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

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CVE-2009-1958

Severity CVSS v4.0:
Pending analysis
Type:
CWE-399 Resource Management Errors
Publication date:
08/06/2009
Last modified:
09/04/2025

Description

charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.

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:*:*:*:*:*:*:*:* 4.2.9 (including)
cpe:2.3:a:strongswan:strongswan:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.1.4:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.1.5:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:2.3.1:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools