VDB
ALPINE-CVE-2021-42377
ALPINE-CVE-2021-42377
PUBLISHED
CVSS 9.800000190734863 CRITICAL
An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.
Risk Scores
CVSS v3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.20 | busybox | 0, 0, 0 |
| Alpine:v3.14 | busybox | 0, 0, 0 |
| Alpine:v3.11 | busybox | 0, 0, 0 |
| Alpine:v3.19 | busybox | 0, 0, 0 |
| Alpine:v3.21 | busybox | 0, 0, 0 |
| Alpine:v3.16 | busybox | 0, 0, 0 |
| Alpine:v3.15 | busybox | 0, 0, 0 |
| Alpine:v3.23 | busybox | 0, 0, 0 |
| Alpine:v3.12 | busybox | 0, 0, 0 |
| Alpine:v3.13 | busybox | 0, 0, 0 |
| Alpine:v3.18 | busybox | 0, 0, 0 |
| Alpine:v3.17 | busybox | 0, 0, 0 |
| Alpine:v3.22 | busybox | 0, 0, 0 |
Timeline
- Nov 15, 2021 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch