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CVE-2025-29916— Suricata datasets: ruleset declared settings can lead to resource starvation

Quick assessment

Affected
OISF suricata
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Suricata是Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata存在安全漏洞，该漏洞源于hashsize设置不当，可能导致拒绝服务。

CVSS 6.2 · Medium EPSS 0.27% · P17
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I. Basic Information for CVE-2025-29916

Vulnerability Information
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Vulnerability Title
Suricata datasets: ruleset declared settings can lead to resource starvation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Suricata 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Suricata是Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata存在安全漏洞，该漏洞源于hashsize设置不当，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OISF suricata < 7.0.9 -

II. Public POCs for CVE-2025-29916

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III. Intelligence Information for CVE-2025-29916

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Same Patch Batch · OISF · 2025-04-10 · 4 CVEs total

CVE-2025-29915 7.5 HIGH Suricata af-packet: defrag option can lead to truncated packets affecting visibility
CVE-2025-29917 6.2 MEDIUM Suricata decode_base64: signature can do large memory allocation
CVE-2025-29918 6.2 MEDIUM Suricata pcre: negated pcr can cause infinite loop

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-770

V. Comments for CVE-2025-29916

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