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.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-1759-1 New strongswan packages fix denial of service
Debian DSA Debian DSA DSA-1760-1 New openswan packages fix denial of service
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T04:48:52.007Z

Reserved: 2009-03-04T00:00:00

Link: CVE-2009-0790

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2009-04-01T10:30:00.267

Modified: 2025-04-09T00:30:58.490

Link: CVE-2009-0790

cve-icon Redhat

Severity : Important

Publid Date: 2009-03-30T00:00:00Z

Links: CVE-2009-0790 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses