CVE-2021-26320

· MEDIUMModified

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CVSS v3.1

5.5

EPSS

0.18%

Published

Nov 16, 2021

Modified

Nov 21, 2024

Public PoC / Exploit (1)

All weaponized →

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-295CWE-295

Affected Products (114)

amd · epyc_7601_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7601

amd · epyc_7551p_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7551p

amd · epyc_7551_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7551

amd · epyc_7501_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7501

amd · epyc_7451_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7451

amd · epyc_7401_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7401

amd · epyc_7371_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7371

amd · epyc_7351p_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7351p

amd · epyc_7351_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7351

amd · epyc_7301_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7301

amd · epyc_7281_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7281

amd · epyc_7261_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7261

amd · epyc_7251_firmware (up to naplespi-sp3_1.0.0.g)vulnerable

amd · epyc_7251

amd · epyc_7f72_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7f72

amd · epyc_7f52_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7f52

amd · epyc_7f32_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7f32

amd · epyc_7h12_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7h12

amd · epyc_7742_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7742

amd · epyc_7702_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7702

amd · epyc_7702p_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7702p

amd · epyc_7662_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7662

amd · epyc_7642_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7642

amd · epyc_7552_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7552

amd · epyc_7542_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7542

amd · epyc_7532_firmware (up to romepi-sp3_1.0.0.c)vulnerable

amd · epyc_7532

...and 64 more

References (2)

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021

Vendor Advisory

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021

Vendor Advisory

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