{"id":"CVE-2009-5138","aliases":["EUVD-2009-5093","GHSA-754r-c6vv-mv5g","RHSA-2014:0247","SUSE-SU-2015:0675-1"],"status":"published","title":"GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats...","description":"GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01799,"percentile":0.78624,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2014-03-06T18:00:00Z","modified":"2026-06-28T10:09:41Z","affected":[{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"gnutls-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"gnutls-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client_workstation","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client_workstation","package":"gnutls-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client_workstation","package":"gnutls-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"gnutls","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"gnutls-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"gnutls-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"gnutls-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.4.1-14.el5_10"}]}],"bundled":2}],"products":[{"vendor":"gnu","product":"gnutls"}],"references":[{"url":"http://secunia.com/advisories/57321","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://secunia.com/advisories/57260","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00020.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"http://secunia.com/advisories/57274","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00000.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"http://article.gmane.org/gmane.comp.security.oss.general/12223","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://rhn.redhat.com/errata/RHSA-2014-0247.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351/focus=3361","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://gitorious.org/gnutls/gnutls/commit/c8dcbedd1fdc312f5b1a70fcfbc1afe235d800cd","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch"]},{"url":"http://secunia.com/advisories/57254","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1069301","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://thread.gmane.org/gmane.comp.security.oss.general/12127","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-5138","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-754r-c6vv-mv5g"},{"url":"https://access.redhat.com/errata/RHSA-2014:0247","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1069865","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2014/rhsa-2014_0247.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2009-5138","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2009-5138","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-0092","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-0092","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-0092","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2015/suse-su-20150675-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/821818","tags":["report"]},{"url":"https://bugzilla.suse.com/835760","tags":["report"]},{"url":"https://bugzilla.suse.com/865804","tags":["report"]},{"url":"https://bugzilla.suse.com/865993","tags":["report"]},{"url":"https://bugzilla.suse.com/880730","tags":["report"]},{"url":"https://bugzilla.suse.com/880910","tags":["report"]},{"url":"https://bugzilla.suse.com/919938","tags":["report"]},{"url":"https://bugzilla.suse.com/921684","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2009-5138","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-2116","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-0092","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-3466","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-8155","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-0282","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-0294","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2009-5138","description":"GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.","status":"published","published":"2014-03-06T18:00:00Z","modified":"2024-08-07T07:32:22.389Z","updated_at":"2026-11-02T14:33:23.041383Z"}],"euvd":[{"id":"EUVD-2009-5093","description":"GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.","status":"published","published":"2014-03-06T18:00:00Z","modified":"2024-08-07T07:32:22Z","updated_at":"2026-11-03T01:39:07.783485Z"}],"ghsa":[{"id":"GHSA-754r-c6vv-mv5g","title":"GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats...","description":"GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.","status":"published","published":"2022-05-02T04:01:37Z","modified":"2023-01-31T05:09:44Z","updated_at":"2026-11-02T14:49:31.756278Z"}],"nvd":[{"id":"CVE-2009-5138","description":"GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.","status":"published","published":"2014-03-07T00:10:53.323Z","modified":"2026-06-16T23:15:09.203Z","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":"2026-11-02T14:01:38.684719Z"}],"osv":[{"id":"RHSA-2014:0247","title":"Red Hat Security Advisory: gnutls security update","status":"published","published":"2024-09-15T21:26:54Z","modified":"2026-06-28T10:09:41Z","updated_at":"2026-11-02T15:53:01.993625Z"},{"id":"SUSE-SU-2015:0675-1","title":"Security update for gnutls","description":"\nGnuTLS has been patched to ensure proper parsing of session ids during the \nTLS/SSL handshake. Additionally, three issues inherited from libtasn1 have \nbeen fixed.\n\nFurther information is available at \nhttp://www.gnutls.org/security.html#GNUTLS-SA-2014-3\n\u003chttp://www.gnutls.org/security.html#GNUTLS-SA-2014-3\u003e\n\nThese security issues have been fixed:\n\n    * Possible memory corruption during connect (CVE-2014-3466)\n    * Multiple boundary check issues could allow DoS (CVE-2014-3467)\n    * asn1_get_bit_der() can return negative bit length (CVE-2014-3468)\n    * Possible DoS by NULL pointer dereference (CVE-2014-3469)\n\nSecurity Issue references:\n\n    * CVE-2014-3466\n      \u003chttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3466\u003e\n\n","status":"published","published":"2014-06-03T20:02:07Z","modified":"2026-02-04T02:21:56.022429Z","updated_at":"2026-11-02T15:53:41.276824Z"}]}}