{"id":"CVE-2007-6263","aliases":["DEBIAN-CVE-2007-6263","EUVD-2007-6231","GHSA-xch5-xh5p-whc7"],"status":"published","title":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to...","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02479,"percentile":0.84668,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2007-12-06T15:00:00Z","modified":"2026-11-04T16:00:15Z","fixes":[{"ecosystem":"Debian:12","package":"linux-ftpd-ssl","fixed_in":["0.17.18+0.3-9.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux-ftpd-ssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.17.18+0.3-9.1"}]}]}],"products":[{"vendor":"netkit-ftp","product":"netkit_ftp"}],"references":[{"url":"http://www.securityfocus.com/bid/26763","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://secunia.com/advisories/28697","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.gentoo.org/security/en/glsa/glsa-200801-17.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","web"]},{"url":"http://marc.info/?l=full-disclosure\u0026m=119704348003382\u0026w=2","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","web"]},{"url":"http://bugs.gentoo.org/show_bug.cgi?id=199206","tags":["x_refsource_MISC","x_transferred","Exploit","evidence"]},{"url":"http://osvdb.org/41191","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-6263"},{"url":"https://github.com/advisories/GHSA-xch5-xh5p-whc7"},{"url":"https://security-tracker.debian.org/tracker/CVE-2007-6263","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2007-6263","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","status":"published","published":"2007-12-06T15:00:00Z","modified":"2024-08-07T16:02:36.274Z","updated_at":"2026-11-02T13:33:07.91528Z"}],"euvd":[{"id":"EUVD-2007-6231","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","status":"published","published":"2007-12-06T15:00:00Z","modified":"2024-08-07T16:02:36Z","updated_at":"2026-11-03T01:16:13.781034Z"}],"ghsa":[{"id":"GHSA-xch5-xh5p-whc7","title":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to...","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","status":"published","published":"2022-05-01T18:41:11Z","modified":"2023-01-31T05:05:37Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:48:53.375258Z"}],"nvd":[{"id":"CVE-2007-6263","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","status":"published","published":"2007-12-06T15:46:00Z","modified":"2026-06-16T22:47:42.7Z","cvss":[{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:23.208914Z"}],"osv":[{"id":"CVE-2007-6263","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","status":"published","published":"2007-12-06T15:46:00Z","modified":"2026-04-10T03:39:24.285477Z","updated_at":"2026-11-02T15:43:57.178433Z"},{"id":"DEBIAN-CVE-2007-6263","description":"The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash) and possibly have unspecified other impact via some types of FTP over SSL protocol behavior, as demonstrated by breaking a passive FTP DATA connection in a way that triggers an error in the server's SSL_accept function. NOTE: the netkit ftp issue is covered by CVE-2007-5769.","status":"published","published":"2007-12-06T15:46:00Z","modified":"2026-11-04T16:00:15.477604986Z","updated_at":"2026-11-04T16:09:54.005488Z"}]}}