| Name | CVE-2023-20584 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| amd64-microcode (PTS) | jessie/non-free | 3.20230719.1~deb8u1 | vulnerable |
| jessie/non-free (lts) | 3.20181128.1~deb8u1 | vulnerable |
| stretch/non-free | 3.20230719.1~deb9u1 | vulnerable |
| stretch/non-free (security), stretch/non-free (lts) | 3.20181128.1~deb9u2 | vulnerable |
| buster/non-free (security), buster/non-free | 3.20230719.1~deb10u1 | vulnerable |
| bullseye/non-free | 3.20240820.1~deb11u1 | fixed |
| bullseye/non-free (security) | 3.20230719.1~deb11u1 | vulnerable |
| bookworm/non-free-firmware | 3.20240820.1~deb12u1 | fixed |
| bookworm/non-free-firmware (security) | 3.20230719.1~deb12u1 | vulnerable |
| sid/non-free-firmware, trixie/non-free-firmware | 3.20240820.1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
https://lore.kernel.org/all/20240820182655.42311-1-john.allen@amd.com/
[buster] - amd64-microcode <postponed> (Follow next point release)
[stretch] - amd64-microcode <postponed> (Follow next point release)
[jessie] - amd64-microcode <postponed> (Follow next point release)