{"id":"CVE-2015-6251","aliases":["DEBIAN-CVE-2015-6251","DSA-3334-1","EUVD-2015-6193","GHSA-63p6-5792-gpfq","MGASA-2015-0322","SUSE-SU-2015:1518-1","UBUNTU-CVE-2015-6251","openSUSE-SU-2024:10105-1"],"status":"published","title":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers...","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","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":0.19178,"percentile":0.97345,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2015-08-12T00:00:00Z","modified":"2026-09-09T06:47:26Z","fixes":[{"ecosystem":"Debian:12","package":"gnutls28","fixed_in":["3.3.17-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"gnutls28","fixed_in":["3.3.17-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"gnutls28","fixed_in":["3.3.17-1"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"gnutls28","fixed_in":["3.3.8-6+deb8u2"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"gnutls28","fixed_in":["3.3.15-5ubuntu2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.17-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.17-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.17-1"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.8-6+deb8u2"}]}],"versions":["3.3.8-6","3.3.8-6+deb8u1"]},{"source":"osv","ecosystem":"Mageia:4","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.7-1.7.mga4"}]}],"bundled":2},{"source":"osv","ecosystem":"Mageia:5","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.21-1.1.mga5"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Desktop 12","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.15-11.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Software Development Kit 12","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.15-11.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.15-11.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.15-11.1"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gnutls28","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.15-5ubuntu2"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.15-1.1"}]}],"bundled":10}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"gnu","product":"gnutls"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1251902","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://lists.opensuse.org/opensuse-updates/2015-09/msg00001.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.securitytracker.com/id/1033226","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"http://www.gnutls.org/security.html#GNUTLS-SA-2015-3","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"http://www.openwall.com/lists/oss-security/2015/08/10/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","web","report"]},{"url":"http://www.securityfocus.com/bid/76267","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165286.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12","tags":["x_refsource_CONFIRM","x_transferred","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2015/08/17/6","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://www.debian.org/security/2015/dsa-3334","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-6251"},{"url":"https://github.com/advisories/GHSA-63p6-5792-gpfq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-6251","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2015-0322.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=15504","tags":["report"]},{"url":"https://www.debian.org/security/2015/dsa-3191","tags":["web"]},{"url":"https://www.debian.org/security/2015/dsa-3334","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2015/suse-su-20151518-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/929414","tags":["report"]},{"url":"https://bugzilla.suse.com/929690","tags":["report"]},{"url":"https://bugzilla.suse.com/941794","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2015-3622","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-6251","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2015-6251","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2727-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-6251","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2008-4989","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4128","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-0390","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1569","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1573","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-0092","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-1959","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-3466","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-8564","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2015-6251","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","status":"published","published":"2015-08-24T14:00:00Z","modified":"2024-08-06T07:15:13.264Z","updated_at":"2026-11-02T14:35:42.680858Z"}],"euvd":[{"id":"EUVD-2015-6193","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","status":"published","published":"2015-08-24T14:00:00Z","modified":"2024-08-06T07:15:13Z","updated_at":"2026-11-03T02:21:56.647378Z"}],"ghsa":[{"id":"GHSA-63p6-5792-gpfq","title":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers...","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","status":"published","published":"2022-05-17T03:16:11Z","modified":"2023-01-27T05:01:10Z","updated_at":"2026-11-02T14:41:50.079409Z"}],"nvd":[{"id":"CVE-2015-6251","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","status":"published","published":"2015-08-24T14:59:10.947Z","modified":"2026-06-17T00:30:34.167Z","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":"2026-11-02T14:03:08.998581Z"}],"osv":[{"id":"CVE-2015-6251","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","status":"published","published":"2015-08-24T14:59:10Z","modified":"2026-04-16T06:17:58.906386381Z","updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-6251","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","status":"published","published":"2015-08-24T14:59:10.947Z","modified":"2026-09-09T06:47:26.097890448Z","updated_at":"2026-11-02T15:45:27.04239Z"},{"id":"DSA-3334-1","title":"gnutls28 - security update","status":"published","published":"2015-08-12T00:00:00Z","modified":"2026-03-09T01:21:12.898564Z","updated_at":"2026-11-02T15:46:16.199525Z"},{"id":"MGASA-2015-0322","title":"Updated gnutls packages fix security vulnerabilities","description":"It was reported that GnuTLS does not check whether the two signature\nalgorithms match on certificate import (CVE-2015-0294).\n\nKurt Roeckx discovered that decoding a specific certificate with very long\nDistinguishedName (DN) entries leads to double free. A remote attacker can\ntake advantage of this flaw by creating a specially crafted certificate that,\nwhen processed by an application compiled against GnuTLS, could cause the\napplication to crash resulting in a denial of service (CVE-2015-6251).\n","status":"published","published":"2015-08-25T18:17:48Z","modified":"2026-04-16T06:23:04.890564287Z","updated_at":"2026-11-02T15:49:39.792687Z"},{"id":"openSUSE-SU-2024:10105-1","title":"gnutls-3.4.15-1.1 on GA media","description":"These are all security issues fixed in the gnutls-3.4.15-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:08:28.673202Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"SUSE-SU-2015:1518-1","title":"Security update for gnutls","description":"gnutls was updated to fix several security vulnerabilities.\n\n- fix double free in certificate DN decoding (GNUTLS-SA-2015-3)(bsc#941794,CVE-2015-6251)\n- fix invalid read in octet string in bundled libtasn1 (bsc#929414,CVE-2015-3622)\n- fix ServerKeyExchange signature issue (GNUTLS-SA-2015-2)(bsc#929690)\n","status":"published","published":"2015-08-24T14:25:46Z","modified":"2026-02-04T02:19:30.457805Z","updated_at":"2026-11-02T15:53:43.030986Z"},{"id":"UBUNTU-CVE-2015-6251","description":"Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.","status":"published","published":"2015-08-24T00:00:00Z","modified":"2026-04-22T10:16:49.61736Z","updated_at":"2026-11-02T15:54:10.385269Z"}]}}