Improper input validation in Strongswan
CVE-2009-0790
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.032 (86.8th percentile) — read the EPSS interpretation.
Affected products
- Strongswan — versions 2.4.0, 2.4.0a, 2.4.1
- Xelerance Openswan — versions 2.4.0, 2.4.1, 2.4.2
- N/a — versions n/a
Weakness classification (CWE)
References
- secalert@redhat.com (vdb-entry, x_refsource_XF)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (signature, x_refsource_OVAL, vdb-entry)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (vendor-advisory, Patch, x_refsource_DEBIAN)
- secalert@redhat.com (vdb-entry, x_refsource_VUPEN)
- secalert@redhat.com (vdb-entry, x_refsource_SECTRACK)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- secalert@redhat.com (mailing-list, x_refsource_BUGTRAQ)
- secalert@redhat.com (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)