Information disclosure in multiple Intel Porcessors

1) Information disclosure

EUVDB-ID: #VU25898

Risk: Low

CVSSv3.1: 3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-0551

CWE-ID: CWE-200 - Information exposure

Exploit availability: Yes

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to load value injection in some Intel(R) Processors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.

Mitigation

Install updates from vendor's website.

The list of affected processor families is available here:

https://software.intel.com/security-software-guidance/processors-affected-transient-execution-attack-mitigation-product-cpu-model

Vulnerable software versions

Intel SGX SDK for Windows: 2.2.100 - 2.6.100.1

Intel SGX SDK for Linux: 2.4.100 - 2.6.100.1

CPE2.3

• cpe:2.3:a:intel:intel_sgx_sdk_for_windows:*:*:*:*:*:*:*:
• cpe:2.3:a:intel:intel_sgx_sdk_for_windows:2.2.100:*:*:*:*:*:*:
• cpe:2.3:a:intel:intel_sgx_sdk_for_windows:2.6.100.1:*:*:*:*:*:*:
• cpe:2.3:a:intel:intel_sgx_sdk_for_linux:*:*:*:*:*:*:*:
• cpe:2.3:a:intel:intel_sgx_sdk_for_linux:2.4.100:*:*:*:*:*:*:
• cpe:2.3:a:intel:intel_sgx_sdk_for_linux:2.6.100.1:*:*:*:*:*:*:

External links

http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00334.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. However, proof of concept for this vulnerability is available.