CVE-2020-3966: VMware Workstation EHCI Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability
First published: Thu Jun 25 2020(Updated: )
This vulnerability allows local attackers to escalate privileges on affected installations of VMware Workstation. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the EHCI component. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor.
Credit: security@vmware.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| VMware Workstation | ||
| VMware Cloud Foundation | >=3.0<3.10 | |
| VMware Cloud Foundation | >=4.0.0<4.0.1 | |
| VMware Fusion Pro | >=11.0.0<11.5.2 | |
| VMware Workstation | >=15.0.0<15.5.2 | |
| VMware ESXi | =6.5 | |
| VMware ESXi | =6.5-650-201701001 | |
| VMware ESXi | =6.5-650-201703001 | |
| VMware ESXi | =6.5-650-201703002 | |
| VMware ESXi | =6.5-650-201704001 | |
| VMware ESXi | =6.5-650-201707101 | |
| VMware ESXi | =6.5-650-201707102 | |
| VMware ESXi | =6.5-650-201707103 | |
| VMware ESXi | =6.5-650-201707201 | |
| VMware ESXi | =6.5-650-201707202 | |
| VMware ESXi | =6.5-650-201707203 | |
| VMware ESXi | =6.5-650-201707204 | |
| VMware ESXi | =6.5-650-201707205 | |
| VMware ESXi | =6.5-650-201707206 | |
| VMware ESXi | =6.5-650-201707207 | |
| VMware ESXi | =6.5-650-201707208 | |
| VMware ESXi | =6.5-650-201707209 | |
| VMware ESXi | =6.5-650-201707210 | |
| VMware ESXi | =6.5-650-201707211 | |
| VMware ESXi | =6.5-650-201707212 | |
| VMware ESXi | =6.5-650-201707213 | |
| VMware ESXi | =6.5-650-201707214 | |
| VMware ESXi | =6.5-650-201707215 | |
| VMware ESXi | =6.5-650-201707216 | |
| VMware ESXi | =6.5-650-201707217 | |
| VMware ESXi | =6.5-650-201707218 | |
| VMware ESXi | =6.5-650-201707219 | |
| VMware ESXi | =6.5-650-201707220 | |
| VMware ESXi | =6.5-650-201707221 | |
| VMware ESXi | =6.5-650-201710001 | |
| VMware ESXi | =6.5-650-201712001 | |
| VMware ESXi | =6.5-650-201803001 | |
| VMware ESXi | =6.5-650-201806001 | |
| VMware ESXi | =6.5-650-201808001 | |
| VMware ESXi | =6.5-650-201810001 | |
| VMware ESXi | =6.5-650-201810002 | |
| VMware ESXi | =6.5-650-201811001 | |
| VMware ESXi | =6.5-650-201811002 | |
| VMware ESXi | =6.5-650-201811301 | |
| VMware ESXi | =6.5-650-201901001 | |
| VMware ESXi | =6.5-650-201903001 | |
| VMware ESXi | =6.5-650-201905001 | |
| VMware ESXi | =6.5-650-201908001 | |
| VMware ESXi | =6.5-650-201910001 | |
| VMware ESXi | =6.5-650-20191004001 | |
| VMware ESXi | =6.5-650-201911001 | |
| VMware ESXi | =6.5-650-201911401 | |
| VMware ESXi | =6.5-650-201911402 | |
| VMware ESXi | =6.5-650-201912001 | |
| VMware ESXi | =6.5-650-201912002 | |
| VMware ESXi | =6.5-650-201912101 | |
| VMware ESXi | =6.5-650-201912102 | |
| VMware ESXi | =6.5-650-201912103 | |
| VMware ESXi | =6.5-650-201912104 | |
| VMware ESXi | =6.5-650-201912301 | |
| VMware ESXi | =6.5-650-201912401 | |
| VMware ESXi | =6.5-650-201912402 | |
| VMware ESXi | =6.5-650-201912403 | |
| VMware ESXi | =6.5-650-201912404 | |
| VMware ESXi | =6.5-650-202005001 | |
| VMware ESXi | =6.7 | |
| VMware ESXi | =6.7-670-201806001 | |
| VMware ESXi | =6.7-670-201807001 | |
| VMware ESXi | =6.7-670-201808001 | |
| VMware ESXi | =6.7-670-201810001 | |
| VMware ESXi | =6.7-670-201810101 | |
| VMware ESXi | =6.7-670-201810102 | |
| VMware ESXi | =6.7-670-201810103 | |
| VMware ESXi | =6.7-670-201810201 | |
| VMware ESXi | =6.7-670-201810202 | |
| VMware ESXi | =6.7-670-201810203 | |
| VMware ESXi | =6.7-670-201810204 | |
| VMware ESXi | =6.7-670-201810205 | |
| VMware ESXi | =6.7-670-201810206 | |
| VMware ESXi | =6.7-670-201810207 | |
| VMware ESXi | =6.7-670-201810208 | |
| VMware ESXi | =6.7-670-201810209 | |
| VMware ESXi | =6.7-670-201810210 | |
| VMware ESXi | =6.7-670-201810211 | |
| VMware ESXi | =6.7-670-201810212 | |
| VMware ESXi | =6.7-670-201810213 | |
| VMware ESXi | =6.7-670-201810214 | |
| VMware ESXi | =6.7-670-201810215 | |
| VMware ESXi | =6.7-670-201810216 | |
| VMware ESXi | =6.7-670-201810217 | |
| VMware ESXi | =6.7-670-201810218 | |
| VMware ESXi | =6.7-670-201810219 | |
| VMware ESXi | =6.7-670-201810220 | |
| VMware ESXi | =6.7-670-201810221 | |
| VMware ESXi | =6.7-670-201810222 | |
| VMware ESXi | =6.7-670-201810223 | |
| VMware ESXi | =6.7-670-201810224 | |
| VMware ESXi | =6.7-670-201810225 | |
| VMware ESXi | =6.7-670-201810226 | |
| VMware ESXi | =6.7-670-201810227 | |
| VMware ESXi | =6.7-670-201810228 | |
| VMware ESXi | =6.7-670-201810229 | |
| VMware ESXi | =6.7-670-201810230 | |
| VMware ESXi | =6.7-670-201810231 | |
| VMware ESXi | =6.7-670-201810232 | |
| VMware ESXi | =6.7-670-201810233 | |
| VMware ESXi | =6.7-670-201810234 | |
| VMware ESXi | =6.7-670-201811001 | |
| VMware ESXi | =6.7-670-201901001 | |
| VMware ESXi | =6.7-670-201901401 | |
| VMware ESXi | =6.7-670-201901402 | |
| VMware ESXi | =6.7-670-201901403 | |
| VMware ESXi | =6.7-670-201903001 | |
| VMware ESXi | =6.7-670-201904001 | |
| VMware ESXi | =6.7-670-201904201 | |
| VMware ESXi | =6.7-670-201904202 | |
| VMware ESXi | =6.7-670-201904203 | |
| VMware ESXi | =6.7-670-201904204 | |
| VMware ESXi | =6.7-670-201904205 | |
| VMware ESXi | =6.7-670-201904206 | |
| VMware ESXi | =6.7-670-201904207 | |
| VMware ESXi | =6.7-670-201904208 | |
| VMware ESXi | =6.7-670-201904209 | |
| VMware ESXi | =6.7-670-201904210 | |
| VMware ESXi | =6.7-670-201904211 | |
| VMware ESXi | =6.7-670-201904212 | |
| VMware ESXi | =6.7-670-201904213 | |
| VMware ESXi | =6.7-670-201904214 | |
| VMware ESXi | =6.7-670-201904215 | |
| VMware ESXi | =6.7-670-201904216 | |
| VMware ESXi | =6.7-670-201904217 | |
| VMware ESXi | =6.7-670-201904218 | |
| VMware ESXi | =6.7-670-201904219 | |
| VMware ESXi | =6.7-670-201904220 | |
| VMware ESXi | =6.7-670-201904221 | |
| VMware ESXi | =6.7-670-201904222 | |
| VMware ESXi | =6.7-670-201904223 | |
| VMware ESXi | =6.7-670-201904224 | |
| VMware ESXi | =6.7-670-201904225 | |
| VMware ESXi | =6.7-670-201904226 | |
| VMware ESXi | =6.7-670-201904227 | |
| VMware ESXi | =6.7-670-201904228 | |
| VMware ESXi | =6.7-670-201904229 | |
| VMware ESXi | =6.7-670-201905001 | |
| VMware ESXi | =6.7-670-201906002 | |
| VMware ESXi | =6.7-670-201908101 | |
| VMware ESXi | =6.7-670-201908102 | |
| VMware ESXi | =6.7-670-201908103 | |
| VMware ESXi | =6.7-670-201908104 | |
| VMware ESXi | =6.7-670-201908201 | |
| VMware ESXi | =6.7-670-201908202 | |
| VMware ESXi | =6.7-670-201908203 | |
| VMware ESXi | =6.7-670-201908204 | |
| VMware ESXi | =6.7-670-201908205 | |
| VMware ESXi | =6.7-670-201908206 | |
| VMware ESXi | =6.7-670-201908207 | |
| VMware ESXi | =6.7-670-201908208 | |
| VMware ESXi | =6.7-670-201908209 | |
| VMware ESXi | =6.7-670-201908210 | |
| VMware ESXi | =6.7-670-201908211 | |
| VMware ESXi | =6.7-670-201908212 | |
| VMware ESXi | =6.7-670-201908213 | |
| VMware ESXi | =6.7-670-201908214 | |
| VMware ESXi | =6.7-670-201908215 | |
| VMware ESXi | =6.7-670-201908216 | |
| VMware ESXi | =6.7-670-201908217 | |
| VMware ESXi | =6.7-670-201908218 | |
| VMware ESXi | =6.7-670-201908219 | |
| VMware ESXi | =6.7-670-201908220 | |
| VMware ESXi | =6.7-670-201908221 | |
| VMware ESXi | =6.7-670-201912001 | |
| VMware ESXi | =6.7-670-201912101 | |
| VMware ESXi | =6.7-670-201912102 | |
| VMware ESXi | =6.7-670-201912401 | |
| VMware ESXi | =6.7-670-201912402 | |
| VMware ESXi | =6.7-670-201912403 | |
| VMware ESXi | =6.7-670-201912404 | |
| VMware ESXi | =6.7-670-201912405 | |
| VMware ESXi | =6.7-670-202004001 | |
| VMware ESXi | =6.7-670-202004002 | |
| VMware ESXi | =7.0.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-3966?
CVE-2020-3966 has a medium severity rating due to its potential for privilege escalation.
How do I fix CVE-2020-3966?
To fix CVE-2020-3966, it is recommended to update VMware Workstation, Fusion, or ESXi to the latest version provided by VMware.
What types of systems are affected by CVE-2020-3966?
CVE-2020-3966 affects VMware Workstation, VMware Fusion, VMware ESXi, and VMware Cloud Foundation installations.
Can CVE-2020-3966 be exploited remotely?
No, an attacker must have local access to the system to exploit CVE-2020-3966.
What impact does CVE-2020-3966 have on affected systems?
CVE-2020-3966 allows local attackers to escalate privileges, potentially leading to unauthorized access and control of the system.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/author
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/softwarecombine
- agent/description
- agent/first-publish-date
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-20-783
- alias/ZDI-CAN-10608
- alias/CVE-2020-3966
- agent/software-canonical-lookup
- agent/event
- agent/trending
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- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/vmware
- canonical/vmware workstation
- canonical/vmware cloud foundation
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- version/vmware cloud foundation/4.0.0
- canonical/vmware fusion pro
- version/vmware fusion pro/11.0.0
- version/vmware workstation/15.0.0
- canonical/vmware esxi
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- version/vmware esxi/6.5-650-201910001
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- version/vmware esxi/6.5-650-201912301
- version/vmware esxi/6.5-650-201912401
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- version/vmware esxi/6.5-650-201912403
- version/vmware esxi/6.5-650-201912404
- version/vmware esxi/6.5-650-202005001
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- version/vmware esxi/6.7-670-201807001
- version/vmware esxi/6.7-670-201808001
- version/vmware esxi/6.7-670-201810001
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- version/vmware esxi/6.7-670-201810202
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- version/vmware esxi/6.7-670-201810228
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