CVE-2025-29916 – Suricata Large Hash Table Allocation Vulnerability (Denial of Service)

The following table lists the changes that have been made to the
CVE-2025-29916 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Apr. 10, 2025

    Action Type Old Value New Value
    Added Description Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Datasets declared in rules have an option to specify the `hashsize` to use. This size setting isn’t properly limited, so the hash table allocation can be large. Untrusted rules can lead to large memory allocations, potentially leading to denial of service due to resource starvation. This vulnerability is fixed in 7.0.9.
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-770
    Added Reference https://github.com/OISF/suricata/commit/a7713db709b8a0be5fc5e5809ab58e9b14a16e85
    Added Reference https://github.com/OISF/suricata/security/advisories/GHSA-27g3-pmvp-j9cv
    Added Reference https://redmine.openinfosecfoundation.org/issues/7615
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