Local denial of service in VMware ESXi

1) NULL pointer dereference

EUVDB-ID: #VU67979

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-31681

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A local user with privileges within the VMX process only can perform a denial of service (DoS) attack against the host.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware ESXi: ESXi70U1c-17325551 - ESXi670-20211104001

CPE2.3

• cpe:2.3:o:vmware:vmware_esxi:ESXi70U1c-17325551:*:*:*:*:*:*:*
• cpe:2.3:o:vmware:vmware_esxi:ESXi70U1e-19324898:*:*:*:*:*:*:*
• cpe:2.3:o:vmware:vmware_esxi:ESXi70U1b-17168206:*:*:*:*:*:*:*

External links

https://www.vmware.com/security/advisories/VMSA-2022-0025.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.