{"id":"CVE-2018-15599","aliases":["ALPINE-CVE-2018-15599","DEBIAN-CVE-2018-15599","DLA-1476-1","EUVD-2018-7472","GHSA-g4h3-rm2q-r287","MGASA-2018-0384","UBUNTU-CVE-2018-15599","openSUSE-SU-2024:11383-1"],"status":"published","title":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a...","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02686,"percentile":0.85948,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2018-08-21T01:00:00Z","modified":"2026-10-23T18:03:00Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.5","package":"dropbear","fixed_in":["2017.75-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.6","package":"dropbear","fixed_in":["2017.75-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.7","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"dropbear","fixed_in":["2018.76-r2"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"dropbear","fixed_in":["2018.76-4"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"dropbear","fixed_in":["2018.76-4"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"dropbear","fixed_in":["2018.76-4"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"dropbear","fixed_in":["2014.65-1+deb8u3"],"sources":["osv"]},{"ecosystem":"Mageia:6","package":"dropbear","fixed_in":["2017.75-1.1.mga6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.10","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.11","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.5","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2017.75-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.6","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2017.75-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.7","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.8","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.9","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-r2"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-4"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-4"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2018.76-4"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2014.65-1+deb8u3"}]}],"versions":["2014.65-1","2014.65-1+deb8u1","2014.65-1+deb8u2"]},{"source":"osv","ecosystem":"Mageia:6","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2017.75-1.1.mga6"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2014.65-1ubuntu2","2015.68-1","2015.70-1","2015.71-1","2016.72-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"dropbear","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2017.75-2","2017.75-3build1","2017.75-3ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"signing-party","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.11-1.3"}]}],"bundled":2}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"dropbear_ssh_project","product":"dropbear_ssh"}],"references":[{"url":"https://matt.ucc.asn.au/dropbear/CHANGES","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002109.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory","advisory","report"]},{"url":"http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002108.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Third Party Advisory","advisory","web","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2018/08/msg00026.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://old.reddit.com/r/blackhat/comments/97ywnm/openssh_username_enumeration/e4e05n2/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15599"},{"url":"https://github.com/advisories/GHSA-g4h3-rm2q-r287"},{"url":"https://security.alpinelinux.org/vuln/CVE-2018-15599","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-15599","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0384.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=23493","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-15599","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-15599","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2018-15599","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11627","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-15599","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2018-08-21T01:00:00Z","modified":"2024-08-05T10:01:54.24Z","updated_at":"2026-11-02T14:35:03.825765Z"}],"euvd":[{"id":"EUVD-2018-7472","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2018-08-21T01:00:00Z","modified":"2024-08-05T10:01:54Z","updated_at":"2026-11-03T02:39:44.201018Z"}],"ghsa":[{"id":"GHSA-g4h3-rm2q-r287","title":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a...","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2022-05-13T01:12:17Z","modified":"2023-02-01T05:03:57Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:50:07.322817Z"}],"nvd":[{"id":"CVE-2018-15599","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2018-08-21T01:29:00.35Z","modified":"2026-06-17T01:42:49.183Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:04:36.842579Z"}],"osv":[{"id":"ALPINE-CVE-2018-15599","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2018-08-21T01:29:00.35Z","modified":"2026-10-23T17:17:55.221622492Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:27:47.187336Z"},{"id":"CVE-2018-15599","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2018-08-21T01:29:00.35Z","modified":"2026-04-16T06:16:25.824971887Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:08.242347Z"},{"id":"DEBIAN-CVE-2018-15599","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2018-08-21T01:29:00.35Z","modified":"2026-10-23T18:03:00.720497255Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:30.290351Z"},{"id":"UBUNTU-CVE-2018-15599","description":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.","status":"published","published":"2018-08-21T01:29:00Z","modified":"2025-10-24T04:47:10Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:17.014176Z"},{"id":"DLA-1476-1","title":"dropbear - security update","status":"published","published":"2018-08-24T00:00:00Z","modified":"2026-03-09T01:01:33.552011Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"MGASA-2018-0384","title":"Updated dropbear packages fix security vulnerability","description":"Dropbear is prone to a user enumeration vulnerability (CVE-2018-15599). An\nexternal user without credentials can determine whether a given username\nexists on a server. \n","status":"published","published":"2018-09-21T16:26:22Z","modified":"2026-04-16T06:24:16.624106974Z","updated_at":"2026-11-02T15:49:40.793816Z"},{"id":"openSUSE-SU-2024:11383-1","title":"signing-party-2.11-1.3 on GA media","description":"These are all security issues fixed in the signing-party-2.11-1.3 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:21:44.966296Z","updated_at":"2026-11-02T16:58:35.195147Z"}]}}
