{"id":"DEBIAN-CVE-2009-1957","details":"charon/sa/ike_sa.c in the charon daemon in strongSWAN before 4.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an invalid IKE_SA_INIT request that triggers \"an incomplete state,\" followed by a CREATE_CHILD_SA request.","modified":"2026-09-22T16:47:29.872570442Z","published":"2009-06-08T01:00:00.733Z","upstream":["CVE-2009-1957"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2009-1957"}],"affected":[{"package":{"name":"strongswan","ecosystem":"Debian:12","purl":"pkg:deb/debian/strongswan?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.14-1.1"}]}],"ecosystem_specific":{"urgency":"medium"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-1957.json"}},{"package":{"name":"strongswan","ecosystem":"Debian:13","purl":"pkg:deb/debian/strongswan?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.14-1.1"}]}],"ecosystem_specific":{"urgency":"medium"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-1957.json"}},{"package":{"name":"strongswan","ecosystem":"Debian:14","purl":"pkg:deb/debian/strongswan?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.14-1.1"}]}],"ecosystem_specific":{"urgency":"medium"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-1957.json"}}],"schema_version":"1.9.0"}