CVE-2021-26318

A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:amd:athlon_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:athlon:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:amd:athlon_pro_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:athlon_pro:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:amd:epyc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:amd:ryzen_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:amd:ryzen_pro_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_pro:-:*:*:*:*:*:*:*

History

20 Oct 2021, 18:29

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : 1.9
v3 : 4.7
CPE cpe:2.3:h:amd:ryzen_pro:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:athlon_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_pro_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:epyc:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:athlon:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:athlon_pro:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:athlon_pro_firmware:-:*:*:*:*:*:*:*
References (MISC) https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017 - (MISC) https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1017 - Vendor Advisory
CWE CWE-203

13 Oct 2021, 19:57

Type Values Removed Values Added
New CVE

Information

Published : 2021-10-13 19:15

Updated : 2024-02-04 22:08


NVD link : CVE-2021-26318

Mitre link : CVE-2021-26318

CVE.ORG link : CVE-2021-26318


JSON object : View

Products Affected

amd

  • ryzen_pro_firmware
  • athlon_pro
  • ryzen_firmware
  • ryzen_pro
  • athlon_firmware
  • athlon_pro_firmware
  • epyc
  • athlon
  • ryzen
  • epyc_firmware
CWE
CWE-203

Observable Discrepancy

CWE-208

Observable Timing Discrepancy