Critical severity · published Aug 13, 2024
CVE-2023-20591
Improper re-initialization of IOMMU during the DRTM event may permit an untrusted platform configuration to persist, allowing an attacker to read or modify hypervisor memory,…
10.0
CVSS
0.3%
EPSS
No
On KEV
Description
Improper re-initialization of IOMMU during the DRTM event
may permit an untrusted platform configuration to persist, allowing an attacker
to read or modify hypervisor memory, potentially resulting in loss of
confidentiality, integrity, and availability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AE
AMD EPYC™ 7003 Series Processors · AMD
All versions, or not specified · source: vendor
AE
AMD EPYC™ 9004 Series Processors · AMD
All versions, or not specified · source: vendor
AE
AMD EPYC™ Embedded 7003 Series Processors · AMD
All versions, or not specified · source: vendor
AE
AMD EPYC™ Embedded 9003 Series Processors · AMD
All versions, or not specified · source: vendor
E7
Epyc 7203 Firmware · Amd
before milanpi_1.0.0.b · source: NVD
E7
Epyc 7203p Firmware · Amd
before milanpi_1.0.0.b · source: NVD
E7
Epyc 72f3 Firmware · Amd
before milanpi_1.0.0.b · source: NVD
E7
Epyc 7303 Firmware · Amd
before milanpi_1.0.0.b · source: NVD
E7
Epyc 7303p Firmware · Amd
before milanpi_1.0.0.b · source: NVD
E7
Epyc 7313 Firmware · Amd
before milanpi_1.0.0.b · source: NVD
E7
Epyc 7313p Firmware · Amd
before milanpi_1.0.0.b · source: NVD
E7
Epyc 7343 Firmware · Amd
before milanpi_1.0.0.b · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-20591
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-20591
Vendor Advisory
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
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