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.
Metrics
CVSS 2.0 5.0/10
AV:N/AC:L/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
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
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49523
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11171
- 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
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49523
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11171
Timeline
- Published
- Apr 1, 2009
- Last modified
- Jun 16, 2026
- NVD status
- Modified