Vulnerability identifier: #VU49098

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3999

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
VMware ESXi
Operating systems & Components / Operating system
VMware Workstation
Client/Desktop applications / Virtualization software
VMware Fusion
Client/Desktop applications / Virtualization software

Vendor: VMware, Inc

Description

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

The vulnerability exists due to a NULL pointer dereference error in the SetGuestInfo call. A local user can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

VMware ESXi: 7.0 - ESXi70U1b-17168206

VMware Workstation: 15.0.0 - 15.5.6

VMware Fusion: 11.0.0 - 11.5.6

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External links
http://www.vmware.com/security/advisories/VMSA-2020-0029.html
http://www.zerodayinitiative.com/advisories/ZDI-20-1450/

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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.