CVE-2023-20584
6.0
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity.
How to fix CVE-2023-20584
To remediate CVE-2023-20584, upgrade the affected package to a fixed version below.
- Debian/amd64-microcode—upgrade to 3.20240820.1~deb11u1 or later
Is CVE-2023-20584 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.20240820.1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N |