Release of Invalid Pointer or Reference Affecting busybox package, versions [0,1.34.0)


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
2.53% (90th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-BUSYBOX-2327385
  • published29 Dec 2021
  • disclosed15 Nov 2021
  • creditUnknown

Introduced: 15 Nov 2021

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

How to fix?

Upgrade busybox to version 1.34.0 or higher.

Overview

Affected versions of this package are vulnerable to Release of Invalid Pointer or Reference. 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