PT-2021-4552 · Google+3 · Google Chrome+3

Tolyan Korniltsev · Published 2021-03-13 · Updated 2024-06-15 · CVE-2021-30523

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 WebRTC, allowing a remote attacker to potentially exploit heap corruption via a crafted SCTP packet. This could 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 access to WebRTC functionality 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:2021-05220

CVE-2021-30523

OPENSUSE-SU-2021:0825-1

OPENSUSE-SU-2021:0840-1

OPENSUSE-SU-2021_0825-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:10977-1

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://github.com/ohnonoyesyes/CVE-2021-21224 · Exploit, Deleted
• 🔥 https://crbug.com/1187797 · Exploit
• 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://osv.dev/vulnerability/DEBIAN-CVE-2021-30523 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30523 · Security Note
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-30523 · Security Note
• https://osv.dev/vulnerability/CVE-2021-30523 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0840-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54 · Vendor Advisory