CVE-2021-26342

In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7763:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7713p:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7713:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7663:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7643:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_75f3:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7543p:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7543:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7513:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7453:-:*:*:*:*:*:*:*

Configuration 11 (hide)

AND
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_74f3:-:*:*:*:*:*:*:*

Configuration 12 (hide)

AND
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7443p:-:*:*:*:*:*:*:*

Configuration 13 (hide)

AND
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7443:-:*:*:*:*:*:*:*

Configuration 14 (hide)

AND
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7413:-:*:*:*:*:*:*:*

Configuration 15 (hide)

AND
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:*

Configuration 16 (hide)

AND
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:*

Configuration 17 (hide)

AND
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:*

Configuration 18 (hide)

AND
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:*

Configuration 19 (hide)

AND
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:*

Configuration 20 (hide)

AND
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7773x:-:*:*:*:*:*:*:*

Configuration 21 (hide)

AND
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7473x:-:*:*:*:*:*:*:*

Configuration 22 (hide)

AND
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7573x:-:*:*:*:*:*:*:*

Configuration 23 (hide)

AND
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7373x:-:*:*:*:*:*:*:*

Configuration 24 (hide)

AND
cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7001:-:*:*:*:*:*:*:*

Configuration 25 (hide)

AND
cpe:2.3:o:amd:epyc_7251_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7251:-:*:*:*:*:*:*:*

Configuration 26 (hide)

AND
cpe:2.3:o:amd:epyc_7261_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7261:-:*:*:*:*:*:*:*

Configuration 27 (hide)

AND
cpe:2.3:o:amd:epyc_7281_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7281:-:*:*:*:*:*:*:*

Configuration 28 (hide)

AND
cpe:2.3:o:amd:epyc_7301_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7301:-:*:*:*:*:*:*:*

Configuration 29 (hide)

AND
cpe:2.3:o:amd:epyc_7351_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7351:-:*:*:*:*:*:*:*

Configuration 30 (hide)

AND
cpe:2.3:o:amd:epyc_7351p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7351p:-:*:*:*:*:*:*:*

Configuration 31 (hide)

AND
cpe:2.3:o:amd:epyc_7371_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7371:-:*:*:*:*:*:*:*

Configuration 32 (hide)

AND
cpe:2.3:o:amd:epyc_7401_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7401:-:*:*:*:*:*:*:*

Configuration 33 (hide)

AND
cpe:2.3:o:amd:epyc_7401p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7401p:-:*:*:*:*:*:*:*

Configuration 34 (hide)

AND
cpe:2.3:o:amd:epyc_7451_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7451:-:*:*:*:*:*:*:*

Configuration 35 (hide)

AND
cpe:2.3:o:amd:epyc_7501_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7501:-:*:*:*:*:*:*:*

Configuration 36 (hide)

AND
cpe:2.3:o:amd:epyc_7551_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7551:-:*:*:*:*:*:*:*

Configuration 37 (hide)

AND
cpe:2.3:o:amd:epyc_7551p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7551p:-:*:*:*:*:*:*:*

Configuration 38 (hide)

AND
cpe:2.3:o:amd:epyc_7601_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7601:-:*:*:*:*:*:*:*

History

19 May 2022, 20:05

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : 2.1
v3 : 3.3
References (MISC) https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028 - (MISC) https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028 - Vendor Advisory
First Time Amd epyc 7443 Firmware
Amd epyc 7451 Firmware
Amd epyc 7773x Firmware
Amd epyc 72f3
Amd epyc 7401p
Amd epyc 75f3
Amd epyc 7453 Firmware
Amd epyc 7281 Firmware
Amd epyc 7451
Amd epyc 7713p
Amd epyc 7351p
Amd
Amd epyc 7401 Firmware
Amd epyc 7313 Firmware
Amd epyc 7313p Firmware
Amd epyc 7251
Amd epyc 7373x
Amd epyc 7371
Amd epyc 7543p Firmware
Amd epyc 7713p Firmware
Amd epyc 7713 Firmware
Amd epyc 7601
Amd epyc 7343
Amd epyc 7001 Firmware
Amd epyc 7513
Amd epyc 7351
Amd epyc 7343 Firmware
Amd epyc 7261 Firmware
Amd epyc 7551p
Amd epyc 7373x Firmware
Amd epyc 7543 Firmware
Amd epyc 7573x Firmware
Amd epyc 7001
Amd epyc 7301
Amd epyc 7313
Amd epyc 7401p Firmware
Amd epyc 7413 Firmware
Amd epyc 7773x
Amd epyc 7351 Firmware
Amd epyc 7643
Amd epyc 7401
Amd epyc 7551
Amd epyc 7261
Amd epyc 75f3 Firmware
Amd epyc 7713
Amd epyc 7251 Firmware
Amd epyc 7663 Firmware
Amd epyc 7601 Firmware
Amd epyc 7643 Firmware
Amd epyc 7281
Amd epyc 7413
Amd epyc 73f3 Firmware
Amd epyc 7301 Firmware
Amd epyc 7473x Firmware
Amd epyc 7573x
Amd epyc 7543p
Amd epyc 7313p
Amd epyc 72f3 Firmware
Amd epyc 7501 Firmware
Amd epyc 7371 Firmware
Amd epyc 7763 Firmware
Amd epyc 7513 Firmware
Amd epyc 73f3
Amd epyc 7543
Amd epyc 7443p
Amd epyc 74f3 Firmware
Amd epyc 7551 Firmware
Amd epyc 7763
Amd epyc 7473x
Amd epyc 7501
Amd epyc 7443p Firmware
Amd epyc 7453
Amd epyc 7551p Firmware
Amd epyc 74f3
Amd epyc 7351p Firmware
Amd epyc 7663
Amd epyc 7443
CPE cpe:2.3:o:amd:epyc_7281_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7573x:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_74f3:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7301:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7261:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7401_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7351p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7763:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7501:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7443:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7643:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7451:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7401p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7451_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7001:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7551_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7663:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7413:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7301_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7551:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7473x:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7371:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7543p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7773x:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7351:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7501_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7281:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7601_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7543:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7401:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7371_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7251:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7261_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7551p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7601:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7551p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7351_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7401p:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7443p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7713p:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7453:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7713:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7373x:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7513:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_7351p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7251_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc_75f3:-:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo

11 May 2022, 17:20

Type Values Removed Values Added
New CVE

Information

Published : 2022-05-11 17:15

Updated : 2023-12-10 14:22


NVD link : CVE-2021-26342

Mitre link : CVE-2021-26342

CVE.ORG link : CVE-2021-26342


JSON object : View

Products Affected

amd

  • epyc_75f3
  • epyc_7401_firmware
  • epyc_73f3
  • epyc_7373x_firmware
  • epyc_7261
  • epyc_7371_firmware
  • epyc_7501_firmware
  • epyc_7301
  • epyc_7001_firmware
  • epyc_7763_firmware
  • epyc_75f3_firmware
  • epyc_7451_firmware
  • epyc_7773x
  • epyc_74f3_firmware
  • epyc_7313p_firmware
  • epyc_7501
  • epyc_7373x
  • epyc_7763
  • epyc_7343_firmware
  • epyc_7371
  • epyc_7281_firmware
  • epyc_7443p
  • epyc_7601
  • epyc_7351p
  • epyc_7313
  • epyc_7543p
  • epyc_7443_firmware
  • epyc_7251_firmware
  • epyc_7343
  • epyc_7351
  • epyc_7453_firmware
  • epyc_7513
  • epyc_7443
  • epyc_7413
  • epyc_7251
  • epyc_72f3
  • epyc_7413_firmware
  • epyc_7573x_firmware
  • epyc_7663
  • epyc_7453
  • epyc_7313p
  • epyc_7001
  • epyc_7281
  • epyc_7313_firmware
  • epyc_7301_firmware
  • epyc_7401
  • epyc_72f3_firmware
  • epyc_7401p
  • epyc_7513_firmware
  • epyc_7543p_firmware
  • epyc_7473x_firmware
  • epyc_7473x
  • epyc_7643
  • epyc_7551p_firmware
  • epyc_7543_firmware
  • epyc_7401p_firmware
  • epyc_7773x_firmware
  • epyc_7551_firmware
  • epyc_7601_firmware
  • epyc_7351_firmware
  • epyc_7261_firmware
  • epyc_7713p
  • epyc_74f3
  • epyc_7713_firmware
  • epyc_7573x
  • epyc_7713p_firmware
  • epyc_7663_firmware
  • epyc_7351p_firmware
  • epyc_7551
  • epyc_7551p
  • epyc_7713
  • epyc_7643_firmware
  • epyc_7543
  • epyc_73f3_firmware
  • epyc_7443p_firmware
  • epyc_7451