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Fencer Vulns
high 7.8

CVE-2005-3732 json

The Internet Key Exchange version 1 (IKEv1) implementation (isakmp_agg.c) in racoon in ipsec-tools before 0.6.3, when running in aggressive…

published 2005-11-21 20 y ago modified 2026-06-16 4 mo ago also EUVD-2005-3729

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.4%
EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

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.

Patch / fix

  • ipsec-tools RHEL 3 0.2.5-0.7.rhel3.3
  • ipsec-tools RHEL 4 0.3.3-6.rhel4.1

red hat advisories RHSA-2006:0267

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2005-3732 updated

security flaw

  • Red Hat Desktop version 3 ipsec-tools 0.2.5-0.7.rhel3.3 Red Hat Enterprise Linux AS version 3 ipsec-tools 0.2.5-0.7.rhel3.3 Red Hat Enterprise Linux AS version 4 ipsec-tools 0.3.3-6.rhel4.1 Red Hat Enterprise Linux Desktop version 4 ipsec-tools 0.3.3-6.rhel4.1 Red Hat Enterprise Linux ES version 3 ipsec-tools 0.2.5-0.7.rhel3.3 Red Hat Enterprise Linux ES version 4 ipsec-tools 0.3.3-6.rhel4.1
    +2 more products
    Red Hat Enterprise Linux WS version 3 ipsec-tools 0.2.5-0.7.rhel3.3 Red Hat Enterprise Linux WS version 4 ipsec-tools 0.3.3-6.rhel4.1
    fixed: vendor fix RHSA-2006:0267

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.44% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.