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CVE-2024-32663— Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation

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 6.0.19版本至7.0.5之前版本存在安全漏洞，该漏洞源于少量 HTTP/2 流量可能会导致 Suricata 使用大量内存。

CVSS 7.5 · High EPSS 0.96% · P59

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-32663

Vulnerability Information
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Vulnerability Title
Suricata 's http2 parser contains an improper compressed header handling 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. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).
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
未加控制的资源消耗(资源穷尽)
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 6.0.19版本至7.0.5之前版本存在安全漏洞，该漏洞源于少量 HTTP/2 流量可能会导致 Suricata 使用大量内存。
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, <= 7.0.4 -

II. Public POCs for CVE-2024-32663

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10866 chars
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III. Intelligence Information for CVE-2024-32663

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Patches & Fixes for CVE-2024-32663 (5)

Vendor Advisories for CVE-2024-32663 (1)

Other References for CVE-2024-32663 (1)

Same Patch Batch · OISF · 2024-05-07 · 3 CVEs total

CVE-2024-32664 5.3 MEDIUM Suricata's base64 contains an out of bounds write
CVE-2024-32867 5.3 MEDIUM Suricata's defrag contains various issues leading to policy bypass

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-400

V. Comments for CVE-2024-32663

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