Two privilege escalation vulnerabilities in Intel Xeon processors with Intel SGX

Published: 2024-12-27

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2024-23918 CVE-2024-21820
CWE-ID	CWE-754 CWE-276
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	3rd Generation Intel Xeon Scalable Processors Hardware solutions / Firmware Intel Xeon D Processors Hardware solutions / Firmware 4th Generation Intel Xeon Scalable Processors Hardware solutions / Firmware 5th Generation Intel Xeon Scalable processors Hardware solutions / Firmware
Vendor	Intel

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Check for Unusual or Exceptional Conditions

EUVDB-ID: #VU101941

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-23918

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

Exploit availability: No

Description

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

The vulnerability exists due to improper error handling in Intel SGX. A local user can execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

3rd Generation Intel Xeon Scalable Processors: All versions

Intel Xeon D Processors: All versions

4th Generation Intel Xeon Scalable Processors: All versions

5th Generation Intel Xeon Scalable processors: All versions

CPE2.3

External links

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01079.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.

2) Incorrect default permissions

EUVDB-ID: #VU101942