PT-2021-2629 · Microsoft+3 · Edge+4

Zhou Aiting · Published 2021-01-14 · Updated 2024-06-15 · CVE-2021-21218

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Google Chrome versions prior to 90.0.4430.72 Microsoft Edge (affected versions not specified)

Description: The issue is related to the use of an uninitialized resource in the PDFium PDF content handler. It may allow a remote attacker to cause a denial of service using a specially crafted web page or obtain potentially sensitive information from process memory via a crafted PDF file.

Recommendations: For Google Chrome versions prior to 90.0.4430.72, update to version 90.0.4430.72 or later to resolve the issue. For Microsoft Edge, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

ALT-PU-2021-1667

ALT-PU-2021-1972

ALT-PU-2021-2007

ALT-PU-2021-2009

ALT-PU-2021-2141

BDU:2021-02119

CVE-2021-21218

DSA-4906-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Edge

Pdfium

References · 2340

• 🔥 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://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4906-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21218 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21218 · Security Note
• 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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10681-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-21218 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02119 · Security Note