No Limit on Number of Open Sessions / Bad Session Close Behaviour  in dnf5daemon-server before 5.1.17 allows a malicious user to impact Availability via No Limit on Number of Open Sessions.

There is no limit on how many sessions D-Bus clients may create using the `open_session()` D-Bus method. For each session a thread is created in dnf5daemon-server. This spends a couple of hundred megabytes of memory in the process. Further connections will become impossible, likely because no more threads can be spawned by the D-Bus service.

Fedora Project AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Fedora Project CWE-400

Fedora Project https://www.openwall.com/lists/oss-security/2024/03/04/2 [No types assigned]