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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.

oval:org.mitre.oval:def:11171

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.

Family:
unix
Status:
ACCEPTED
Platform(s):
  • CentOS Linux 5
  • Red Hat Enterprise Linux 5
  • Oracle Linux 5
Class:
vulnerability
Reference(s):
  • CVE-2009-0790
Product(s):