{"id":"CVE-2014-5355","aliases":["DEBIAN-CVE-2014-5355","DLA-1265-1","EUVD-2014-5244","GHSA-cmh6-3x5j-qf2g","MGASA-2015-0119","RHSA-2015:0794","RHSA-2015:2154","SUSE-SU-2015:1276-1","SUSE-SU-2015:1282-1","UBUNTU-CVE-2014-5355","USN-2810-1","openSUSE-SU-2024:10004-1"],"status":"published","title":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field...","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","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":"2026-11-07","score":0.04587,"percentile":0.91698,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2015-02-20T00:00:00Z","modified":"2026-10-23T15:47:24Z","fixes":[{"ecosystem":"Debian:12","package":"krb5","fixed_in":["1.12.1+dfsg-18"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"krb5","fixed_in":["1.12.1+dfsg-18"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"krb5","fixed_in":["1.12.1+dfsg-18"],"sources":["osv"]},{"ecosystem":"Mageia:4","package":"krb5","fixed_in":["1.11.4-1.5.mga4"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"krb5","fixed_in":["1.12+dfsg-2ubuntu5.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.1+dfsg-18"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.1+dfsg-18"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.1+dfsg-18"}]}]},{"source":"osv","ecosystem":"Debian:7","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.1+dfsg-5+deb7u9"}]}],"versions":["1.10.1+dfsg-5","1.10.1+dfsg-5+deb7u1","1.10.1+dfsg-5+deb7u2","1.10.1+dfsg-5+deb7u3","1.10.1+dfsg-5+deb7u4","1.10.1+dfsg-5+deb7u5","1.10.1+dfsg-5+deb7u6","1.10.1+dfsg-5+deb7u7","1.10.1+dfsg-5+deb7u8"],"bundled":6},{"source":"osv","ecosystem":"Mageia:4","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.11.4-1.5.mga4"}]}]},{"source":"osv","ecosystem":"Red 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Advisory","advisory"]},{"url":"http://www.ubuntu.com/usn/USN-2810-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-5355","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cmh6-3x5j-qf2g"},{"url":"https://security-tracker.debian.org/tracker/CVE-2014-5355","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2015-0119.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=15542","tags":["report"]},{"url":"https://access.redhat.com/errata/RHSA-2015:0794","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1174543","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1179856","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1179857","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1179861","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1193939","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2015/rhsa-2015_0794.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-5352","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-5352","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-5352","tags":["advisory"]},{"url":"http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2015-001.txt","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-5353","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-5353","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-5353","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-5355","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-5355","tags":["advisory","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-9421","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-9421","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-9421","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-9422","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-9422","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-9422","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2015:2154","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1156144","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1163402","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1164304","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1185770","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1203889","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1216133","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1222903","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1247608","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1247751","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1247761","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1250154","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1251586","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1259846","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2015/rhsa-2015_2154.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2015-2694","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-2694","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-2694","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2015/suse-su-20151276-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/910457","tags":["report"]},{"url":"https://bugzilla.suse.com/910458","tags":["report"]},{"url":"https://bugzilla.suse.com/918595","tags":["report"]},{"url":"https://bugzilla.suse.com/928978","tags":["report"]},{"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-2015-2694","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2015/suse-su-20151282-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2014-5355","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2810-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2002-2443","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2694","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2695","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2696","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2697","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2015-2698","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-2014-9421","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-2015-2695","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-2014-5355","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","status":"published","published":"2015-02-20T11:00:00Z","modified":"2024-08-06T11:41:49.279Z","updated_at":"2026-11-02T14:33:41.553118Z"}],"euvd":[{"id":"EUVD-2014-5244","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","status":"published","published":"2015-02-20T11:00:00Z","modified":"2024-08-06T11:41:49Z","updated_at":"2026-11-03T01:57:03.276706Z"}],"ghsa":[{"id":"GHSA-cmh6-3x5j-qf2g","title":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field...","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","status":"published","published":"2022-05-13T01:28:48Z","modified":"2023-02-01T05:07:43Z","updated_at":"2026-11-02T14:50:36.100181Z"}],"nvd":[{"id":"CVE-2014-5355","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","status":"published","published":"2015-02-20T11:59:00.06Z","modified":"2026-06-17T00:11:26.073Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:58.385843Z"}],"osv":[{"id":"CVE-2014-5355","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","status":"published","published":"2015-02-20T11:59:00Z","modified":"2026-04-16T06:18:15.613848322Z","updated_at":"2026-11-02T15:43:59.654289Z"},{"id":"DEBIAN-CVE-2014-5355","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","status":"published","published":"2015-02-20T11:59:00.06Z","modified":"2026-10-23T15:47:24.088643942Z","updated_at":"2026-11-02T15:45:26.134753Z"},{"id":"DLA-1265-1","title":"krb5 - security update","status":"published","published":"2018-01-31T00:00:00Z","modified":"2026-03-09T01:01:20.039047Z","updated_at":"2026-11-02T15:46:09.336894Z"},{"id":"MGASA-2015-0119","title":"Updated krb5 package fixes security vulnerability","description":"MIT Kerberos 5 through 1.13.1 incorrectly expects that a krb5_read_message\ndata field is represented as a string ending with a '\\0' character, which\nallows remote attackers to cause a denial of service (NULL pointer\ndereference) via a zero-byte version string or cause a denial of service\n(out-of-bounds read) by omitting the '\\0' character, related to\nappl/user_user/server.c and lib/krb5/krb/recvauth.c (CVE-2014-5355).\n","status":"published","published":"2015-03-27T21:12:10Z","modified":"2026-04-16T06:23:20.209295365Z","updated_at":"2026-11-02T15:49:39.488462Z"},{"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-2015:0794","title":"Red Hat Security Advisory: krb5 security update","status":"published","published":"2024-09-15T22:18:40Z","modified":"2026-08-05T10:03:12Z","updated_at":"2026-11-02T15:53:03.182161Z"},{"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":"SUSE-SU-2015:1282-1","title":"Security update for krb5","description":"krb5 was updated to fix three security issues.\n\nRemote authenticated users could cause denial of service.\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","status":"published","published":"2015-07-10T18:44:05Z","modified":"2026-02-04T03:57:01.328597Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"UBUNTU-CVE-2014-5355","description":"MIT Kerberos 5 (aka krb5) through 1.13.1 incorrectly expects that a krb5_read_message data field is represented as a string ending with a '\\0' character, which allows remote attackers to (1) cause a denial of service (NULL pointer dereference) via a zero-byte version string or (2) cause a denial of service (out-of-bounds read) by omitting the '\\0' character, related to appl/user_user/server.c and lib/krb5/krb/recvauth.c.","status":"published","published":"2015-02-20T00:00:00Z","modified":"2026-04-22T09:46:43.049156Z","updated_at":"2026-11-02T15:54:09.010095Z"},{"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"}]}}