Medium severity · published Nov 14, 2023
CVE-2023-20592
Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU…
6.5
CVSS
1%
EPSS
No
On KEV
Description
Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential loss of guest virtual machine (VM) memory integrity.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
1G
1st Gen AMD EPYC™ Processors · AMD
various · source: vendor
2G
2nd Gen AMD EPYC™ Processors · AMD
various · source: vendor
3G
3rd Gen AMD EPYC™ Processors · AMD
various · source: vendor
E7
Epyc 7001 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7232p Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7251 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7252 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7261 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7262 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7272 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7281 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7282 Firmware · Amd
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-20592
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-20592
Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3005
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