Medium severity · published Feb 4, 2022
CVE-2020-12966
AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with…
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to leaking guest data by the malicious hypervisor.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
E7
Epyc 7001 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7002 Firmware · Amd
All versions, or not specified · source: NVD
E7
Epyc 7003 Firmware · Amd
before milanpi-sp3_1.0.0.5 · 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
E7
Epyc 72f3 Firmware · Amd
before milanpi-sp3_1.0.0.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12966
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12966
Mailing List
http://www.openwall.com/lists/oss-security/2022/08/08/6
Mitigation
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1013
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