CVE-2021-4204

2022-08-2416:15:09

CWE-119

CWE-20

[email protected]

web.nvd.nist.gov

104

cve-2021-4204

linux kernel

ebpf

oob

memory access

improper input validation

local attacker

privilege escalation

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

An out-of-bounds (OOB) memory access flaw was found in the Linux kernel’s eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.

Affected configurations

Vulners

NVD

Node

linuxlinux_kernelRange≤5.8

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

[
  {
    "vendor": "n/a",
    "product": "kernel",
    "versions": [
      {
        "version": "Affects Linux kernel v5.8 or later",
        "status": "affected"
      }
    ]
  }
]