PT-2021-4610 · Google+3 · Google Chrome+3

Jun Kokatsu · Published 2021-04-28 · Updated 2024-06-15 · CVE-2021-30518

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 90.0.4430.212

Description The issue is related to a heap buffer overflow in Reader Mode, which can be exploited by a remote attacker using a specially crafted HTML page. This could allow the attacker to access confidential data, compromise data integrity, and cause a denial of service. The estimated number of potentially affected devices worldwide is not specified. There is no information about real-world incidents where this issue was exploited.

Recommendations For Google Chrome versions prior to 90.0.4430.212, update to version 90.0.4430.212 or later to resolve the issue. As a temporary workaround, consider avoiding the use of Reader Mode until a patch is available. Restrict access to crafted HTML pages to minimize the risk of exploitation.

Exploit

Fix

Memory Corruption

Weakness Enumeration

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:2021-05294

CVE-2021-30518

DSA-4917-1

OPENSUSE-SU-2021:0742-1

OPENSUSE-SU-2021:0762-1

OPENSUSE-SU-2021:0828-1

OPENSUSE-SU-2021:0829-1

OPENSUSE-SU-2021_0742-1

OPENSUSE-SU-2021_0762-1

OPENSUSE-SU-2021_0828-1

OPENSUSE-SU-2021_0829-1

OPENSUSE-SU-2022:0110-1

OPENSUSE-SU-2022_0110-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2360

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_cve_2021_21220_v8_insufficient_validation.rb · Exploit
• 🔥 https://github.com/Phuong39/PoC-CVE-2021-30632 · Exploit
• 🔥 https://github.com/ZeusBox/CVE-2021-37980 · Exploit
• 🔥 https://github.com/SpiralBL0CK/Chrome-V8-RCE-CVE-2021-38003 · Exploit
• 🔥 https://github.com/CrackerCat/CVE-2021-30632 · Exploit
• 🔥 https://github.com/Peterpan0927/TFC-Chrome-v8-bug-CVE-2021-38001-poc · Exploit
• 🔥 https://github.com/xmzyshypnc/CVE-2021-30551 · Exploit
• 🔥 https://github.com/security-dbg/CVE-2021-21220 · Exploit
• 🔥 https://github.com/maldiohead/TFC-Chrome-v8-bug-CVE-2021-38001-poc · Exploit
• 🔥❌ https://github.com/ohnonoyesyes/CVE-2021-21224 · Exploit, Deleted
• 🔥❌ https://github.com/Lagal1990/CVE-2021-30632 · Exploit, Deleted
• 🔥❌ https://github.com/Expdev893/CVE-2021-30632 · Exploit, Deleted
• 🔥 https://crbug.com/1203590 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-30518 · Security Note
• https://chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop.html · Vendor Advisory