840-1

OPENSUSE-SU-2021_0825-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2344

• 🔥 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://crbug.com/1199198 · Exploit
• 🔥❌ https://github.com/ohnonoyesyes/CVE-2021-21224 · Exploit, Deleted
• https://security-tracker.debian.org/tracker/CVE-2021-30527 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-30527 · Security Note
• https://osv.dev/vulnerability/CVE-2021-30527 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30527 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:12948-1 · Vendor Advisory
• https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-30527 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-30527 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0840-1 · Vendor Advisory