VMware ESXi, Workstation, and Fusion updates address multiple security vulnerabilities (CVE-2021-22040, CVE-2021-22041, CVE-2021-22042, CVE-2021-22043, CVE-2021-22050)

3a. Use-after-free vulnerability in XHCI USB controller (CVE-2021-22040)

VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability in the XHCI USB controller.VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.4.

3b. Double-fetch vulnerability in UHCI USB controller (CVE-2021-22041)

VMware ESXi, Workstation, and Fusion contain a double-fetch vulnerability in the UHCI USB controller. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.4.

3c. ESXi settingsd unauthorized access vulnerability (CVE-2021-22042)

VMware ESXi contains an unauthorized access vulnerability due to VMX having access to settingsd authorization tickets. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.2.

3d. ESXi settingsd TOCTOU vulnerability (CVE-2021-22043)

VMware ESXi contains a TOCTOU (Time-of-check Time-of-use) vulnerability that exists in the way temporary files are handled. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.2.

3e. ESXi slow HTTP POST denial of service vulnerability (CVE-2021-22050)

ESXi contains a slow HTTP POST denial-of-service vulnerability in rhttpproxy. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 5.3.