Use After Free Affecting busybox package, versions <1.34.0-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.24% (63rd percentile)

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  • Snyk IDSNYK-ALPINE315-BUSYBOX-1926977
  • published12 Nov 2021
  • disclosed15 Nov 2021

Introduced: 12 Nov 2021

CVE-2021-42382  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Alpine:3.15 busybox to version 1.34.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Alpine. See How to fix? for Alpine:3.15 relevant fixed versions and status.

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

CVSS Scores

version 3.1