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CVE-2024-23836— crafted traffic can cause denial of service

Quick assessment

Affected
OISF suricata
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Suricata是开放信息安全基金会（Open Information Security Foundation，OISF）和其支持的厂商共同开发的一套网络入侵检测系统（IDS）、入侵防御系统（IPS）和网络安全监控引擎，它支持多线程、内置IPv6、可加载预设规则等。 Suricata 7.0.3 版本之前存在安全漏洞。攻击者可以精心设计流量，导致 Suricata 使用远多于所需的 CPU 和内存来处理流量，这可能会导致速度极度减慢和拒绝服务。

CVSS 7.5 · High EPSS 1.16% · P66
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I. Basic Information for CVE-2024-23836

Vulnerability Information
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Vulnerability Title
crafted traffic can cause denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the `stream.reassembly.depth` value helps reduce the severity of the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/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是开放信息安全基金会（Open Information Security Foundation，OISF）和其支持的厂商共同开发的一套网络入侵检测系统（IDS）、入侵防御系统（IPS）和网络安全监控引擎，它支持多线程、内置IPv6、可加载预设规则等。 Suricata 7.0.3 版本之前存在安全漏洞。攻击者可以精心设计流量，导致 Suricata 使用远多于所需的 CPU 和内存来处理流量，这可能会导致速度极度减慢和拒绝服务。
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 < 6.0.16 -

II. Public POCs for CVE-2024-23836

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7652 chars
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III. Intelligence Information for CVE-2024-23836

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Patches & Fixes for CVE-2024-23836 (10)

Vendor Advisories for CVE-2024-23836 (1)

Mailing List Discussions for CVE-2024-23836 (1)

Other References for CVE-2024-23836 (6)

Same Patch Batch · OISF · 2024-02-26 · 5 CVEs total

CVE-2024-23835 7.5 HIGH Suricata's pgsql: memory exhaustion use on record parsing
CVE-2024-23837 7.5 HIGH LibHTP unbounded folded header handling leads to denial service
CVE-2024-23839 7.1 HIGH Suricata http: heap use after free with http.request_header and http.response_header keyw
CVE-2024-24568 5.3 MEDIUM Suricata http2: header handling evasion

IV. Related Vulnerabilities

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

V. Comments for CVE-2024-23836

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