Description
Nagios NRPE 3.2.1 has Insufficient Filtering because, for example, nasty_metachars interprets \n as the character \ and the character n (not as the \n newline sequence). This can cause command injection.
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 | nagios-nrpe | 4.0.0-1 | — |
| Debian 13 | nagios-nrpe | 4.0.0-1 | — |
| Debian 12 | nagios-nrpe | 4.0.0-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | nagios-nrpe | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nrpe | 4.0.0-r0 | — |
| Alpine v3.23 | nrpe | 4.0.0-r0 | — |
| Alpine v3.22 | nrpe | 4.0.0-r0 | — |
| Alpine v3.21 | nrpe | 4.0.0-r0 | — |
| Alpine v3.20 | nrpe | 4.0.0-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | nrpe | 4.0.0-r0 | — |
| Alpine v3.18 | nrpe | 4.0.0-r0 | — |
| Alpine v3.16 | nrpe | 4.0.0-r0 | — |
| Alpine v3.15 | nrpe | 4.0.0-r0 | — |
| Alpine v3.14 | nrpe | 4.0.0-r0 | — |
| Alpine v3.13 | nrpe | 4.0.0-r0 | — |