{"id":"CVE-2004-0220","aliases":["EUVD-2004-0220","GHSA-ff3x-wrw4-fq4c"],"status":"published","title":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an...","description":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an ISAKMP packet with a malformed Cert Request payload, which causes an integer underflow that is used in a malloc operation that is not properly handled, as demonstrated by the Striker ISAKMP Protocol Test Suite.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.04604,"percentile":0.91727,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2004-03-25T05:00:00Z","modified":"2026-06-16T22:05:11Z","products":[{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"http://www.securitytracker.com/alerts/2004/Mar/1009468.html","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.securityfocus.com/bid/9907","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.openbsd.org/errata.html","tags":["vendor-advisory","x_refsource_OPENBSD","x_transferred","Patch"]},{"url":"http://marc.info/?l=bugtraq\u0026m=108008530028019\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/223273","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/15629","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.rapid7.com/advisories/R7-0018.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0220"},{"url":"https://github.com/advisories/GHSA-ff3x-wrw4-fq4c"}],"sources":{"cve":[{"id":"CVE-2004-0220","description":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an ISAKMP packet with a malformed Cert Request payload, which causes an integer underflow that is used in a malloc operation that is not properly handled, as demonstrated by the Striker ISAKMP Protocol Test Suite.","status":"published","published":"2004-03-25T05:00:00Z","modified":"2024-08-08T00:10:03.765Z","updated_at":"2026-11-02T14:34:55.098814Z"}],"euvd":[{"id":"EUVD-2004-0220","description":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an ISAKMP packet with a malformed Cert Request payload, which causes an integer underflow that is used in a malloc operation that is not properly handled, as demonstrated by the Striker ISAKMP Protocol Test Suite.","status":"published","published":"2004-03-25T05:00:00Z","modified":"2024-08-08T00:10:03Z","updated_at":"2026-11-03T01:15:20.041361Z"}],"ghsa":[{"id":"GHSA-ff3x-wrw4-fq4c","title":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an...","description":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an ISAKMP packet with a malformed Cert Request payload, which causes an integer underflow that is used in a malloc operation that is not properly handled, as demonstrated by the Striker ISAKMP Protocol Test Suite.","status":"published","published":"2022-04-29T02:57:21Z","modified":"2023-01-30T05:02:38Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:46:40.912111Z"}],"nvd":[{"id":"CVE-2004-0220","description":"isakmpd in OpenBSD 3.4 and earlier allows remote attackers to cause a denial of service via an ISAKMP packet with a malformed Cert Request payload, which causes an integer underflow that is used in a malloc operation that is not properly handled, as demonstrated by the Striker ISAKMP Protocol Test Suite.","status":"published","published":"2004-05-04T04:00:00Z","modified":"2026-06-16T22:05:11.877Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:00:49.729639Z"}]}}