#VU48425 Input validation error in Intel Software Guard Extensions (SGX) Datacenter Attestation Primitives (DCAP) - CVE-2020-8766

Vulnerability identifier: #VU48425

Vulnerability risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-8766

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Intel Software Guard Extensions (SGX) Datacenter Attestation Primitives (DCAP)
Hardware solutions / Firmware

Vendor: Intel

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper conditions check. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Intel Software Guard Extensions (SGX) Datacenter Attestation Primitives (DCAP): before 1.6

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00398

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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