CVE-2009-0790

Vulnerability 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.

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• http://download.strongswan.org/CHANGES4.txtVendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00010.html
• http://secunia.com/advisories/34472Vendor Advisory
• http://secunia.com/advisories/34483Vendor Advisory
• http://secunia.com/advisories/34494Vendor Advisory
• http://secunia.com/advisories/34546Vendor Advisory
• http://www.debian.org/security/2009/dsa-1759Patch
• http://www.debian.org/security/2009/dsa-1760Patch
• http://www.openswan.org/CVE-2009-0790/CVE-2009-0790.txtVendor Advisory
• 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/34296Patch
• http://www.securitytracker.com/id?1021949
• http://www.securitytracker.com/id?1021950
• http://www.vupen.com/english/advisories/2009/0886