{"id":"CVE-2004-2652","aliases":["EUVD-2004-2642","GHSA-ff3x-v55h-wqx3"],"status":"published","title":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options...","description":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.11194,"percentile":0.95984,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2004-12-31T05:00:00Z","modified":"2026-06-16T22:10:03Z","exploits":[{"source":"exploitdb","id":"EDB-25046","title":"Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (1)","type":"dos","platform":"linux","date":"2004-12-22","verified":true,"url":"https://www.exploit-db.com/exploits/25046"},{"source":"exploitdb","id":"EDB-25047","title":"Snort 2.1/2.2 - DecodeTCPOptions Remote Denial of Service (2)","type":"dos","platform":"linux","date":"2004-12-22","verified":true,"url":"https://www.exploit-db.com/exploits/25047"}],"products":[{"vendor":"sourcefire","product":"snort"}],"references":[{"url":"http://securitytracker.com/id?1012656","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Exploit","Patch"]},{"url":"http://www.frsirt.com/exploits/20041222.angelDust.c.php","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/18689","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/12084","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"http://www.securiteam.com/exploits/6X00L20C0S.html","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://www.osvdb.org/12578","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Exploit"]},{"url":"http://www.snort.org/arc_news/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://secunia.com/advisories/13664","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor Advisory"]},{"url":"http://taosecurity.blogspot.com/2004/12/details-on-snort-dos-condition-you-may.html","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-2652"},{"url":"http://www.snort.org/arc_news"},{"url":"https://github.com/advisories/GHSA-ff3x-v55h-wqx3"}],"sources":{"cve":[{"id":"CVE-2004-2652","description":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.","status":"published","published":"2005-12-18T22:00:00Z","modified":"2024-08-08T01:36:24.604Z","updated_at":"2026-11-02T14:34:53.70484Z"}],"euvd":[{"id":"EUVD-2004-2642","description":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.","status":"published","published":"2005-12-18T22:00:00Z","modified":"2024-08-08T01:36:24Z","updated_at":"2026-11-03T01:15:09.64087Z"}],"ghsa":[{"id":"GHSA-ff3x-v55h-wqx3","title":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options...","description":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.","status":"published","published":"2022-04-29T03:01:51Z","modified":"2025-04-03T04:07:12Z","updated_at":"2026-11-02T15:00:40.646262Z"}],"nvd":[{"id":"CVE-2004-2652","description":"The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP options using FAST output or verbose mode, allows remote attackers to cause a denial of service (crash) via packets with invalid TCP/IP options, which trigger a null dereference.","status":"published","published":"2004-12-31T05:00:00Z","modified":"2026-06-16T22:10:03.78Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:53.133049Z"}]}}