NULL Pointer Dereference Affecting busybox-static package, versions <1.34.1-4.9.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-SLES152-BUSYBOXSTATIC-2650513
  • published14 Apr 2022
  • disclosed20 Jan 2022

Introduced: 20 Jan 2022

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

How to fix?

Upgrade SLES:15.2 busybox-static to version 1.34.1-4.9.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox-static package and not the busybox-static package as distributed by SLES. See How to fix? for SLES:15.2 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 Scores

version 3.1