VULNERABILITY INTELLIGENCE

CVE-2024-1930

CVSS score6.5 MEDIUM

EPSS probability0.30%

CISA KEVNot currently listed

Published2024-05-08

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Description

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.

Weakness classification

patrick@puiterwijk.org: CWE-400

Primary references

patrick@puiterwijk.org — Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Mailing List, Third Party Advisory