CVE-2009-1632: Ipsec-Tools

Medium severity, CVSS 5.0. EPSS: 2% chance of exploitation in the next 30 days.

Multiple memory leaks in Ipsec-tools before 0.7.2 allow remote attackers to cause a denial of service (memory consumption) via vectors involving (1) signature verification during user authentication with X.509 certificates, related to the eay_check_x509sign function in src/racoon/crypto_openssl.c; and (2) the NAT-Traversal (aka NAT-T) keepalive implementation, related to src/racoon/nattraversal.c.

Affected products

• Ipsec-Tools Ipsec-Tools: up to and including 0.7.1; version 0.1 only; version 0.2 only; version 0.2.1 only; version 0.2.2 only; version 0.2.3 only; …

Published 2009-05-14. Last modified 2026-06-16.