{"id":"CVE-2006-0677","aliases":["DEBIAN-CVE-2006-0677","DSA-977-1","EUVD-2006-0684","GHSA-5rvx-m258-68cr"],"status":"published","title":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated...","description":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger 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":0.03141,"percentile":0.87998,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2006-02-14T11:00:00Z","modified":"2026-10-22T23:47:28Z","fixes":[{"ecosystem":"Debian:12","package":"heimdal","fixed_in":["0.7.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"heimdal","fixed_in":["0.7.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"heimdal","fixed_in":["0.7.2-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"heimdal","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"heimdal","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"heimdal","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.2-1"}]}]},{"source":"osv","ecosystem":"Debian:3.1","package":"heimdal","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.3-10sarge2"}]}],"versions":["0.6.3-10","0.6.3-10sarge1"],"bundled":2}],"products":[{"vendor":"kth","product":"heimdal"}],"references":[{"url":"http://secunia.com/advisories/18894","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/19005","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2006/0653","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2006/0456","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.ubuntu.com/usn/usn-253-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/18961","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/24763","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://securityreason.com/securityalert/449","tags":["third-party-advisory","x_refsource_SREASON","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/16676","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://www.debian.org/security/2006/dsa-977","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://www.osvdb.org/23244","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2006/0628","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/archive/1/426043/100/0/threaded","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.stacken.kth.se/lists/heimdal-discuss/2006-02/msg00028.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-0677"},{"url":"https://github.com/advisories/GHSA-5rvx-m258-68cr"},{"url":"https://security-tracker.debian.org/tracker/CVE-2006-0677","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2006-0677","description":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger a null dereference.","status":"published","published":"2006-02-14T11:00:00Z","modified":"2024-08-07T16:41:29.164Z","updated_at":"2026-11-02T14:33:52.569914Z"}],"euvd":[{"id":"EUVD-2006-0684","description":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger a null dereference.","status":"published","published":"2006-02-14T11:00:00Z","modified":"2024-08-07T16:41:29Z","updated_at":"2026-11-03T01:16:08.538379Z"}],"ghsa":[{"id":"GHSA-5rvx-m258-68cr","title":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated...","description":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger a null dereference.","status":"published","published":"2022-05-01T06:41:57Z","modified":"2023-01-31T05:00:39Z","updated_at":"2026-11-02T14:47:54.245378Z"}],"nvd":[{"id":"CVE-2006-0677","description":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger a null dereference.","status":"published","published":"2006-02-14T11:06:00Z","modified":"2026-06-16T22:21:03.883Z","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":"2026-11-02T14:01:00.920802Z"}],"osv":[{"id":"CVE-2006-0677","description":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger a null dereference.","status":"published","published":"2006-02-14T11:06:00Z","modified":"2026-04-10T03:38:21.222505Z","updated_at":"2026-11-02T15:43:56.581247Z"},{"id":"DEBIAN-CVE-2006-0677","description":"telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger a null dereference.","status":"published","published":"2006-02-14T11:06:00Z","modified":"2026-10-22T23:47:28.31006328Z","updated_at":"2026-11-02T15:45:22.831407Z"},{"id":"DSA-977-1","title":"heimdal - several","status":"published","published":"2006-02-16T00:00:00Z","modified":"2026-03-09T02:10:08.160442Z","updated_at":"2026-11-02T15:46:18.716547Z"}]}}