SB2021102136 - Privilege escalation in Intel SGX SDK
Published: October 21, 2021
Security Bulletin ID
SB2021102136
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-0186)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local administrator to escalate privileges on the system.
The vulnerability exists due to improper input validation in the Intel SGX SDK applications compiled for SGX2 enabled processors, which leads to security restrictions bypass and privilege escalation.
This vulnerability affects the following Intel Processors supporting SGX2:
- Ice Lake Xeon-SP (HCC, XCC) - 3rd Gen Intel® Xeon® Scalable processor famil
- Ice Lake - 10th Generation Intel® Core™ Processor Famil
- Gemini Lake - Intel® Pentium® Processor Silver Series, Intel® Celeron® Processor J Series, Intel® Celeron® Processor N Serie
Remediation
Install update from vendor's website.