CVE-2005-3732
The Internet Key Exchange version 1 (IKEv1) implementation (isakmp_agg.c) in racoon in ipsec...
CVE-2005-3732 is a high vulnerability (CVSS 7.8) in Ipsec-tools, published November 21, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.44%, the 91st percentile. Fixed in ipsec-tools 1:0.5.2-1sarge1.
- Severity
- 7.8 HighCVSS 2.0, NVD
- Exploit chance
- 4.44%EPSS, 91st percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1:0.5.2-1sarge1ipsec-tools +16 more
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.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ipsec-toolsDebian:3.1 | before 1:0.5.2-1sarge1, plus listed versions 1:0.5.2-1 | 1:0.5.2-1sarge1 |
ipsec-toolsRed Hat:enterprise_linux:3::as | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-tools-debuginfoRed Hat:enterprise_linux:3::as | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-toolsRed Hat:enterprise_linux:3::desktop | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-tools-debuginfoRed Hat:enterprise_linux:3::desktop | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-toolsRed Hat:enterprise_linux:3::es | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-tools-debuginfoRed Hat:enterprise_linux:3::es | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-toolsRed Hat:enterprise_linux:3::ws | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-tools-debuginfoRed Hat:enterprise_linux:3::ws | before 0:0.2.5-0.7.rhel3.3 | 0:0.2.5-0.7.rhel3.3 |
ipsec-toolsRed Hat:enterprise_linux:4::as | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
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| Package | Affected | Fixed |
|---|---|---|
ipsec-tools-debuginfoRed Hat:enterprise_linux:4::as | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
ipsec-toolsRed Hat:enterprise_linux:4::desktop | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
ipsec-tools-debuginfoRed Hat:enterprise_linux:4::desktop | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
ipsec-toolsRed Hat:enterprise_linux:4::es | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
ipsec-tools-debuginfoRed Hat:enterprise_linux:4::es | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
ipsec-toolsRed Hat:enterprise_linux:4::ws | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
ipsec-tools-debuginfoRed Hat:enterprise_linux:4::ws | before 0:0.3.3-6.rhel4.1 | 0:0.3.3-6.rhel4.1 |
What each source reports
NVD Score used
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.
- Record
CVE-2005-3732- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2005-3732- Updated
- 2026-11-02
EUVDEUVD-2005-3729No score
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.
- Record
EUVD-2005-3729- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wr7q-9p2g-rv39No score
The Internet Key Exchange version 1 (IKEv1) implementation (isakmp_agg.c) in racoon in ipsec...
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.
- Record
GHSA-wr7q-9p2g-rv39- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
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
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9857
secunia.com/advisories/18616
niscc.gov.uk/niscc/docs/re-20051114-01014.pdf?lang=en
securityfocus.com/bid/15523
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sourceforge.net/mailarchive/forum.php?thread_id=9017454&forum_id=32000
securitytracker.com/id?1015254
debian.org/security/2006/dsa-965
archives.neohapsis.com/archives/bugtraq/2005-12/0161.html
gentoo.org/security/en/glsa/glsa-200512-04.xml
ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp
rhn.redhat.com/errata/RHSA-2006-0267.html
usn.ubuntu.com/221-1
mandriva.com/security/advisories?name=MDKSA-2006:020
vupen.com/english/advisories/2005/2521
novell.com/linux/security/advisories/2005_70_ipsec.html
nvd.nist.gov/vuln/detail/CVE-2005-3732
github.com/advisories/GHSA-wr7q-9p2g-rv39
access.redhat.com/errata/RHSA-2006:0267
redhat.com/security/updates/classification
bugzilla.redhat.com/show_bug.cgi?id=173841
security.access.redhat.com/data/csaf/v2/advisories/2006/rhsa-2006_0267.json
cve.org/CVERecord?id=CVE-2005-3732