PT-2021-5611 · Microsoft+4 · Edge+5

Cassidy Kim · Published 2021-10-19 · Updated 2024-06-15 · CVE-2021-37993

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 95.0.4638.54

Description The issue is related to a use after free vulnerability in the PDFium PDF content handler of Google Chrome and Microsoft Edge browsers, which can be exploited by a remote attacker using a specially crafted HTML page to bypass existing security restrictions. This can potentially lead to heap corruption.

Recommendations For Google Chrome versions prior to 95.0.4638.54, update to version 95.0.4638.54 or later to resolve the issue. As a temporary workaround, consider restricting access to PDF content in Google Chrome until the update is applied.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2021-3095

ALT-PU-2021-3329

ALT-PU-2021-3408

ALT-PU-2021-3431

ALT-PU-2021-3436

ALT-PU-2021-3583

ALT-PU-2021-3603

BDU:2022-00045

CVE-2021-37993

DSA-5046-1

MGASA-2022-0050

OPENSUSE-SU-2021:1392-1

OPENSUSE-SU-2021:1396-1

OPENSUSE-SU-2021:1488-1

OPENSUSE-SU-2021:1489-1

OPENSUSE-SU-2021_1396-1

OPENSUSE-SU-2021_1488-1

OPENSUSE-SU-2021_1489-1

OPENSUSE-SU-2022:0110-1

OPENSUSE-SU-2022_0110-1

OPENSUSE-SU-2024:11598-1

OPENSUSE-SU-2024:11745-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Edge

Pdfium

Suse

References · 2359

• 🔥 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/maldiohead/TFC-Chrome-v8-bug-CVE-2021-38001-poc · Exploit
• 🔥❌ https://github.com/Lagal1990/CVE-2021-30632 · Exploit, Deleted
• 🔥❌ https://github.com/Expdev893/CVE-2021-30632 · Exploit, Deleted
• https://osv.dev/vulnerability/openSUSE-SU-2021:1489-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2022-0050.html · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-37993 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-37993 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/2MLX3OHXV7SCLP5MK4AA5TVXPPNSWDUP · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12948-1 · Vendor Advisory