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[email protected]CVE-2021-20239

HistoryMay 28, 2021 - 11:15 a.m.

CVE-2021-20239

2021-05-2811:15:08

CWE-822

CWE-119

[email protected]

web.nvd.nist.gov

124

cve-2021-20239

linux kernel

bpf protocol

information leak

local account

confidentiality

nvd

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

3.3 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4.4 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.6%

JSON

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.

Affected configurations

Vulners

NVD

Node

linuxlinux_kernelRange≤5.4.92

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "kernel",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "kernel 5.4.92"
      }
    ]
  }
]