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[email protected]CVE-2021-42386

HistoryNov 15, 2021 - 9:15 p.m.

CVE-2021-42386

2021-11-1521:15:08

CWE-416

[email protected]

web.nvd.nist.gov

162

cve-2021-42386

use-after-free

busybox

awk

denial of service

code execution

nvd

6.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.2 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

61.9%

JSON

A use-after-free in Busybox’s awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the nvalloc function

Affected configurations

NVD

Node

busyboxbusyboxRange1.16.0–1.33.1

Node

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

CPENameOperatorVersion
busybox:busyboxbusyboxle1.33.1

CPE	Name	Operator	Version
busybox:busybox	busybox	le	1.33.1

CNA Affected

[
  {
    "vendor": "busybox",
    "product": "busybox",
    "versions": [
      {
        "version": "unspecified",
        "lessThan": "1.34.0",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]