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CVE-2025-61909

CVE-2025-61909 · Icinga 2 signals sent as root to processes based on PID file written by the Icinga 2 daemon user

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.

CVSS 4.0 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • icinga2

    Versions
    • >=2.10.0, < 2.13.13: Affected
    • >=2.14.0, < 2.14.7: Affected
    • >=2.15.0, < 2.15.1: Affected

    No fix published

  • icinga2 Debian:12

    Versions
    • 2.13.6-2
    • 2.13.6-2+deb12u1
    • 2.13.6-2+deb12u2
    • 2.13.7-1
    • 2.13.7-1~exp1
    • 2.13.8-1
    • 2.14.0-1~exp1
    • 2.14.1-1
    • 2.14.2-1
    • 2.14.2-1+loong64
    • 2.14.3-1
    • 2.14.4-1
    • 2.14.5-1
    • 2.14.6-1
    • 2.15.0-1
    • 2.15.0-1~exp1
    • 2.15.1-1
    • 2.15.2-1
    • 2.15.2-2
    • 2.16.0-1
    • 2.16.0-2
    • 2.16.0-3~exp1
    • 2.16.0-3~exp2
    • 2.16.0-3~exp3
    • 2.16.0-3~exp4
    • 2.16.1-1
    • 2.16.1-1~exp1
    • 2.16.2-1
    • 2.16.2-2
    • 2.16.3-1
    • 2.16.4-1
    • 2.16.5-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • icinga2 Debian:13

    Versions
    • 2.14.6-1
    Affected ranges
    • ECOSYSTEM: < 2.14.6-1+deb13u1

    Update to 2.14.6-1+deb13u1

  • icinga2 Debian:14

    Versions
    • 2.14.6-1
    • 2.15.0-1
    • 2.15.0-1~exp1
    Affected ranges
    • ECOSYSTEM: < 2.15.1-1

    Update to 2.15.1-1

  • icinga2 Ubuntu:16.04:LTS

    Versions
    • 2.3.8-1build1
    • 2.3.11-1
    • 2.4.0-1
    • 2.4.1-1
    • 2.4.1-2
    • 2.4.1-2ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • icinga2 Ubuntu:18.04:LTS

    Versions
    • 2.7.0-1
    • 2.8.1-0ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • icinga2 Ubuntu:20.04:LTS

    Versions
    • 2.10.5-1build1
    • 2.11.2-1
    • 2.11.2-1ubuntu1
    • 2.11.2-1ubuntu2
    • 2.11.2-1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • icinga2 Ubuntu:22.04:LTS

    Versions
    • 2.12.3-1
    • 2.13.1-1
    • 2.13.2-1
    • 2.13.2-1build1
    • 2.13.2-1build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • icinga2 Ubuntu:24.04:LTS

    Versions
    • 2.13.8-1
    • 2.14.1-1
    • 2.14.2-1
    • 2.14.2-1build1
    • 2.14.2-1build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • icinga2 Ubuntu:25.10

    Versions
    • 2.14.5-1
    • 2.14.6-1
    • 2.15.0-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • icinga2 Ubuntu:26.04:LTS

    Versions
    • 2.15.0-1
    • 2.15.1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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