{"id":"CVE-2006-0883","aliases":["DEBIAN-CVE-2006-0883","EUVD-2006-0887","GHSA-9x7m-vh7w-2mvh"],"status":"published","title":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked...","description":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0192,"percentile":0.80054,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-399"],"published":"2006-03-07T02:00:00Z","modified":"2026-10-22T23:47:29Z","fixes":[{"ecosystem":"Debian:12","package":"openssh","fixed_in":["1:3.8.1p1-4"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openssh","fixed_in":["1:3.8.1p1-4"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openssh","fixed_in":["1:3.8.1p1-4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.8.1p1-4"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.8.1p1-4"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:3.8.1p1-4"}]}]}],"products":[{"vendor":"freebsd","product":"freebsd"},{"vendor":"openbsd","product":"openssh"}],"references":[{"url":"http://www.vupen.com/english/advisories/2006/0805","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:09.openssh.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","advisory"]},{"url":"http://www.osvdb.org/23797","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"http://securitytracker.com/id?1015706","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Patch","fix"]},{"url":"http://securityreason.com/securityalert/520","tags":["third-party-advisory","x_refsource_SREASON","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/16892","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","fix"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/25116","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://bugzilla.mindrot.org/show_bug.cgi?id=839","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-0883"},{"url":"https://github.com/advisories/GHSA-9x7m-vh7w-2mvh"},{"url":"https://security-tracker.debian.org/tracker/CVE-2006-0883","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2006-0883","description":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.","status":"published","published":"2006-03-07T02:00:00Z","modified":"2024-08-07T16:48:56.801Z","updated_at":"2026-11-02T14:33:52.569914Z"}],"euvd":[{"id":"EUVD-2006-0887","description":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.","status":"published","published":"2006-03-07T02:00:00Z","modified":"2024-08-07T16:48:56Z","updated_at":"2026-11-03T01:16:07.583831Z"}],"ghsa":[{"id":"GHSA-9x7m-vh7w-2mvh","title":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked...","description":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.","status":"published","published":"2022-05-03T03:15:35Z","modified":"2023-02-01T05:01:16Z","updated_at":"2026-11-02T14:49:42.191398Z"}],"nvd":[{"id":"CVE-2006-0883","description":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.","status":"published","published":"2006-03-07T02:02:00Z","modified":"2026-06-16T22:21:28.423Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:01:00.920802Z"}],"osv":[{"id":"CVE-2006-0883","description":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.","status":"published","published":"2006-03-07T02:02:00Z","modified":"2026-04-10T03:37:25.836274Z","updated_at":"2026-11-02T15:43:56.581247Z"},{"id":"DEBIAN-CVE-2006-0883","description":"OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.","status":"published","published":"2006-03-07T02:02:00Z","modified":"2026-10-22T23:47:29.915663949Z","updated_at":"2026-11-02T15:45:22.831407Z"}]}}