PT-2021-3387 · Vmware · Vmware Tools For Windows+1

Honggang Ren · Published 2021-06-18 · Updated 2021-06-24 · CVE-2021-21997

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions VMware Tools for Windows versions 11.x.y prior to 11.3.0

Description The issue is related to a denial-of-service vulnerability in the VM3DMP driver of VMware Tools for Windows. This vulnerability can be triggered by a malicious actor with local user privileges in the Windows guest operating system, leading to a denial-of-service condition. The vulnerability exists due to insufficient input validation in the VM3DMP driver, allowing an attacker to cause a denial-of-service.

Recommendations For versions 11.x.y prior to 11.3.0, update to version 11.3.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the VM3DMP driver to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2021-03238

CVE-2021-21997

Affected Products

Vmware Tools

Vmware Tools For Windows

References · 5

• https://osv.dev/vulnerability/CVE-2021-21997 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21997 · Security Note
• https://bdu.fstec.ru/vul/2021-03238 · Security Note
• https://vmware.com/security/advisories/VMSA-2021-0011.html · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021061801 · Note