Description
Stack-based buffer overflow in the cmd_submitf function in cgi/cmd.c in Nagios Core, possibly 4.0.3rc1 and earlier, and Icinga before 1.8.6, 1.9 before 1.9.5, and 1.10 before 1.10.3 allows remote attackers to cause a denial of service (segmentation fault) via a long message to cmd.cgi.
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 8 | nagios3 | 3.5.1.dfsg-2+deb8u1 | DLA-1615-1 |
| Debian 7 | icinga | 1.7.1-7 | DSA-2956-1 |
| Debian 7 | nagios3 | 3.4.1-3+deb7u2 | DLA-461-1 |
| Debian 6.0 | icinga | 1.0.2-2+squeeze2 | DLA-60-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | nagios3 | 3.5.1.dfsg-2.1ubuntu1.1 | USN-3253-1 |
| Ubuntu 14.04 LTS | nagios3 | 3.5.1-1ubuntu1.1 | USN-3253-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | nagios | 4.4.6-2.5 | openSUSE-SU-2024:11073-1 |
Advisories 6
- DLA-461-1 nagios3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-60-1 icinga - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1615-1 nagios3 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2956-1 icinga - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3253-1 nagios3 vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:11073-1 nagios-4.4.6-2.5 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- openSUSE-SU-2014:0516 vendor-advisory
- https://dev.icinga.org/issues/5434
- https://www.icinga.org/2014/02/11/bugfix-releases-1-10-3-1-9-5-1-8-6
- https://bugzilla.redhat.com/show_bug.cgi?id=1066578
- 65605 vdb-entry
- [debian-lts-announce] 20181224 [SECURITY] [DLA 1615-1] nagios3 security update mailing-list
- 57024 third-party-advisory