Denial of service in VMware Tools for Windows



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-21997
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
 VMware Tools
Client/Desktop applications / Other client software

Vendor VMware, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU54215

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21997

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the VM3DMP driver. A local unprivileged user on the guest operating system can trigger panic in the VM3DMP and perform a denial of service (DoS) attack against the guest operating system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware Tools: 9.0.0 - 11.2.6

CPE2.3 External links

http://www.vmware.com/security/advisories/VMSA-2021-0011.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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