{"id":"CVE-2006-4925","aliases":["DEBIAN-CVE-2006-4925","EUVD-2006-4912","GHSA-c5hw-qx35-fpg2"],"status":"published","title":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by...","description":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.","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":"2026-11-08","score":0.15034,"percentile":0.96744,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2006-09-29T00:00:00Z","modified":"2026-10-22T23:47:28Z","fixes":[{"ecosystem":"Debian:12","package":"openssh","fixed_in":["1:5.1p1-5"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openssh","fixed_in":["1:5.1p1-5"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openssh","fixed_in":["1:5.1p1-5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.1p1-5"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.1p1-5"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.1p1-5"}]}]}],"products":[{"vendor":"openbsd","product":"openssh"}],"references":[{"url":"http://secunia.com/advisories/23038","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/archive/1/447861/100/200/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://www.novell.com/linux/security/advisories/2006_24_sr.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","advisory"]},{"url":"http://www.novell.com/linux/security/advisories/2006_62_openssh.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","advisory"]},{"url":"https://issues.rpath.com/browse/RPL-681","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://secunia.com/advisories/22298","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/packet.c.diff?r1=1.144\u0026r2=1.145\u0026f=h","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://secunia.com/advisories/22495","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/archive/1/447153/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html","tags":["vendor-advisory","x_refsource_OPENPKG","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/22245","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://issues.rpath.com/browse/RPL-661","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://bugs.gentoo.org/show_bug.cgi?id=148228","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","evidence","fix"]},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2006:179","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-4925"},{"url":"https://github.com/advisories/GHSA-c5hw-qx35-fpg2"},{"url":"https://security-tracker.debian.org/tracker/CVE-2006-4925","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2006-4925","description":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.","status":"published","published":"2006-09-29T00:00:00Z","modified":"2024-08-07T19:32:22.091Z","updated_at":"2026-11-02T14:33:51.085765Z"}],"euvd":[{"id":"EUVD-2006-4912","description":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.","status":"published","published":"2006-09-29T00:00:00Z","modified":"2024-08-07T19:32:22Z","updated_at":"2026-11-03T01:15:49.872879Z"}],"ghsa":[{"id":"GHSA-c5hw-qx35-fpg2","title":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by...","description":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.","status":"published","published":"2022-05-01T07:23:23Z","modified":"2023-01-31T05:02:02Z","updated_at":"2026-11-02T14:48:11.03026Z"}],"nvd":[{"id":"CVE-2006-4925","description":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.","status":"published","published":"2006-09-29T00:07:00Z","modified":"2026-06-16T22:30:09.057Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:06.675668Z"}],"osv":[{"id":"CVE-2006-4925","description":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.","status":"published","published":"2006-09-29T00:07:00Z","modified":"2026-04-10T03:38:33.024695Z","updated_at":"2026-11-02T15:43:56.865964Z"},{"id":"DEBIAN-CVE-2006-4925","description":"packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.","status":"published","published":"2006-09-29T00:07:00Z","modified":"2026-10-22T23:47:28.499690948Z","updated_at":"2026-11-02T15:45:23.105674Z"}]}}