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 Subscribe |
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
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsVMware Tools: 9.0.0 - 11.2.6
External linkshttp://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.
