IPsec-Tools up to 0.6.2 IKEv1 Packet resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in IPsec-Tools up to 0.6.2. Affected is an unknown function of the component IKEv1 Packet Handler. The manipulation leads to resource management. This vulnerability is listed as CVE-2005-3732. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in IPsec-Tools up to 0.6.2 and classified as critical. This issue affects some unknown functionality of the component IKEv1 Packet Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

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.

The bug was discovered . The weakness was presented 11/14/2005 with Oulu University Secure Programming Group (OUSPG) (Website). The advisory is shared at sourceforge.net. The identification of this vulnerability is CVE-2005-3732 since 11/21/2005. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 13101 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 20763 (Ubuntu 4.10 / 5.04 / 5.10 : ipsec-tools vulnerability (USN-221-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117726 (CentOS Security Update for ipsec (CESA-2006:0267)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at sourceforge.net. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (20763), SecurityFocus (BID 15523†), OSVDB (61003†), Secunia (SA19833†) and SecurityTracker (ID 1015254†). ficora.fi is providing further details. See VDB-1912, VDB-1900, VDB-1898 and VDB-1896 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 20763
Nessus Name: Ubuntu 4.10 / 5.04 / 5.10 : ipsec-tools vulnerability (USN-221-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 56243
OpenVAS Name: Debian Security Advisory DSA 965-1 (ipsec-tools)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: sourceforge.net

Timelineinfo

11/14/2005 🔍
11/14/2005 +0 days 🔍
11/16/2005 +1 days 🔍
11/21/2005 +5 days 🔍
11/21/2005 +0 days 🔍
11/22/2005 +1 days 🔍
11/22/2005 +0 days 🔍
12/04/2005 +12 days 🔍
01/21/2006 +48 days 🔍
01/25/2006 +4 days 🔍
04/26/2006 +91 days 🔍
06/29/2025 +7003 days 🔍

Sourcesinfo

Advisory: sourceforge.net
Organization: Oulu University Secure Programming Group (OUSPG)
Status: Confirmed

CVE: CVE-2005-3732 (🔍)
GCVE (CVE): GCVE-0-2005-3732
GCVE (VulDB): GCVE-100-1913

OVAL: 🔍

SecurityFocus: 15523 - IPSec-Tools IKE Message Handling Denial of Service Vulnerability
Secunia: 19833 - Red Hat update for ipsec-tools, Moderately Critical
OSVDB: 61003 - IPsec-Tools ISAKMP Protocol Unspecified Malformed Input Remote DoS (PROTOS)
SecurityTracker: 1015254
Vulnerability Center: 9806 - IPSec-Tools Racoon IKE Remote DoS via Crafted IKE Packets, Medium
Vupen: ADV-2005-2521

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 11/16/2005 12:02
Updated: 06/29/2025 00:05
Changes: 11/16/2005 12:02 (94), 06/12/2019 06:53 (1), 06/29/2025 00:05 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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