{"id":"CVE-2015-6251","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-6251","generatedAt":"2026-11-05T05:57:25.478Z","title":"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.","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.","published":"2015-08-24T14:59:11.000Z","lastModified":"2026-06-17T00:30:34.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P"},"cwe":[],"affected":["gnu/gnutls","debian/debian linux"],"epss":{"score":0.19178,"percentile":0.97336,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 19.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165286.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2015-09/msg00001.html","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2015/dsa-3334","source":"secalert@redhat.com"},{"url":"http://www.gnutls.org/security.html#GNUTLS-SA-2015-3","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2015/08/10/1","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2015/08/17/6","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/76267","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id/1033226","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1251902","source":"secalert@redhat.com"},{"url":"https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165286.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2015-09/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2015/dsa-3334","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.gnutls.org/security.html#GNUTLS-SA-2015-3","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2015/08/10/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2015/08/17/6","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/76267","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1033226","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1251902","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gitlab.com/gnutls/gnutls/commit/272854367efc130fbd4f1a51840d80c630214e12","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-6251","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}