Release of Invalid Pointer or Reference Affecting busybox package, versions <1:1.35.0-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
1.8% (89th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-BUSYBOX-1913966
  • published11 Nov 2021
  • disclosed15 Nov 2021

Introduced: 11 Nov 2021

CVE-2021-42377  (opens in a new tab)
CWE-763  (opens in a new tab)

How to fix?

Upgrade Debian:unstable busybox to version 1:1.35.0-1 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 Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.

CVSS Scores

version 3.1