VulnerabilityModified
CVE-2021-46744
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
MEDIUM 6.5EPSS 0.33%
Does this matter?
Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.
Description
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 0.33% probability · 26th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- amd/epyc 7001 firmware · amd/epyc 7002 firmware · amd/epyc 7003 firmware · amd/epyc 7232p firmware · amd/epyc 7251 firmware · amd/epyc 7252 firmware · amd/epyc 7261 firmware · amd/epyc 7262 firmware · amd/epyc 7272 firmware · amd/epyc 7281 firmware · amd/epyc 7282 firmware · amd/epyc 7301 firmware · amd/epyc 7302 firmware · amd/epyc 7302p firmware · amd/epyc 7313 firmware · amd/epyc 7313p firmware · amd/epyc 7343 firmware · amd/epyc 7351 firmware · amd/epyc 7351p firmware · amd/epyc 7352 firmware · +40 more
- Source
- psirt@amd.com
References
- http://www.openwall.com/lists/oss-security/2022/08/08/6Mailing List, Third Party Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1033Vendor Advisory
- http://www.openwall.com/lists/oss-security/2022/08/08/6Mailing List, Third Party Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1033Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.