Vulnerability identifier: #VU64366

Vulnerability risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21166

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Intel SGX DCAP for Linux
Hardware solutions / Firmware
Intel SGX PSW for Linux
Hardware solutions / Firmware
Intel SGX DCAP for Windows
Hardware solutions / Firmware
Intel SGX PSW for Windows
Hardware solutions / Firmware
Intel SGX SDK for Linux
Client/Desktop applications / Other client software
Intel SGX SDK for Windows
Client/Desktop applications / Other client software

Vendor:

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://www.vmware.com/security/advisories/VMSA-2022-0016.html

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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.