Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2009-0790

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
01/04/2009
Last modified:
09/04/2025

Description

The pluto IKE daemon in Openswan and Strongswan IPsec 2.6 before 2.6.21 and 2.4 before 2.4.14, and Strongswan 4.2 before 4.2.14 and 2.8 before 2.8.9, allows remote attackers to cause a denial of service (daemon crash and restart) via a crafted (1) R_U_THERE or (2) R_U_THERE_ACK Dead Peer Detection (DPD) IPsec IKE Notification message that triggers a NULL pointer dereference related to inconsistent ISAKMP state and the lack of a phase2 state association in DPD.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:strongswan:strongswan:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.4.0a:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.4.3:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.4.4:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.6.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.6.3:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.6.4:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.8.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.8.3:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools