qh_echo in Nagios Core 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attackers to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.
The product dereferences a pointer that it expects to be valid but is NULL.
| Link | Tags |
|---|---|
| https://knowledge.opsview.com/v5.4/docs/whats-new | third party advisory |
| https://gist.github.com/fakhrizulkifli/87cf1c1ad403b4d40a86d90c9c9bf7ab | third party advisory exploit |
| https://www.exploit-db.com/exploits/45082/ | third party advisory vdb entry exploit |
| https://knowledge.opsview.com/v5.3/docs/whats-new | third party advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00014.html | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00022.html | vendor advisory |