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CVE-2024-23839— Suricata http: heap use after free with http.request_header and http.response_header keywords

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，该漏洞源于如果规则集使用 http.request_header 或 http.response_header 关键字，特制流量可能会导致释放后重用。

CVSS 7.1 · High EPSS 0.78% · P55
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I. Basic Information for CVE-2024-23839

Vulnerability Information
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Vulnerability Title
Suricata http: heap use after free with http.request_header and http.response_header keywords
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 7.0.3, specially crafted traffic can cause a heap use after free if the ruleset uses the http.request_header or http.response_header keyword. The vulnerability has been patched in 7.0.3. To work around the vulnerability, avoid the http.request_header and http.response_header keywords.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
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，该漏洞源于如果规则集使用 http.request_header 或 http.response_header 关键字，特制流量可能会导致释放后重用。
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 >= 7.0.0, < 7.0.3 -

II. Public POCs for CVE-2024-23839

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7573 chars
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III. Intelligence Information for CVE-2024-23839

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Patches & Fixes for CVE-2024-23839 (1)

Vendor Advisories for CVE-2024-23839 (1)

Mailing List Discussions for CVE-2024-23839 (1)

Other References for CVE-2024-23839 (1)

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-2024-23836 7.5 HIGH crafted traffic can cause denial of service
CVE-2024-23837 7.5 HIGH LibHTP unbounded folded header handling leads to denial service
CVE-2024-24568 5.3 MEDIUM Suricata http2: header handling evasion

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-416

V. Comments for CVE-2024-23839

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