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NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package busybox  (opens in a new tab)

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EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-UBUNTU2110-BUSYBOX-1915766
  • published11 Nov 2021
  • disclosed15 Nov 2021
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Introduced: 11 Nov 2021

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

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:21.10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Ubuntu.

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.

References