CVE-2021-26318

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.

CvssV3 impact

BaseSeverity

MEDIUM

ConfidentialityImpact

HIGH

AttackComplexity

HIGH

Scope

UNCHANGED

AttackVector

LOCAL

AvailabilityImpact

NONE

IntegrityImpact

NONE

PrivilegesRequired

LOW

BaseScore

4.7

VectorString

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Version

3.1

UserInteraction

NONE

CvssV2 impact

AccessComplexity

MEDIUM

ConfidentialityImpact

PARTIAL

AvailabilityImpact

NONE

IntegrityImpact

NONE

BaseScore

1.9

VectorString

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

Version

2.0

AccessVector

LOCAL

Authentication

NONE