CVE-2020-3989
VMware Workstation ThinPrint name Table Integer Overflow Privilege Escalation Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
VMware Workstation (15.x) and Horizon Client for Windows (5.x before 5.4.4) contain a denial of service vulnerability due to an out-of-bounds write issue in Cortado ThinPrint component. A malicious actor with normal access to a virtual machine may be able to exploit this issue to create a partial denial-of-service condition on the system where Workstation or Horizon Client for Windows is installed. Exploitation is only possible if virtual printing has been enabled. This feature is not enabled by default on Workstation but it is enabled by default on Horizon Client.
VMware Workstation (versión 15.x) y Horizon Client para Windows (versión 5.x anteriores a 5.4.4), contienen una vulnerabilidad de denegación de servicio debido a un problema de escritura fuera de límites en el componente Cortado ThinPrint. Un actor malicioso con acceso normal a una máquina virtual puede ser capaz de explotar este problema para crear una condición de denegación de servicio parcial en el sistema donde está instalado Workstation o Horizon Client para Windows. La explotación solo es posible si se ha habilitado la impresión virtual. Esta función no está habilitada por defecto en Workstation, pero está habilitada por defecto en Horizon Client
This vulnerability allows local attackers to escalate privileges on affected installations of VMware Workstation. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability.
The specific flaw exists within the ThinPrint component. Crafted data in the name table of a font file can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-12-30 CVE Reserved
- 2020-09-15 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-787: Out-of-bounds Write
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.vmware.com/security/advisories/VMSA-2020-0020.html | 2020-09-28 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Vmware Search vendor "Vmware" | Horizon Client Search vendor "Vmware" for product "Horizon Client" | >= 5.0.0 < 5.4.4 Search vendor "Vmware" for product "Horizon Client" and version " >= 5.0.0 < 5.4.4" | windows |
Affected
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| Vmware Search vendor "Vmware" | Workstation Player Search vendor "Vmware" for product "Workstation Player" | >= 15.0.0 < 16.0.0 Search vendor "Vmware" for product "Workstation Player" and version " >= 15.0.0 < 16.0.0" | - |
Affected
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| Vmware Search vendor "Vmware" | Workstation Pro Search vendor "Vmware" for product "Workstation Pro" | >= 15.0.0 < 16.0.0 Search vendor "Vmware" for product "Workstation Pro" and version " >= 15.0.0 < 16.0.0" | - |
Affected
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