Vulnerability identifier: #VU47749
Vulnerability risk: High
CVSSv3.1: 7.3 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-787
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
VMware ESXi
Operating systems & Components /
Operating system
Vendor: VMware, Inc
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error caused by a time-of-check time-of-use issue in ACPI device within the implementation of the BDOOR_CMD_PATCH_ACPI_TABLES command. A remote administrator on the guest OS can run a specially crafted program to trigger a heap-based buffer overflow and crash the system or execute arbitrary code on the hypervisor.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
VMware ESXi: 6.5 - ESXi_7.0.0-1.20.16321839
External links
http://www.vmware.com/security/advisories/VMSA-2020-0023.html
http://www.zerodayinitiative.com/advisories/ZDI-20-1268/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.