{"id":"CVE-2012-1016","aliases":["DEBIAN-CVE-2012-1016","EUVD-2012-1054","GHSA-677f-pp67-87jc","RHSA-2013:0656","UBUNTU-CVE-2012-1016","USN-2310-1","openSUSE-SU-2024:10004-1"],"status":"published","title":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT...","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","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":0.02576,"percentile":0.85299,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2013-03-03T00:00:00Z","modified":"2026-10-23T17:47:36Z","fixes":[{"ecosystem":"Debian:12","package":"krb5","fixed_in":["1.10.1+dfsg-4+nmu1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"krb5","fixed_in":["1.10.1+dfsg-4+nmu1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"krb5","fixed_in":["1.10.1+dfsg-4+nmu1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.1+dfsg-4+nmu1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.1+dfsg-4+nmu1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.1+dfsg-4+nmu1"}]}]},{"source":"osv","ecosystem":"Red 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Advisory","advisory","article","report"]},{"url":"http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","article"]},{"url":"https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52c","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-1016","tags":["advisory"]},{"url":"http://web.mit.edu/kerberos/www/krb5-1.10"},{"url":"https://github.com/advisories/GHSA-677f-pp67-87jc"},{"url":"https://security-tracker.debian.org/tracker/CVE-2012-1016","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2013:0656","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"http://tools.ietf.org/html/rfc4556","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=914749","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=917840","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_0656.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-1016","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-1016","tags":["advisory","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2013-1415","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-1415","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-1415","tags":["advisory"]},{"url":"http://krbdev.mit.edu/rt/Ticket/Display.html?id=7570","tags":["article"]},{"url":"http://web.mit.edu/kerberos/krb5-1.11/","tags":["article"]},{"url":"https://ubuntu.com/security/CVE-2012-1016","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2310-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2013-1415","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2013-1416","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2013-1418","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2013-6800","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-4341","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-4342","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-4343","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-4344","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2014-4345","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2002-2443","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0844","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0845","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0846","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0847","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-3295","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-4212","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-0283","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-0628","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1320","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1321","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1322","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1323","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1324","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4020","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4021","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4022","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0281","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0282","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0284","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0285","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1527","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1528","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1529","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1530","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1012","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1013","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1016","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-1415","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-1417","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-1418","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4341","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4342","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4343","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4344","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5351","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5352","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5353","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5354","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5355","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9421","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9422","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9423","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2694","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2695","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2696","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2697","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2698","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8629","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8630","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8631","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3119","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3120","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2012-1016","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","status":"published","published":"2013-03-03T00:00:00Z","modified":"2024-08-06T18:45:26.465Z","updated_at":"2026-11-02T14:34:52.27879Z"}],"euvd":[{"id":"EUVD-2012-1054","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","status":"published","published":"2013-03-03T00:00:00Z","modified":"2024-08-06T18:45:26Z","updated_at":"2026-11-03T01:56:19.286375Z"}],"ghsa":[{"id":"GHSA-677f-pp67-87jc","title":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT...","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","status":"published","published":"2022-05-13T01:11:50Z","modified":"2025-04-11T04:07:58Z","cwes":["CWE-476"],"updated_at":"2026-11-02T15:01:13.040475Z"}],"nvd":[{"id":"CVE-2012-1016","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","status":"published","published":"2013-03-05T04:54:02.927Z","modified":"2026-06-16T23:38:48.54Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:02:17.375282Z"}],"osv":[{"id":"CVE-2012-1016","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","status":"published","published":"2013-03-05T04:54:02Z","modified":"2026-04-10T03:44:12.848021Z","updated_at":"2026-11-02T15:43:58.537032Z"},{"id":"DEBIAN-CVE-2012-1016","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","status":"published","published":"2013-03-05T04:54:02.927Z","modified":"2026-10-23T17:47:36.205977168Z","updated_at":"2026-11-02T15:45:24.92418Z"},{"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-2013:0656","title":"Red Hat Security Advisory: krb5 security update","status":"published","published":"2024-09-15T20:40:52Z","modified":"2026-06-26T12:21:44.216084882Z","updated_at":"2026-11-02T15:53:01.993625Z"},{"id":"UBUNTU-CVE-2012-1016","description":"The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.","status":"withdrawn","published":"2013-03-04T00:00:00Z","modified":"2026-02-04T03:18:48.434908Z","updated_at":"2026-11-02T15:54:06.395274Z"},{"id":"USN-2310-1","title":"krb5 vulnerabilities","description":"It was discovered that Kerberos incorrectly handled certain crafted Draft 9\nrequests. A remote attacker could use this issue to cause the daemon to\ncrash, resulting in a denial of service. This issue only affected Ubuntu\n12.04 LTS. (CVE-2012-1016)\n\nIt was discovered that Kerberos incorrectly handled certain malformed\nKRB5_PADATA_PK_AS_REQ AS-REQ requests. A remote attacker could use this\nissue to cause the daemon to crash, resulting in a denial of service. This\nissue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS. (CVE-2013-1415)\n\nIt was discovered that Kerberos incorrectly handled certain crafted TGS-REQ\nrequests. A remote authenticated attacker could use this issue to cause the\ndaemon to crash, resulting in a denial of service. This issue only affected\nUbuntu 10.04 LTS and Ubuntu 12.04 LTS. (CVE-2013-1416)\n\nIt was discovered that Kerberos incorrectly handled certain crafted\nrequests when multiple realms were configured. A remote attacker could use\nthis issue to cause the daemon to crash, resulting in a denial of service.\nThis issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS.\n(CVE-2013-1418, CVE-2013-6800)\n\nIt was discovered that Kerberos incorrectly handled certain invalid tokens.\nIf a remote attacker were able to perform a machine-in-the-middle attack, this\nflaw could be used to cause the daemon to crash, resulting in a denial of\nservice. (CVE-2014-4341, CVE-2014-4342)\n\nIt was discovered that Kerberos incorrectly handled certain mechanisms when\nused with SPNEGO. If a remote attacker were able to perform a\nmachine-in-the-middle attack, this flaw could be used to cause clients to\ncrash, resulting in a denial of service. (CVE-2014-4343)\n\nIt was discovered that Kerberos incorrectly handled certain continuation\ntokens during SPNEGO negotiations. A remote attacker could use this issue\nto cause the daemon to crash, resulting in a denial of service.\n(CVE-2014-4344)\n\nTomas Kuthan and Greg Hudson discovered that the Kerberos kadmind daemon\nincorrectly handled buffers when used with the LDAP backend. A remote\nattacker could use this issue to cause the daemon to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. (CVE-2014-4345)\n","status":"published","published":"2014-08-11T13:20:42Z","modified":"2026-04-22T08:58:35.533158Z","updated_at":"2026-11-02T16:58:09.227524Z"}]}}