Xelerance Openswan 3.7 IKEv2 Packet resource management

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as problematic, was found in Xelerance Openswan 3.7. Affected is an unknown functionality of the component IKEv2 Packet Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

Openswan 2.6.39 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon restart) via IKEv2 packets that lack expected payloads.

The weakness was published 01/15/2014 by Iustina Melinte as CVE-2013-6467.txt as not defined advisory (Website). The advisory is available at libreswan.org. This vulnerability is traded as CVE-2013-6466 since 11/04/2013. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The advisory points out:

Iustina Melinte used a custom IKE fuzzer to test libreswan. By withholding or renumbering certain IKEv2 payloads, the pluto IKE daemon crashes while trying to dereference a NULL pointer on the presumably received payload. Configurations that only allow IKEv1 are not vulnerable.

The vulnerability scanner Nessus provides a plugin with the ID 72561 (CentOS 5 / 6 : openswan (CESA-2014:0185)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks.

Upgrading to version 3.8 eliminates this vulnerability. It is possible to mitigate the problem by applying the configuration setting ikev2=never. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (90524) and Tenable (72561). Similar entries are available at VDB-54903, VDB-54905, VDB-54906 and VDB-54907.





CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.4

VulDB Base Score: 5.3
VulDB Temp Score: 4.4
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Class: Resource management
CWE: CWE-399 / CWE-404

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 72561
Nessus Name: CentOS 5 / 6 : openswan (CESA-2014:0185)
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OpenVAS ID: 702893
OpenVAS Name: Debian Security Advisory DSA 2893-1 (openswan - security update
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Threat Intelligenceinfo

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Recommended: Upgrade
Status: 🔍

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Upgrade: Openswan 3.8
Config: ikev2=never


11/04/2013 🔍
01/15/2014 +72 days 🔍
01/15/2014 +0 days 🔍
01/15/2014 +0 days 🔍
01/26/2014 +11 days 🔍
01/27/2014 +1 days 🔍
01/29/2014 +2 days 🔍
02/19/2014 +21 days 🔍
03/02/2014 +11 days 🔍
06/08/2021 +2655 days 🔍


Advisory: CVE-2013-6467.txt
Researcher: Iustina Melinte
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-6466 (🔍)

X-Force: 90524 - Openswan IKEv2 payloads denial of service, Medium Risk
Vulnerability Center: 43429 - Openswan 2.6.39 and Earlier Remote DoS via IKEv2 Packets, Medium
SecurityFocus: 65155 - Openswan IKEv2 payloads Remote Denial Of Service Vulnerability
OSVDB: 102579

See also: 🔍


Created: 01/29/2014 03:45 PM
Updated: 06/08/2021 06:55 PM
Changes: 01/29/2014 03:45 PM (78), 05/22/2017 09:07 AM (3), 06/08/2021 06:47 PM (3), 06/08/2021 06:55 PM (1)
Complete: 🔍
Cache ID: 100:D66:40


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