CVE-2022-4543

2023-01-1115:15:09

CWE-200

CWE-203

[email protected]

web.nvd.nist.gov

192

cve-2022-4543

entrybleed

linux kernel

kpti

kaslr

tlb timing

intel

security vulnerability

nvd

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

5.2 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

A flaw named “EntryBleed” was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.

Affected configurations

NVD

Node

linuxlinux_kernel

CPENameOperatorVersion
linux:linux_kernellinux linux kerneleq*

CPE	Name	Operator	Version
linux:linux_kernel	linux linux kernel	eq	*

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "Linux kernel",
    "versions": [
      {
        "version": "all versions",
        "status": "affected"
      }
    ]
  }
]