Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2021-10-13T19:15:07.360

Last Modified

2024-11-21T05:56:05.303

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.7 (MEDIUM)

CVSSv2 Vector

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

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

3.4

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-208
  • Type: Primary
    CWE-203
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System amd athlon_firmware - Yes
Hardware amd athlon - No
Operating System amd athlon_pro_firmware - Yes
Hardware amd athlon_pro - No
Operating System amd epyc_firmware - Yes
Hardware amd epyc - No
Operating System amd ryzen_firmware - Yes
Hardware amd ryzen - No
Operating System amd ryzen_pro_firmware - Yes
Hardware amd ryzen_pro - No
References