SB2020052907 - Denial of service in VMware ESXi, Workstation and Fusion
Published: May 29, 2020 Updated: June 1, 2020
Security Bulletin ID
SB2020052907
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Reachable Assertion (CVE-ID: CVE-2020-3958)
CWE-ID: CWE-617 - Reachable Assertion
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to reachable assertion in the shader functionality. A remote user of guest operating system can
pass a malformed pixel shader (inside VMware guest OS) and perform a denial of
service (DoS) attack due a panic condition in the vmware-vmx.exe process on host.
Remediation
Install update from vendor's website.