Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.8, DNS resource name compression can lead to small DNS messages containing very large hostnames which can be costly to decode, and lead to very large DNS log records. While there are limits in place, they were too generous. The issue has been addressed in Suricata 7.0.8.
https://redmine.openinfosecfoundation.org/issues/7280
https://github.com/OISF/suricata/security/advisories/GHSA-96w4-jqwf-qx2j
https://github.com/OISF/suricata/commit/3a5671739f5b25e5dd973a74ca5fd8ea40e1ae2d
https://github.com/OISF/suricata/commit/37f4c52b22fcdde4adf9b479cb5700f89d00768d
https://github.com/OISF/suricata/commit/19cf0f81335d9f787d587450f7105ad95a648951