Vulnerability Description
Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.
CVSS Score
3.2
LOW
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N
Related Weaknesses (CWE)
References
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html
FAQ
What is CVE-2024-21977?
CVE-2024-21977 is a vulnerability with a CVSS score of 3.2 (LOW). Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.
How severe is CVE-2024-21977?
CVE-2024-21977 has been rated LOW with a CVSS base score of 3.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-21977?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.