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whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.","status":"published","published":"2015-05-25T19:59:02.407Z","modified":"2026-06-17T00:24:34.02Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:03:04.906059Z"}],"osv":[{"id":"CVE-2015-2694","description":"The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.","status":"published","published":"2015-05-25T19:59:02Z","modified":"2026-04-10T03:45:13.018803Z","updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-2694","description":"The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.","status":"published","published":"2015-05-25T19:59:02.407Z","modified":"2026-09-09T06:47:30.283350041Z","updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"openSUSE-SU-2024:10004-1","title":"krb5-1.15-1.1 on GA media","description":"These are all security issues fixed in the krb5-1.15-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:18:07.629761Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"RHSA-2015:2154","title":"Red Hat Security Advisory: krb5 security, bug fix, and enhancement update","status":"published","published":"2024-09-15T22:34:10Z","modified":"2026-08-05T10:03:24Z","updated_at":"2026-11-02T15:53:03.182161Z"},{"id":"SUSE-SU-2015:1276-1","title":"Security update for krb5","description":"krb5 was updated to fix four security issues.\n\nThese security issues were fixed:\n- CVE-2014-5353: NULL pointer dereference when using a ticket policy name as password name (bsc#910457).\n- CVE-2014-5354: NULL pointer dereference when using keyless entries (bsc#910458).\n- CVE-2014-5355: Denial of service in krb5_read_message (bsc#918595).\n- CVE-2015-2694: OTP and PKINIT kdcpreauth modules leading to requires_preauth bypass (bsc#928978).\n","status":"published","published":"2015-07-14T12:55:16Z","modified":"2026-02-04T04:05:56.08101Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"UBUNTU-CVE-2015-2694","description":"The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.","status":"published","published":"2015-05-25T00:00:00Z","modified":"2026-04-22T10:05:23.704464Z","updated_at":"2026-11-02T15:54:10.045446Z"},{"id":"USN-2810-1","title":"krb5 vulnerabilities","description":"It was discovered that the Kerberos kpasswd service incorrectly handled\ncertain UDP packets. A remote attacker could possibly use this issue to\ncause resource consumption, resulting in a denial of service. This issue\nonly affected Ubuntu 12.04 LTS. (CVE-2002-2443)\n\nIt was discovered that Kerberos incorrectly handled null bytes in certain\ndata fields. A remote attacker could possibly use this issue to cause a\ndenial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu\n14.04 LTS. (CVE-2014-5355)\n\nIt was discovered that the Kerberos kdcpreauth modules incorrectly tracked\ncertain client requests. A remote attacker could possibly use this issue\nto bypass intended preauthentication requirements. This issue only affected\nUbuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-2694)\n\nIt was discovered that Kerberos incorrectly handled certain SPNEGO packets.\nA remote attacker could possibly use this issue to cause a denial of\nservice. (CVE-2015-2695)\n\nIt was discovered that Kerberos incorrectly handled certain IAKERB packets.\nA remote attacker could possibly use this issue to cause a denial of\nservice. (CVE-2015-2696, CVE-2015-2698)\n\nIt was discovered that Kerberos incorrectly handled certain TGS requests. A\nremote attacker could possibly use this issue to cause a denial of service.\n(CVE-2015-2697)\n","status":"published","published":"2015-11-12T17:50:55Z","modified":"2026-04-22T09:18:36.934079Z","updated_at":"2026-11-02T16:58:10.303275Z"}]}}