CVE-2024-38535: suricata DoS — Fix

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Suricata can run out of memory when parsing crafted HTTP/2 traffic. Upgrade to 6.0.20 or 7.0.6.

Is your site exposed to CVE-2024-38535?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-770 CWE-770

Affected Products

Vendor	Product	Versions
oisf	suricata	< 6.0.20
oisf	suricata	7.0.0 — 7.0.6

References

Advisories & Patches

https://github.com/OISF/suricata/commit/62d5cac1b8483d5f9d2b79833a4e59f5d80129b7 https://github.com/OISF/suricata/commit/c82fa5ca0d1ce0bd8f936e0b860707a6571373b2 https://github.com/OISF/suricata/security/advisories/GHSA-cg8j-7mwm-v563 https://github.com/OISF/suricata/commit/62d5cac1b8483d5f9d2b79833a4e59f5d80129b7 https://github.com/OISF/suricata/commit/c82fa5ca0d1ce0bd8f936e0b860707a6571373b2 https://github.com/OISF/suricata/security/advisories/GHSA-cg8j-7mwm-v563

Other References

https://redmine.openinfosecfoundation.org/issues/7104 https://redmine.openinfosecfoundation.org/issues/7105 https://redmine.openinfosecfoundation.org/issues/7112 https://redmine.openinfosecfoundation.org/issues/7104 https://redmine.openinfosecfoundation.org/issues/7105 https://redmine.openinfosecfoundation.org/issues/7112

Frequently Asked Questions

What is CVE-2024-38535? +

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Suricata can run out of memory when parsing crafted HTTP/2 traffic. Upgrade to 6.0.20 or 7.0.6. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-38535? +

CVE-2024-38535 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-38535? +

CVE-2024-38535 affects products from oisf, specifically: suricata. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-38535? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-39313

mcp-framework is a framework for building Model Context Protocol (MCP) servers. In versions 0.2.21 and below, the readRequestBody() function in …

CVE-2026-35469

spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser …

CVE-2026-39803

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated remote denial of service via memory exhaustion. …

CVE-2026-39804

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated remote denial of service via memory exhaustion …

CVE-2026-32688

Allocation of Resources Without Limits or Throttling vulnerability in elixir-plug plug_cowboy allows unauthenticated remote denial of service via atom table …

CVE-2026-10573

A denial-of-service security issue exists in 1734 POINT I/O™ module. The security issue stems from improper handling of crafted CIP …

CVE-2024-38535