CVE-2009-0790 Information

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.

Reference

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://www.securityfocus.com/archive/1/502270/100/0/threaded http://www.securityfocus.com/bid/34296 http://www.securitytracker.com/id?1021949 http://www.securitytracker.com/id?1021950 http://www.vupen.com/english/advisories/2009/0886 https://exchange.xforce.ibmcloud.com/vulnerabilities/49523 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A11171