Vulnerability identifier: #VU29295

Vulnerability risk: Low

CVSSv3.1: 8.1 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3969

CWE-ID: CWE-193

Exploitation vector: Local

Exploit availability: No

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

Vendor: VMware, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an off-by-one error in SVGA device when processing SVGA3D commands. A local attacker can trigger an off-by-one error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

VMware ESXi: 7.0

VMware Fusion: 11.0.0 - 11.5.3

VMware Workstation: 15.0.0 - 15.5.2

Cloud Foundation: 3.0 - 4.0

---

External links
http://www.vmware.com/security/advisories/VMSA-2020-0015.html
http://www.zerodayinitiative.com/advisories/ZDI-20-786/

---

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.