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cve[email protected]CVE-2021-42382
HistoryNov 15, 2021 - 9:15 p.m.

CVE-2021-42382

2021-11-1521:15:07
CWE-416
web.nvd.nist.gov
119
busybox
awk
use-after-free
denial of service
code execution
cve-2021-42382
nvd

CVSS2

6.5

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

CVSS3

7.2

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

AI Score

7.5

Confidence

High

EPSS

0.002

Percentile

61.8%

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 getvar_s function

Affected configurations

NVD
Node
busyboxbusyboxRange1.26.0–1.33.1
Node
fedoraprojectfedoraMatch33
OR
fedoraprojectfedoraMatch34
VendorProductVersionCPE
busyboxbusyboxcpe:/a:busybox:busybox::::

CNA Affected

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

CVSS2

6.5

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

CVSS3

7.2

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

AI Score

7.5

Confidence

High

EPSS

0.002

Percentile

61.8%