MEDIUM 5.5 Microsoft

CVE-2021-42376

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.

Microsoft Security Update 2021-Nov: 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.

Affected Products

References

Published: 2021-11-09 · Source: Microsoft · Feed updated: 2026-08-20
This medium severity vulnerability with a CVSS score of 5.5 was published on 2021-11-09 via Microsoft. Affected: cm1 busybox 1.34.1-1 on CBL Mariner 1.0, cbl2 busybox 1.35.0-1 on CBL Mariner 2.0.
vulnfeed aggregates 11644 vulnerabilities from NVD, CISA KEV, Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.