Vulnerability Monitor

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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.

Published

2022-05-11T17:15:09.113

Last Modified

2024-11-21T06:34:37.347

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-203

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	amd	epyc_7001_firmware	-	Yes
Hardware	amd	epyc_7001	-	No
Operating System	amd	epyc_7002_firmware	-	Yes
Hardware	amd	epyc_7002	-	No
Operating System	amd	epyc_7003_firmware	-	Yes
Hardware	amd	epyc_7003	-	No
Operating System	amd	epyc_7232p_firmware	-	Yes
Hardware	amd	epyc_7232p	-	No
Operating System	amd	epyc_7251_firmware	-	Yes
Hardware	amd	epyc_7251	-	No
Operating System	amd	epyc_7252_firmware	-	Yes
Hardware	amd	epyc_7252	-	No
Operating System	amd	epyc_7261_firmware	-	Yes
Hardware	amd	epyc_7261	-	No
Operating System	amd	epyc_7262_firmware	-	Yes
Hardware	amd	epyc_7262	-	No
Operating System	amd	epyc_7272_firmware	-	Yes
Hardware	amd	epyc_7272	-	No
Operating System	amd	epyc_7281_firmware	-	Yes
Hardware	amd	epyc_7281	-	No
Operating System	amd	epyc_7282_firmware	-	Yes
Hardware	amd	epyc_7282	-	No
Operating System	amd	epyc_7301_firmware	-	Yes
Hardware	amd	epyc_7301	-	No
Operating System	amd	epyc_7302_firmware	-	Yes
Hardware	amd	epyc_7302	-	No
Operating System	amd	epyc_7302p_firmware	-	Yes
Hardware	amd	epyc_7302p	-	No
Operating System	amd	epyc_7313_firmware	-	Yes
Hardware	amd	epyc_7313	-	No
Operating System	amd	epyc_7313p_firmware	-	Yes
Hardware	amd	epyc_7313p	-	No
Operating System	amd	epyc_7343_firmware	-	Yes
Hardware	amd	epyc_7343	-	No
Operating System	amd	epyc_7351_firmware	-	Yes
Hardware	amd	epyc_7351	-	No
Operating System	amd	epyc_7351p_firmware	-	Yes
Hardware	amd	epyc_7351p	-	No
Operating System	amd	epyc_7352_firmware	-	Yes
Hardware	amd	epyc_7352	-	No
Operating System	amd	epyc_7371_firmware	-	Yes
Hardware	amd	epyc_7371	-	No
Operating System	amd	epyc_7401_firmware	-	Yes
Hardware	amd	epyc_7401	-	No
Operating System	amd	epyc_7401p_firmware	-	Yes
Hardware	amd	epyc_7401p	-	No
Operating System	amd	epyc_7402_firmware	-	Yes
Hardware	amd	epyc_7402	-	No
Operating System	amd	epyc_7402p_firmware	-	Yes
Hardware	amd	epyc_7402p	-	No
Operating System	amd	epyc_7413_firmware	-	Yes
Hardware	amd	epyc_7413	-	No
Operating System	amd	epyc_7443_firmware	-	Yes
Hardware	amd	epyc_7443	-	No
Operating System	amd	epyc_7443p_firmware	-	Yes
Hardware	amd	epyc_7443p	-	No
Operating System	amd	epyc_7451_firmware	-	Yes
Hardware	amd	epyc_7451	-	No
Operating System	amd	epyc_7452_firmware	-	Yes
Hardware	amd	epyc_7452	-	No
Operating System	amd	epyc_7453_firmware	-	Yes
Hardware	amd	epyc_7453	-	No
Operating System	amd	epyc_7501_firmware	-	Yes
Hardware	amd	epyc_7501	-	No
Operating System	amd	epyc_7502_firmware	-	Yes
Hardware	amd	epyc_7502	-	No
Operating System	amd	epyc_7502p_firmware	-	Yes
Hardware	amd	epyc_7502p	-	No
Operating System	amd	epyc_7513_firmware	-	Yes
Hardware	amd	epyc_7513	-	No
Operating System	amd	epyc_7532_firmware	-	Yes
Hardware	amd	epyc_7532	-	No
Operating System	amd	epyc_7542_firmware	-	Yes
Hardware	amd	epyc_7542	-	No
Operating System	amd	epyc_7543_firmware	-	Yes
Hardware	amd	epyc_7543	-	No
Operating System	amd	epyc_7543p_firmware	-	Yes
Hardware	amd	epyc_7543p	-	No
Operating System	amd	epyc_7551_firmware	-	Yes
Hardware	amd	epyc_7551	-	No
Operating System	amd	epyc_7551p_firmware	-	Yes
Hardware	amd	epyc_7551p	-	No
Operating System	amd	epyc_7552_firmware	-	Yes
Hardware	amd	epyc_7552	-	No
Operating System	amd	epyc_7601_firmware	-	Yes
Hardware	amd	epyc_7601	-	No
Operating System	amd	epyc_7642_firmware	-	Yes
Hardware	amd	epyc_7642	-	No
Operating System	amd	epyc_7643_firmware	-	Yes
Hardware	amd	epyc_7643	-	No
Operating System	amd	epyc_7662_firmware	-	Yes
Hardware	amd	epyc_7662	-	No
Operating System	amd	epyc_7663_firmware	-	Yes
Hardware	amd	epyc_7663	-	No
Operating System	amd	epyc_7702_firmware	-	Yes
Hardware	amd	epyc_7702	-	No
Operating System	amd	epyc_7702p_firmware	-	Yes
Hardware	amd	epyc_7702p	-	No
Operating System	amd	epyc_7713_firmware	-	Yes
Hardware	amd	epyc_7713	-	No
Operating System	amd	epyc_7713p_firmware	-	Yes
Hardware	amd	epyc_7713p	-	No
Operating System	amd	epyc_7742_firmware	-	Yes
Hardware	amd	epyc_7742	-	No
Operating System	amd	epyc_7763_firmware	-	Yes
Hardware	amd	epyc_7763	-	No
Operating System	amd	epyc_embedded_3101_firmware	-	Yes
Hardware	amd	epyc_embedded_3101	-	No
Operating System	amd	epyc_embedded_3151_firmware	-	Yes
Hardware	amd	epyc_embedded_3151	-	No
Operating System	amd	epyc_embedded_3201_firmware	-	Yes
Hardware	amd	epyc_embedded_3201	-	No
Operating System	amd	epyc_embedded_3251_firmware	-	Yes
Hardware	amd	epyc_embedded_3251	-	No
Operating System	amd	epyc_embedded_3255_firmware	-	Yes
Hardware	amd	epyc_embedded_3255	-	No
Operating System	amd	epyc_embedded_3351_firmware	-	Yes
Hardware	amd	epyc_embedded_3351	-	No
Operating System	amd	epyc_embedded_3451_firmware	-	Yes
Hardware	amd	epyc_embedded_3451	-	No
Operating System	amd	epyc_embedded_7232p_firmware	-	Yes
Hardware	amd	epyc_embedded_7232p	-	No
Operating System	amd	epyc_embedded_7251_firmware	-	Yes
Hardware	amd	epyc_embedded_7251	-	No
Operating System	amd	epyc_embedded_7252_firmware	-	Yes
Hardware	amd	epyc_embedded_7252	-	No
Operating System	amd	epyc_embedded_7261_firmware	-	Yes
Hardware	amd	epyc_embedded_7261	-	No
Operating System	amd	epyc_embedded_7262_firmware	-	Yes
Hardware	amd	epyc_embedded_7262	-	No
Operating System	amd	epyc_embedded_7272_firmware	-	Yes
Hardware	amd	epyc_embedded_7272	-	No
Operating System	amd	epyc_embedded_7281_firmware	-	Yes
Hardware	amd	epyc_embedded_7281	-	No
Operating System	amd	epyc_embedded_7282_firmware	-	Yes
Hardware	amd	epyc_embedded_7282	-	No
Operating System	amd	epyc_embedded_7301_firmware	-	Yes
Hardware	amd	epyc_embedded_7301	-	No
Operating System	amd	epyc_embedded_7302_firmware	-	Yes
Hardware	amd	epyc_embedded_7302	-	No
Operating System	amd	epyc_embedded_7302p_firmware	-	Yes
Hardware	amd	epyc_embedded_7302p	-	No
Operating System	amd	epyc_embedded_7351_firmware	-	Yes
Hardware	amd	epyc_embedded_7351	-	No
Operating System	amd	epyc_embedded_7352_firmware	-	Yes
Hardware	amd	epyc_embedded_7352	-	No
Operating System	amd	epyc_embedded_735p_firmware	-	Yes
Hardware	amd	epyc_embedded_735p	-	No
Operating System	amd	epyc_embedded_7371_firmware	-	Yes
Hardware	amd	epyc_embedded_7371	-	No
Operating System	amd	epyc_embedded_7401_firmware	-	Yes
Hardware	amd	epyc_embedded_7401	-	No
Operating System	amd	epyc_embedded_7402_firmware	-	Yes
Hardware	amd	epyc_embedded_7402	-	No
Operating System	amd	epyc_embedded_7402p_firmware	-	Yes
Hardware	amd	epyc_embedded_7402p	-	No
Operating System	amd	epyc_embedded_740p_firmware	-	Yes
Hardware	amd	epyc_embedded_740p	-	No
Operating System	amd	epyc_embedded_7451_firmware	-	Yes
Hardware	amd	epyc_embedded_7451	-	No
Operating System	amd	epyc_embedded_7452_firmware	-	Yes
Hardware	amd	epyc_embedded_7452	-	No
Operating System	amd	epyc_embedded_7501_firmware	-	Yes
Hardware	amd	epyc_embedded_7501	-	No
Operating System	amd	epyc_embedded_7502_firmware	-	Yes
Hardware	amd	epyc_embedded_7502	-	No
Operating System	amd	epyc_embedded_7502p_firmware	-	Yes
Hardware	amd	epyc_embedded_7502p	-	No
Operating System	amd	epyc_embedded_7532_firmware	-	Yes
Hardware	amd	epyc_embedded_7532	-	No
Operating System	amd	epyc_embedded_7542_firmware	-	Yes
Hardware	amd	epyc_embedded_7542	-	No
Operating System	amd	epyc_embedded_7551_firmware	-	Yes
Hardware	amd	epyc_embedded_7551	-	No
Operating System	amd	epyc_embedded_7552_firmware	-	Yes
Hardware	amd	epyc_embedded_7552	-	No
Operating System	amd	epyc_embedded_755p_firmware	-	Yes
Hardware	amd	epyc_embedded_755p	-	No
Operating System	amd	epyc_embedded_7601_firmware	-	Yes
Hardware	amd	epyc_embedded_7601	-	No
Operating System	amd	epyc_embedded_7642_firmware	-	Yes
Hardware	amd	epyc_embedded_7642	-	No
Operating System	amd	epyc_embedded_7662_firmware	-	Yes
Hardware	amd	epyc_embedded_7662	-	No
Operating System	amd	epyc_embedded_7702_firmware	-	Yes
Hardware	amd	epyc_embedded_7702	-	No
Operating System	amd	epyc_embedded_7702p_firmware	-	Yes
Hardware	amd	epyc_embedded_7702p	-	No
Operating System	amd	epyc_embedded_7742_firmware	-	Yes
Hardware	amd	epyc_embedded_7742	-	No
Operating System	amd	epyc_embedded_7f32_firmware	-	Yes
Hardware	amd	epyc_embedded_7f32	-	No
Operating System	amd	epyc_embedded_7f52_firmware	-	Yes
Hardware	amd	epyc_embedded_7f52	-	No
Operating System	amd	epyc_embedded_7f72_firmware	-	Yes
Hardware	amd	epyc_embedded_7f72	-	No
Operating System	amd	epyc_embedded_7h12_firmware	-	Yes
Hardware	amd	epyc_embedded_7h12	-	No

References

http://www.openwall.com/lists/oss-security/2022/08/08/6 Mailing List, Third Party Advisory ([email protected])
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1033 Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2022/08/08/6 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1033 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)