NULL Pointer Dereference Affecting busybox package, versions <1.35.0-150400.3.3.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-SLES154-BUSYBOX-3123842
  • published17 Nov 2022
  • disclosed11 Nov 2022

Introduced: 11 Nov 2022

CVE-2021-42376  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 busybox to version 1.35.0-150400.3.3.1 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 SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.

CVSS Base Scores

version 3.1