CVE-2023-20582 (CVSS 5.3)

Description

Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry (PTE) faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

Weakness Type (CWE)

CWE-1284 CWE-1284

References

Other References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3009.html https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5004.html

Frequently Asked Questions

What is CVE-2023-20582? +

Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry (PTE) faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-20582? +

CVE-2023-20582 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2023-20582? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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