#VU63179 Input validation error in 2nd Generation Intel Xeon Scalable Processors and 3rd Generation Intel Xeon Scalable Processors - CVE-2021-0159

Vulnerability identifier: #VU63179

Vulnerability risk: Low

CVSSv4.0: 3.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-0159

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
2nd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware
3rd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware

Vendor: Intel

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in the BIOS authenticated code module. A local user can pass specially crafted data to the affected module and execute arbitrary code on the system with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

2nd Generation Intel Xeon Scalable Processors: All versions

3rd Generation Intel Xeon Scalable Processors: All versions

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External links
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00601.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.