{"id":"CVE-2001-1056","aliases":["EUVD-2001-1037","GHSA-jqp9-rhpg-wv3f"],"status":"published","title":"IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass...","description":"IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a \"DCC SEND\" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02439,"percentile":0.84403,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-07-30T04:00:00Z","modified":"2026-06-16T21:55:29Z","products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2001-07/0750.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2001-07/0733.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link"]},{"url":"http://www.iss.net/security_center/static/6923.php","tags":["vdb-entry","x_refsource_XF","x_transferred","Broken Link"]},{"url":"http://www.osvdb.org/1916","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Broken Link"]},{"url":"http://www.securityfocus.com/bid/3117","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1056"},{"url":"https://github.com/advisories/GHSA-jqp9-rhpg-wv3f"}],"sources":{"cve":[{"id":"CVE-2001-1056","description":"IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a \"DCC SEND\" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:44:07.02Z","updated_at":"2026-11-02T14:34:42.680977Z"}],"euvd":[{"id":"EUVD-2001-1037","description":"IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a \"DCC SEND\" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-08T04:44:07Z","updated_at":"2026-11-03T01:14:49.089023Z"}],"ghsa":[{"id":"GHSA-jqp9-rhpg-wv3f","title":"IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass...","description":"IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a \"DCC SEND\" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.","status":"published","published":"2022-04-30T18:17:16Z","modified":"2023-01-30T05:05:10Z","updated_at":"2026-11-02T14:47:12.491869Z"}],"nvd":[{"id":"CVE-2001-1056","description":"IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a \"DCC SEND\" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.","status":"published","published":"2001-07-30T04:00:00Z","modified":"2026-06-16T21:55:29.92Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:40.041412Z"}]}}