Vulnerability identifier: #VU54833

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0144

CWE-ID: CWE-453

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
2nd Generation Intel Xeon Scalable Processors
Hardware solutions / Firmware
Intel Core X-series Processors
Hardware solutions / Firmware
Intel Xeon W Processors
Hardware solutions / Firmware
Intel Xeon D Processors
Hardware solutions / Firmware
Intel Xeon Processor E5 v3 Family
Hardware solutions / Firmware
Intel Xeon Processor E5 v4 Family
Hardware solutions / Firmware
Intel Xeon Scalable Processors
Hardware solutions / Other hardware appliances

Vendor: Intel

Description

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

The vulnerability exists due to insecure default variable initialization for the Intel BSSA DFT feature. A local user can run a specially crafted program to 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

Intel Xeon Scalable Processors: All versions

Intel Core X-series Processors: All versions

Intel Xeon W Processors: All versions

Intel Xeon D Processors: All versions

Intel Xeon Processor E5 v3 Family: All versions

Intel Xeon Processor E5 v4 Family: All versions

---

External links
http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00525.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.