{"id":"CVE-2005-3809","aliases":["EUVD-2005-3804","GHSA-f47f-7prx-x9jv"],"status":"published","title":"The nfattr_to_tcp function in ip_conntrack_proto_tcp.c in ctnetlink in Linux kernel 2.6.14 up to...","description":"The nfattr_to_tcp function in ip_conntrack_proto_tcp.c in ctnetlink in Linux kernel 2.6.14 up to 2.6.14.3 allows attackers to cause a denial of service (kernel oops) via an update message without private protocol information, which triggers 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":0.0205,"percentile":0.81382,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2005-11-25T21:00:00Z","modified":"2026-06-16T22:17:40Z","products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://www.osvdb.org/24114","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://marc.info/?l=linux-kernel\u0026m=113269476105016\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.14.3","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2005-3809"},{"url":"https://github.com/advisories/GHSA-f47f-7prx-x9jv"}],"sources":{"cve":[{"id":"CVE-2005-3809","description":"The nfattr_to_tcp function in ip_conntrack_proto_tcp.c in ctnetlink in Linux kernel 2.6.14 up to 2.6.14.3 allows attackers to cause a denial of service (kernel oops) via an update message without private protocol information, which triggers a null dereference.","status":"published","published":"2005-11-25T21:00:00Z","modified":"2024-08-07T23:24:36.268Z","updated_at":"2026-11-02T14:33:38.187792Z"}],"euvd":[{"id":"EUVD-2005-3804","description":"The nfattr_to_tcp function in ip_conntrack_proto_tcp.c in ctnetlink in Linux kernel 2.6.14 up to 2.6.14.3 allows attackers to cause a denial of service (kernel oops) via an update message without private protocol information, which triggers a null dereference.","status":"published","published":"2005-11-25T21:00:00Z","modified":"2024-08-07T23:24:36Z","updated_at":"2026-11-03T01:15:25.261993Z"}],"ghsa":[{"id":"GHSA-f47f-7prx-x9jv","title":"The nfattr_to_tcp function in ip_conntrack_proto_tcp.c in ctnetlink in Linux kernel 2.6.14 up to...","description":"The nfattr_to_tcp function in ip_conntrack_proto_tcp.c in ctnetlink in Linux kernel 2.6.14 up to 2.6.14.3 allows attackers to cause a denial of service (kernel oops) via an update message without private protocol information, which triggers a null dereference.","status":"published","published":"2022-05-01T02:21:24Z","modified":"2023-01-30T05:08:11Z","updated_at":"2026-11-02T14:47:48.188889Z"}],"nvd":[{"id":"CVE-2005-3809","description":"The nfattr_to_tcp function in ip_conntrack_proto_tcp.c in ctnetlink in Linux kernel 2.6.14 up to 2.6.14.3 allows attackers to cause a denial of service (kernel oops) via an update message without private protocol information, which triggers a null dereference.","status":"published","published":"2005-11-25T21:03:00Z","modified":"2026-06-16T22:17:40.31Z","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":"2026-11-02T14:00:57.944899Z"}]}}