CVE catalog
CVE-2021-40084
opensysusers: CVE-2021-40084
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.93% · Oct 25, 2026
opensysusers through 0.6 does not safely use eval on files in sysusers.d that may contain shell metacharacters. For example, it allows command execution via a crafted GECOS field whereas systemd-sysusers (a program with the same specification) does not do that.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | opensysusers | sid | 0.7.5-1 | fixed |
| Debian | opensysusers | forky | 0.7.5-1 | fixed |
| Debian | opensysusers | trixie | 0.7.3-5 | fixed |
| Debian | opensysusers | bookworm | 0.7.3-2 | fixed |
| Ubuntu | opensysusers | 20.04 | 0.5.1-1 | vulnerable |
| Ubuntu | opensysusers | 22.04 | 0.6-2 | vulnerable |
| Ubuntu | opensysusers | 22.04 | 0.6-3 | vulnerable |
| Ubuntu | opensysusers | 24.04 | 0.7.3-2 | vulnerable |
| Ubuntu | opensysusers | 25.10 | 0.7.3-4.1 | vulnerable |
| Ubuntu | opensysusers | 25.10 | 0.7.3-5 | vulnerable |
| Ubuntu | opensysusers | 26.04 | 0.7.3-5 | vulnerable |
| Ubuntu | opensysusers | 26.04 | 0.7.3-5.1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | opensysusers | source | sid | 0.6-3 | not yet assigned | Not reported | [992058] |
| Debian | opensysusers | source | forky | 0.6-3 | not yet assigned | Not reported | [992058] |
| Debian | opensysusers | source | trixie | 0.6-3 | not yet assigned | Not reported | [992058] |
| Debian | opensysusers | source | bookworm | 0.6-3 | not yet assigned | Not reported | [992058] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [opensysusers]Fixed
Details (2)
0.7.3-2· all · bookwormFixed · Fixed:
0.6-3dsa · opensysusers · debian · bookworm; dsa · opensysusers · debian · 12
0.7.3-2· all · bookwormFixed · Fixed:
0.6-3dsa · opensysusers · debian · bookworm; dsa · opensysusers · debian · 12
[Debian 13 (Trixie)]
- [opensysusers]Fixed
Details (2)
0.7.3-5· all · trixieFixed · Fixed:
0.6-3dsa · opensysusers · debian · 13
0.7.3-5· all · trixieFixed · Fixed:
0.6-3dsa · opensysusers · debian · 13
Observed: