PT-2021-2013 · Google+2 · Google Chrome+2

Published 2021-02-19 · Updated 2024-06-15 · CVE-2021-21157

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 88.0.4324.182

Description The issue is related to a use after free in Web Sockets, which can lead to heap corruption. A remote attacker could potentially exploit this via a crafted HTML page. This may allow the attacker to gain unauthorized access to protected information.

Recommendations For versions prior to 88.0.4324.182, update to version 88.0.4324.182 or later to resolve the issue. As a temporary workaround, consider disabling Web Sockets functionality until a patch is applied. Restrict access to crafted HTML pages to minimize the risk of exploitation.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2021-00849

CVE-2021-21157

DSA-4858-1

MGASA-2021-0406

OPENSUSE-SU-2021:0392-1

OPENSUSE-SU-2021:0401-1

OPENSUSE-SU-2021:0413-1

OPENSUSE-SU-2021:0973-1

OPENSUSE-SU-2021:1016-1

OPENSUSE-SU-2021_0392-1

OPENSUSE-SU-2021_0413-1

OPENSUSE-SU-2021_0973-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:10977-1

OPENSUSE-SU-2024:12948-1

Affected Products

Astra Linux

Google Chrome

Suse

References · 2354

• 🔥 https://crbug.com/1170657 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2021-21157 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:1016-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BI6ZIJQYP5DFMYVX4J5OGOU2NQLEZ3SB · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21157 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-21157 · Security Note
• https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_16.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21157 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:10681-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20210611SE16 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0406.html · Security Note
• https://security.gentoo.org/glsa/202104-08 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00849 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-21157 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4858-1 · Vendor Advisory