CVE-2022-46487 : Vulnerability Insights and Analysis
CVE-2022-46487 allows a local attacker to compromise floating-point operations' execution integrity in an enclave or access sensitive information via side-channel analysis in SCONE before version 5.8.0 for Intel SGX. Learn about its impact and mitigation.
A local attacker can compromise the execution integrity of floating-point operations in an enclave or access sensitive information due to improper initialization of x87 and SSE floating-point configuration registers in the __scone_entry component of SCONE before version 5.8.0 for Intel SGX.
Understanding CVE-2022-46487
This section provides an overview of the CVE-2022-46487 vulnerability.
What is CVE-2022-46487?
CVE-2022-46487 relates to the improper initialization of x87 and SSE floating-point configuration registers in the __scone_entry component of SCONE. It affects versions before 5.8.0 for Intel SGX.
The Impact of CVE-2022-46487
The vulnerability allows a local attacker to compromise floating-point operations' execution integrity within an enclave or gain unauthorized access to sensitive information through side-channel analysis.
Technical Details of CVE-2022-46487
In this section, you will find more technical information about CVE-2022-46487.
Vulnerability Description
The vulnerability arises from the incorrect initialization of x87 and SSE floating-point configuration registers in the __scone_entry component of SCONE version 5.8.0 and earlier.
Affected Systems and Versions
All versions of SCONE before 5.8.0 for Intel SGX are affected by this vulnerability.
Exploitation Mechanism
A local attacker can exploit this vulnerability to tamper with floating-point operations within enclaves or conduct side-channel attacks to access sensitive data.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2022-46487.
Immediate Steps to Take
To address this issue, ensure you update SCONE to version 5.8.0 or later. Additionally, monitor for any suspicious activities on SGX enclaves.
Long-Term Security Practices
Implement secure coding practices, utilize hardware-based security features effectively, and regularly update software to prevent similar vulnerabilities.
Patching and Updates
Stay informed about security patches and updates released by the SCONE project for Intel SGX to protect against CVE-2022-46487.