CVE-2009-0790 – openswan: ISAKMP DPD remote DoS

https://notcve.org/view.php?id=CVE-2009-0790

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. El demonio IKE pluto de Openswan y Strongswan IPsec v2.6 anterior a v2.6.21 y v2.4 anterior a v2.4.14, y Strongswan v4.2 anterior a v4.2.14 y v2.8 anteior a v2.8.9; permite a atacantes remotos provocar una denegación de servicio (caída del demonio y reinicio) a través de (1) R_U_THERE o (2) R_U_THERE_ACK Detección de pares muertos (Dead Peer Detection -DPD) mensaje de Notificación IKE IPsec que provoca una referencia a puntero nulo relacionado con el estado inconsistente ISAKMP y la falta de un estado de asociacion phase2 en DPD. • http://download.strongswan.org/CHANGES4.txt http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00010.html http://secunia.com/advisories/34472 http://secunia.com/advisories/34483 http://secunia.com/advisories/34494 http://secunia.com/advisories/34546 http://www.debian.org/security/2009/dsa-1759 http://www.debian.org/security/2009/dsa-1760 http://www.openswan.org/CVE-2009-0790/CVE-2009-0790.txt http://www.redhat.com/support/errata/RHSA-2009-0402.html http:/ • CWE-20: Improper Input Validation •