Description
Setting SMS media allows to set GSM modem file. Later this file is used as Linux device. But due everything is a file for Linux, it is possible to set another file, e.g. log file and zabbix_server will try to communicate with it as modem. As a result, log file will be broken with AT commands and small part for log file content will be leaked to UI.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zabbix | Zabbix | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | zabbix | 1:7.0.0+dfsg-1 | — |
| Debian 13 | zabbix | 1:7.0.0+dfsg-1 | — |
| Debian 12 | zabbix | No fix yet | — |
| Debian 11 | zabbix | 1:5.0.44+dfsg-1+deb11u1 | DLA-3909-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | zabbix | No fix yet | — |
| Ubuntu 26.04 LTS | zabbix | No fix yet | — |
| Ubuntu 25.10 | zabbix | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | zabbix | No fix yet | — |
| Ubuntu Pro 20.04 LTS | zabbix | No fix yet | — |
| Ubuntu Pro 18.04 LTS | zabbix | No fix yet | — |
| Ubuntu Pro 16.04 LTS | zabbix | No fix yet | — |
| Ubuntu Pro 14.04 LTS | zabbix | No fix yet | — |
Advisories 2
- DLA-3909-1 zabbix - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2024-1811 Zabbix: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 1, 2024