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CVE-2024-55629— Suricata generic detection bypass using TCP urgent support

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Open Information Security基金会的一个网络IDS、IPS和NSM引擎。 Suricata 7.0.8之前版本存在安全漏洞，该漏洞源于带有 TCP 紧急数据（带外数据）的 TCP 流可能会导致 Suricata 分析数据的方式与 TCP 端点的应用程序不同。

CVSS 7.5 · High EPSS 0.54% · P44
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I. Basic Information for CVE-2024-55629

Vulnerability Information
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Vulnerability Title
Suricata generic detection bypass using TCP urgent support
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 7.0.8, TCP streams with TCP urgent data (out of band data) can lead to Suricata analyzing data differently than the applications at the TCP endpoints, leading to possible evasions. Suricata 7.0.8 includes options to allow users to configure how to handle TCP urgent data. In IPS mode, you can use a rule such as drop tcp any any -> any any (sid:1; tcp.flags:U*;) to drop all the packets with urgent flag set.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
端点特性的不完整模型
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 7.0.8之前版本存在安全漏洞，该漏洞源于带有 TCP 紧急数据（带外数据）的 TCP 流可能会导致 Suricata 分析数据的方式与 TCP 端点的应用程序不同。
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 < 7.0.8 -

II. Public POCs for CVE-2024-55629

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8966 chars
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POC zip download
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III. Intelligence Information for CVE-2024-55629

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Patches & Fixes for CVE-2024-55629 (2)

Vendor Advisories for CVE-2024-55629 (1)

Other References for CVE-2024-55629 (1)

Same Patch Batch · OISF · 2025-01-06 · 5 CVEs total

CVE-2024-55628 7.5 HIGH Suricata oversized resource names utilizing DNS name compression can lead to resource star
CVE-2024-55605 7.5 HIGH Suricata allows stack overflow in transforms
CVE-2024-55627 5.9 MEDIUM Suricata segfault on StreamingBufferSlideToOffsetWithRegions
CVE-2024-55626 3.3 LOW Suricata oversized bpf file can lead to buffer overflow

IV. Related Vulnerabilities

Same product: suricata
Same vendor: OISF
Same weakness: CWE-437

V. Comments for CVE-2024-55629

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