Vulnerability Monitor

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CVE-2021-26340

A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).

Published

2021-12-10T22:15:08.323

Last Modified

2024-11-21T05:56:08.917

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.4 (HIGH)

CVSSv2 Vector

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

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

3.9

Impact Score

4.9

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo
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_7232p_firmware - Yes
Hardware amd epyc_7232p - No
Operating System amd epyc_7251_firmware - Yes
Hardware amd epyc_7251 - No
Operating System amd epyc_7261_firmware - Yes
Hardware amd epyc_7261 - No
Operating System amd epyc_7252_firmware - Yes
Hardware amd epyc_7252 - No
Operating System amd epyc_74f3_firmware - Yes
Hardware amd epyc_74f3 - 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_75f3_firmware - Yes
Hardware amd epyc_75f3 - 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_7702p_firmware - Yes
Hardware amd epyc_7702p - No
Operating System amd epyc_7702_firmware - Yes
Hardware amd epyc_7702 - 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_7f32_firmware - Yes
Hardware amd epyc_7f32 - No
Operating System amd epyc_7f52_firmware - Yes
Hardware amd epyc_7f52 - 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_72f3_firmware - Yes
Hardware amd epyc_72f3 - No
Operating System amd epyc_7302_firmware - Yes
Hardware amd epyc_7302 - No
Operating System amd epyc_7301_firmware - Yes
Hardware amd epyc_7301 - 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_73f3_firmware - Yes
Hardware amd epyc_73f3 - 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_7443p_firmware - Yes
Hardware amd epyc_7443p - No
Operating System amd epyc_7443_firmware - Yes
Hardware amd epyc_7443 - 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_7f72_firmware - Yes
Hardware amd epyc_7f72 - No
Operating System amd epyc_7h12_firmware - Yes
Hardware amd epyc_7h12 - 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_7601_firmware - Yes
Hardware amd epyc_embedded_7601 - No
Operating System amd epyc_embedded_7551_firmware - Yes
Hardware amd epyc_embedded_7551 - No
Operating System amd epyc_embedded_7501_firmware - Yes
Hardware amd epyc_embedded_7501 - No
Operating System amd epyc_embedded_7451_firmware - Yes
Hardware amd epyc_embedded_7451 - No
Operating System amd epyc_embedded_7401_firmware - Yes
Hardware amd epyc_embedded_7401 - No
Operating System amd epyc_embedded_7371_firmware - Yes
Hardware amd epyc_embedded_7371 - No
Operating System amd epyc_embedded_7351_firmware - Yes
Hardware amd epyc_embedded_7351 - No
Operating System amd epyc_embedded_7301_firmware - Yes
Hardware amd epyc_embedded_7301 - No
Operating System amd epyc_embedded_7281_firmware - Yes
Hardware amd epyc_embedded_7281 - No
Operating System amd epyc_embedded_7261_firmware - Yes
Hardware amd epyc_embedded_7261 - No
Operating System amd epyc_embedded_7251_firmware - Yes
Hardware amd epyc_embedded_7251 - No
Operating System amd epyc_embedded_755p_firmware - Yes
Hardware amd epyc_embedded_755p - No
Operating System amd epyc_embedded_740p_firmware - Yes
Hardware amd epyc_embedded_740p - No
Operating System amd epyc_embedded_735p_firmware - Yes
Hardware amd epyc_embedded_735p - No
Operating System amd epyc_embedded_7h12_firmware - Yes
Hardware amd epyc_embedded_7h12 - No
Operating System amd epyc_embedded_7742_firmware - Yes
Hardware amd epyc_embedded_7742 - No
Operating System amd epyc_embedded_7702_firmware - Yes
Hardware amd epyc_embedded_7702 - No
Operating System amd epyc_embedded_7662_firmware - Yes
Hardware amd epyc_embedded_7662 - No
Operating System amd epyc_embedded_7642_firmware - Yes
Hardware amd epyc_embedded_7642 - No
Operating System amd epyc_embedded_7552_firmware - Yes
Hardware amd epyc_embedded_7552 - No
Operating System amd epyc_embedded_7542_firmware - Yes
Hardware amd epyc_embedded_7542 - No
Operating System amd epyc_embedded_7532_firmware - Yes
Hardware amd epyc_embedded_7532 - No
Operating System amd epyc_embedded_7502_firmware - Yes
Hardware amd epyc_embedded_7502 - No
Operating System amd epyc_embedded_7452_firmware - Yes
Hardware amd epyc_embedded_7452 - No
Operating System amd epyc_embedded_7f72_firmware - Yes
Hardware amd epyc_embedded_7f72 - No
Operating System amd epyc_embedded_7402_firmware - Yes
Hardware amd epyc_embedded_7402 - No
Operating System amd epyc_embedded_7352_firmware - Yes
Hardware amd epyc_embedded_7352 - No
Operating System amd epyc_embedded_7f52_firmware - Yes
Hardware amd epyc_embedded_7f52 - No
Operating System amd epyc_embedded_7302_firmware - Yes
Hardware amd epyc_embedded_7302 - No
Operating System amd epyc_embedded_7282_firmware - Yes
Hardware amd epyc_embedded_7282 - No
Operating System amd epyc_embedded_7272_firmware - Yes
Hardware amd epyc_embedded_7272 - No
Operating System amd epyc_embedded_7f32_firmware - Yes
Hardware amd epyc_embedded_7f32 - No
Operating System amd epyc_embedded_7262_firmware - Yes
Hardware amd epyc_embedded_7262 - No
Operating System amd epyc_embedded_7252_firmware - Yes
Hardware amd epyc_embedded_7252 - No
Operating System amd epyc_embedded_7702p_firmware - Yes
Hardware amd epyc_embedded_7702p - No
Operating System amd epyc_embedded_7502p_firmware - Yes
Hardware amd epyc_embedded_7502p - No
Operating System amd epyc_embedded_7402p_firmware - Yes
Hardware amd epyc_embedded_7402p - No
Operating System amd epyc_embedded_7302p_firmware - Yes
Hardware amd epyc_embedded_7302p - No
Operating System amd epyc_embedded_7232p_firmware - Yes
Hardware amd epyc_embedded_7232p - No
References