CVE-2020-3989

EUVD-2020-25254

16.09.2020, 17:15

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.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	3.3 LOW	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Base Score

CVSS 3.x

EPSS Score

Percentile: 10%

Affected Products (NVD)

Vendor	Product	Version
vmware	horizon_client	5.0.0 ≤ 𝑥 < 5.4.4
vmware	workstation_player	15.0.0 ≤ 𝑥 < 16.0.0
vmware	workstation_pro	15.0.0 ≤ 𝑥 < 16.0.0

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-787 - Out-of-bounds Write
The software writes data past the end, or before the beginning, of the intended buffer.

References

https://www.vmware.com/security/advisories/VMSA-2020-0020.html