6.5

CVE-2026-57224

Suricata dhcp: unbounded transactions in unidirectional traffic can lead to resource exhaustion

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::for_direction(), so a sensor that observes only one direction cannot mark the unseen direction inspected or free completed transactions. The RDP parser in rust/src/rdp/rdp.rs has the same direction-state defect. The per-flow transaction list can grow without bound and cleanup repeatedly scans it, causing increasing CPU and memory consumption and eventual denial of service. This issue is fixed in version 8.0.6.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Oisf ≫ Suricata Version >= 8.0.0 < 8.0.6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.344
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 6.5 2.8 3.6
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
Release Notes
https://github.com/OISF/suricata/commit/3f86c56c800392ede5cfaf7a944a431fd8445c55
Patch
https://github.com/OISF/suricata/commit/5af13e3eb06be0387da8703b611c5ce932245c59
Patch
https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1
Patch
https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144
Patch
https://github.com/OISF/suricata/pull/15740
Patch
https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7m
Vendor Advisory
Mitigation
https://redmine.openinfosecfoundation.org/issues/8621
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