VMware ESXi/Fusion/Workstation SVGA Device off-by-one

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

A vulnerability was found in VMware ESXi, Fusion and Workstation (Virtualization Software) (the affected version unknown). It has been classified as critical. This affects an unknown code of the component SVGA Device Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-193. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202004101-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.5), and Fusion (11.x before 11.5.5) contain an off-by-one heap-overflow vulnerability in the SVGA device. A malicious actor with local access to a virtual machine with 3D graphics enabled may be able to exploit this vulnerability to execute code on the hypervisor from a virtual machine. Additional conditions beyond the attacker's control must be present for exploitation to be possible.

The weakness was published 06/24/2020 (Website). The advisory is shared at vmware.com. This vulnerability is uniquely identified as CVE-2020-3969 since 12/30/2019. An attack has to be approached locally. A authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/27/2020).

Upgrading eliminates this vulnerability.

Similar entries are available at 157244, 157273, 157274 and 157275.

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VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2infoedit

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-193
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

12/30/2019 CVE assigned
06/24/2020 +177 days Advisory disclosed
06/26/2020 +2 days VulDB entry created
10/27/2020 +123 days VulDB last update

Sourcesinfoedit

Vendor: https://www.vmware.com/

Advisory: vmware.com
Status: Not defined
Confirmation: 🔒

CVE: CVE-2020-3969 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20060413
See also: 🔒

Entryinfoedit

Created: 06/26/2020 07:54 AM
Updated: 10/27/2020 07:41 AM
Changes: (1) advisory_confirm_url
Complete: 🔍

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