{"id":"CVE-2018-5710","aliases":["ALPINE-CVE-2018-5710","BELL-CVE-2018-5710","DEBIAN-CVE-2018-5710","DLA-1643-1","DLA-2771-1","EUVD-2018-17479","GHSA-6wfw-m2q3-x7rq","MGASA-2018-0155","UBUNTU-CVE-2018-5710"],"status":"published","title":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function ...","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01795,"percentile":0.78583,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2018-01-16T09:00:00Z","modified":"2026-10-24T10:30:23Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.7","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.8","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.9","package":"krb5","fixed_in":["1.15.3-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"krb5","fixed_in":["1.16.1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"krb5","fixed_in":["1.16.1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"krb5","fixed_in":["1.16.1-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"krb5","fixed_in":["1.12+dfsg-2ubuntu5.4"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"krb5","fixed_in":["1.13.2+dfsg-5ubuntu2.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"krb5","fixed_in":["1.16-2ubuntu0.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.10","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.11","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.7","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15.3-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.8","package":"krb5","ranges":[{"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issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2018-01-16T09:00:00Z","modified":"2024-08-05T05:40:51.143Z","updated_at":"2026-11-02T14:35:00.948726Z"}],"euvd":[{"id":"EUVD-2018-17479","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2018-01-16T09:00:00Z","modified":"2024-08-05T05:40:51Z","updated_at":"2026-11-03T02:40:10.116776Z"}],"ghsa":[{"id":"GHSA-6wfw-m2q3-x7rq","title":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function ...","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2022-05-14T03:07:23Z","modified":"2023-02-02T05:07:35Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:52:32.871435Z"}],"nvd":[{"id":"CVE-2018-5710","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2018-01-16T09:29:00.53Z","modified":"2026-06-17T02:00:38.193Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:04:22.309028Z"}],"osv":[{"id":"ALPINE-CVE-2018-5710","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2018-01-16T09:29:00.53Z","modified":"2026-10-23T17:17:55.274468773Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:47.663013Z"},{"id":"BELL-CVE-2018-5710","title":"CVE-2018-5710 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:14:37.687492Z","modified":"2026-01-26T09:46:17.675603Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:14.701973Z"},{"id":"CVE-2018-5710","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2018-01-16T09:29:00.53Z","modified":"2026-10-24T10:30:23.176550938Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.442568Z"},{"id":"DEBIAN-CVE-2018-5710","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2018-01-16T09:29:00.53Z","modified":"2026-10-23T18:03:07.188212871Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"UBUNTU-CVE-2018-5710","description":"An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution Center (KDC), which allows remote authenticated users to cause a denial of service (NULL pointer dereference) via a modified kadmin client.","status":"published","published":"2018-01-16T09:29:00Z","modified":"2026-04-22T11:59:27.504361Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:18.33562Z"},{"id":"DLA-1643-1","title":"krb5 - security update","status":"published","published":"2019-01-25T00:00:00Z","modified":"2026-03-09T01:22:04.727225Z","updated_at":"2026-11-02T15:46:09.777694Z"},{"id":"DLA-2771-1","title":"krb5 - security update","status":"published","published":"2021-09-30T00:00:00Z","modified":"2026-03-09T01:20:11.686302Z","updated_at":"2026-11-02T15:46:11.189256Z"},{"id":"MGASA-2018-0155","title":"Updated krb5 packages fix security vulnerabilities","description":"Updated krb5 packages fix security vulnerabilities:\n\nAn issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The \npre-defined function \"strlen\" is getting a \"NULL\" string as a parameter value\nin plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the Key Distribution\nCenter (KDC), which allows remote authenticated users to cause a denial of\nservice (NULL pointer dereference) via a modified kadmin client\n(CVE-2018-5710, CVE-2018-5729, CVE-2018-5730).\n","status":"published","published":"2018-03-01T21:27:52Z","modified":"2026-04-16T04:44:29.178826538Z","updated_at":"2026-11-02T15:49:40.442238Z"}]}}