CVE-2021-42377
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-42377.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-42377
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1:1.35.0-1 |
| debian | bullseye | affected | |
| debian | forky | fixed | 1:1.35.0-1 |
| debian | sid | fixed | 1:1.35.0-1 |
| debian | trixie | fixed | 1:1.35.0-1 |
| arch | fixed | 1.34.1-1 | |
| sles | affected | |
References
Verify integrity in audit chain (admin only). AS-IS.