{"id":"CVE-2002-0666","aliases":["DEBIAN-CVE-2002-0666","DSA-201","EUVD-2002-0660","GHSA-p32c-ffc2-42q3"],"status":"published","title":"IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length...","description":"IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02474,"percentile":0.84649,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2002-10-25T04:00:00Z","modified":"2026-06-16T21:57:54Z","fixes":[{"ecosystem":"Debian:3.0","package":"freeswan","fixed_in":["1.96-1.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:3.0","package":"freeswan","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.96-1.4"}]}],"versions":["1.96-1.2"]}],"products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"mac_os_x_server"},{"vendor":"freebsd","product":"freebsd"},{"vendor":"frees_wan","product":"frees_wan"},{"vendor":"global_technology_associates","product":"gnat_box_firmware"},{"vendor":"nec","product":"bluefire_ix1035_router"},{"vendor":"nec","product":"ix1010"},{"vendor":"nec","product":"ix1011"},{"vendor":"nec","product":"ix1020"},{"vendor":"nec","product":"ix1050"},{"vendor":"nec","product":"ix2010"},{"vendor":"netbsd","product":"netbsd"}],"references":[{"url":"http://razor.bindview.com/publish/advisories/adv_ipsec.html","tags":["vendor-advisory","x_refsource_BINDVIEW","x_transferred","Vendor Advisory"]},{"url":"http://www.iss.net/security_center/static/10411.php","tags":["vdb-entry","x_refsource_XF","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/6011","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.debian.org/security/2002/dsa-201","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/459371","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-016.txt.asc","tags":["vendor-advisory","x_refsource_NETBSD","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-0666"},{"url":"https://github.com/advisories/GHSA-p32c-ffc2-42q3"}],"sources":{"cve":[{"id":"CVE-2002-0666","description":"IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.","status":"published","published":"2002-10-25T04:00:00Z","modified":"2024-08-08T02:56:38.381Z","updated_at":"2026-11-02T14:33:55.642267Z"}],"euvd":[{"id":"EUVD-2002-0660","description":"IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.","status":"published","published":"2002-10-25T04:00:00Z","modified":"2024-08-08T02:56:38Z","updated_at":"2026-11-03T01:14:59.632362Z"}],"ghsa":[{"id":"GHSA-p32c-ffc2-42q3","title":"IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length...","description":"IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.","status":"published","published":"2022-05-03T03:07:57Z","modified":"2023-02-01T05:01:03Z","updated_at":"2026-11-02T14:49:39.648637Z"}],"nvd":[{"id":"CVE-2002-0666","description":"IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.","status":"published","published":"2002-11-04T05:00:00Z","modified":"2026-06-16T21:57:54.277Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:43.239725Z"}],"osv":[{"id":"DSA-201","title":"freeswan - denial of service","status":"published","published":"2002-12-02T00:00:00Z","modified":"2026-03-09T01:22:47.084186Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}