Side-channels Related to the x86 PREFETCH Instruction (AMD All supported processors)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.33 % · percentile 26 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- AMD
- NVD status
- Modified
Description
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.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 1.9 | AV:L/AC:M/Au:N/C:P/I:N/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-13124
- GCVE · GCVE-0-2021-26318
Affected configurations (NVD CPE)
cpe:2.3:o:amd:athlon_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:amd:athlon_pro_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:amd:epyc_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:amd:ryzen_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:amd:ryzen_pro_firmware:-:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| AMD · All supported processors | affected unspecified < undefined |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |