VDB
ALPINE-CVE-2021-42376
ALPINE-CVE-2021-42376
PUBLISHED
CVSS 5.5 MEDIUM
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.
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | busybox | 0, 1.16.0, 0 |
| Alpine:v3.22 | busybox | 1.16.0, 0, 0 |
| Alpine:v3.21 | busybox | 1.16.0, 0, 0 |
| Alpine:v3.20 | busybox | 1.16.0, 0, 0 |
| Alpine:v3.14 | busybox | 0, 0, 0 |
| Alpine:v3.17 | busybox | 0, 0, 0 |
| Alpine:v3.12 | busybox | 0, 0, 0 |
| Alpine:v3.15 | busybox | 0, 0, 0 |
| Alpine:v3.11 | busybox | 0, 0, 0 |
| Alpine:v3.19 | busybox | 0, 0, 0 |
| Alpine:v3.18 | busybox | 1.16.0, 0, 0 |
| Alpine:v3.13 | busybox | 0, 0, 0 |
| Alpine:v3.16 | busybox | 1.16.0, 0, 0 |
| Alpine:v3.24 | busybox | 1.16.0 |
Timeline
- Nov 15, 2021 CVE Published
- Apr 30, 2026 Distribution Patch
- Jul 8, 2026 CVE Updated