Description
An issue was discovered in Icinga 2.x through 2.8.1. By sending specially crafted messages, an attacker can cause a NULL pointer dereference, which can cause the product to crash.
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 | icinga2 | 2.8.4-1 | — |
| Debian 13 | icinga2 | 2.8.4-1 | — |
| Debian 12 | icinga2 | 2.8.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | icinga | No fix yet | — |
| Ubuntu 16.04 LTS | icinga | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | icinga2 | 2.13.1-1.3 | openSUSE-SU-2024:10856-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.7 | icinga2 | 2.8.2-r0 | — |
Advisories 1
- openSUSE-SU-2024:10856-1 icinga2-2.13.1-1.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026