CVE-2021-42375
5.5
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.
How to fix CVE-2021-42375
To remediate CVE-2021-42375, upgrade the affected package to a fixed version below.
- Alpine/busybox—upgrade to 0 or later
- —no fix listed
Is CVE-2021-42375 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0
- from 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 |