CVE-2021-42376
MEDIUM5.5EPSS 0.04%Published: 11/15/2021Modified: 12/3/2025
Also known as:ALPINE-CVE-2021-42376
Description
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 packages (2)
- Alpine/busyboxfrom 0, < 0
- Debian/busyboxfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |