CVE catalog
CVE-2021-38173
btrbk: CVE-2021-38173
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.16% · Oct 25, 2026
Btrbk before 0.31.2 allows command execution because of the mishandling of remote hosts filtering SSH commands using ssh_filter_btrbk.sh in authorized_keys.
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 | btrbk | sid | 0.32.6-2 | fixed |
| Debian | btrbk | forky | 0.32.6-2 | fixed |
| Debian | btrbk | trixie | 0.32.6-2 | fixed |
| Debian | btrbk | bookworm | 0.32.5-1 | fixed |
| Ubuntu | btrbk | 18.04 | 0.25.1-1 | vulnerable |
| Ubuntu | btrbk | 18.04 | 0.26.0-1 | vulnerable |
| Ubuntu | btrbk | 20.04 | 0.27.1-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | btrbk | source | sid | 0.27.1-2 | not yet assigned | Not reported | Not reported |
| Debian | btrbk | source | forky | 0.27.1-2 | not yet assigned | Not reported | Not reported |
| Debian | btrbk | source | trixie | 0.27.1-2 | not yet assigned | Not reported | Not reported |
| Debian | btrbk | source | bookworm | 0.27.1-2 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [btrbk]Unknown
Details (2)
0.32.5-1· all · bookwormFixed · Fixed:
0.27.1-2dsa · btrbk · debian · bookworm; dsa · btrbk · debian · 12
0.32.5-1· all · bookwormFixed · Fixed:
0.27.1-2dsa · btrbk · debian · bookworm; dsa · btrbk · debian · 12
[Debian 13 (Trixie)]
- [btrbk]Unknown
Details (2)
0.32.6-2· all · trixieFixed · Fixed:
0.27.1-2dsa · btrbk · debian · 13
0.32.6-2· all · trixieFixed · Fixed:
0.27.1-2dsa · btrbk · debian · 13
Observed: