Vulnerability 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 Score
6.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Amd | Epyc 7001 Firmware | - |
| Amd | Epyc 7001 | - |
| Amd | Epyc 7002 Firmware | - |
| Amd | Epyc 7002 | - |
| Amd | Epyc 7003 Firmware | - |
| Amd | Epyc 7003 | - |
| Amd | Epyc 7232P Firmware | - |
| Amd | Epyc 7232P | - |
| Amd | Epyc 7251 Firmware | - |
| Amd | Epyc 7251 | - |
| Amd | Epyc 7252 Firmware | - |
| Amd | Epyc 7252 | - |
| Amd | Epyc 7261 Firmware | - |
| Amd | Epyc 7261 | - |
| Amd | Epyc 7262 Firmware | - |
| Amd | Epyc 7262 | - |
| Amd | Epyc 7272 Firmware | - |
| Amd | Epyc 7272 | - |
| Amd | Epyc 7281 Firmware | - |
| Amd | Epyc 7281 | - |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2022/08/08/6Mailing ListThird 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 ListThird Party Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1033Vendor Advisory
FAQ
What is CVE-2021-46744?
CVE-2021-46744 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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.
How severe is CVE-2021-46744?
CVE-2021-46744 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-46744?
Check the references section above for vendor advisories and patch information. Affected products include: Amd Epyc 7001 Firmware, Amd Epyc 7001, Amd Epyc 7002 Firmware, Amd Epyc 7002, Amd Epyc 7003 Firmware.