PT-2021-2530 · Google+3 · Google Chrome+3

Guang Gong + 1 · Published 2021-02-23 · Updated 2024-06-15 · CVE-2021-21194

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 89.0.4389.114

Description: The issue is related to a use after free in screen sharing, which can lead to heap corruption. A remote attacker can potentially exploit this via a crafted HTML page, allowing them to execute arbitrary code or cause a denial of service.

Recommendations: For versions prior to 89.0.4389.114, update to version 89.0.4389.114 or later to resolve the issue. As a temporary workaround, consider disabling the screen sharing feature until a patch is available. Restrict access to crafted HTML pages to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Use After Free

Weakness Enumeration

CWE-119

CWE-416

Related Identifiers

ALT-PU-2021-1624

ALT-PU-2021-1668

ALT-PU-2021-1744

ALT-PU-2021-1751

ALT-PU-2021-2141

BDU:2021-01936

CVE-2021-21194

DSA-4886-1

OPENSUSE-SU-2021:0513-1

OPENSUSE-SU-2021:0515-1

OPENSUSE-SU-2021:0592-1

OPENSUSE-SU-2021_0513-1

OPENSUSE-SU-2021_0592-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2348

• 🔥 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://osv.dev/vulnerability/DEBIAN-CVE-2021-21194 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-21194 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01936 · Security Note
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21194 · Vendor Advisory
• https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_30.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0513-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY · Vendor Advisory
• https://security.gentoo.org/glsa/202104-08 · Vendor Advisory
• https://crbug.com/1181228 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG · Vendor Advisory