---
title: "CVE-2005-3732\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2005-3732?format=md
keywords: index, follow
---

# CVE-2005-3732

Publication date 21 November 2005

Last updated 17 July 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

The Internet Key Exchange version 1 (IKEv1) implementation (isakmp\_agg.c)
in racoon in ipsec-tools before 0.6.3, when running in aggressive mode,
allows remote attackers to cause a denial of service (null dereference and
crash) via crafted IKE packets, as demonstrated by the PROTOS ISAKMP Test
Suite for IKEv1.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ipsec-tools | 7.04 feisty | Fixed 0.6.6-3ubuntu3 |
| 6.10 edgy | Fixed 0.6.6-1ubuntu1.1 |
| 6.06 LTS dapper | Fixed 0.6.5-4ubuntu1.1 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3732)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2005-3732)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2005-3732)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2005-3732)

### Related Ubuntu Security Notices (USN)

+ [USN-221-1](https://usn.ubuntu.com/USN-221-1)
+ racoon vulnerability
+ 1 December 2005

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2005-3732>