{"api_version":"1","generated_at":"2026-04-23T09:38:05+00:00","cve":"CVE-2016-6263","urls":{"html":"https://cve.report/CVE-2016-6263","api":"https://cve.report/api/cve/CVE-2016-6263.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2016-6263","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-6263"},"summary":{"title":"CVE-2016-6263","description":"The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2016-09-07 20:59:00","updated_at":"2023-11-07 02:33:00"},"problem_types":["CWE-125"],"metrics":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2016/07/20/6","name":"[oss-security] 20160720 CVE request: multiple issues fixed in GNU libidn 1.33","refsource":"MLIST","tags":["Mailing List","Third Party Advisory"],"title":"oss-security - CVE request: multiple issues fixed in GNU libidn 1.33","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/USN-3068-1","name":"USN-3068-1","refsource":"UBUNTU","tags":["Third Party Advisory"],"title":"USN-3068-1: Libidn vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html","name":"[help-libidn] 20160720 Libidn 1.33 released","refsource":"MLIST","tags":["Vendor Advisory"],"title":"Libidn 1.33 released","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/92070","name":"92070","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"GNU Libidn Multiple Remote Security Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E","name":"[bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8","refsource":"","tags":[],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E","name":"[bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8","refsource":"MLIST","tags":[],"title":"Pony Mail!","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555","name":"http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555","refsource":"CONFIRM","tags":["Issue Tracking","Patch"],"title":"libidn.git - GNU libidn","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html","name":"openSUSE-SU-2016:2135","refsource":"SUSE","tags":["Third Party Advisory"],"title":"openSUSE-SU-2016:2135-1: moderate: Security update for libidn","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html","name":"openSUSE-SU-2016:1924","refsource":"SUSE","tags":["Third Party Advisory"],"title":"openSUSE-SU-2016:1924-1: moderate: Security update for libidn","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/201908-06","name":"GLSA-201908-06","refsource":"GENTOO","tags":[],"title":"glibc: Multiple vulnerabilities (GLSA 201908-06) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.debian.org/security/2016/dsa-3658","name":"DSA-3658","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-3658-1 libidn","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.openwall.com/lists/oss-security/2016/07/21/4","name":"[oss-security] 20160721 Re: CVE request: multiple issues fixed in GNU libidn 1.33","refsource":"MLIST","tags":["Mailing List","Third Party Advisory"],"title":"oss-security - Re: CVE request: multiple issues fixed in GNU libidn 1.33","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E","name":"[bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8","refsource":"MLIST","tags":[],"title":"Pony Mail!","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E","name":"[bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8","refsource":"","tags":[],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-6263","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-6263","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2016","cve_id":"6263","vulnerable":"1","versionEndIncluding":"1.32","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"gnu","cpe5":"libidn","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2016-6263","qid":"500298","title":"Alpine Linux Security Update for libidn"},{"cve":"CVE-2016-6263","qid":"504065","title":"Alpine Linux Security Update for libidn"},{"cve":"CVE-2016-6263","qid":"710153","title":"Gentoo Linux glibc Multiple vulnerabilities (GLSA 201908-06)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2016-6263","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"[oss-security] 20160721 Re: CVE request: multiple issues fixed in GNU libidn 1.33","refsource":"MLIST","url":"http://www.openwall.com/lists/oss-security/2016/07/21/4"},{"name":"openSUSE-SU-2016:2135","refsource":"SUSE","url":"http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html"},{"name":"[oss-security] 20160720 CVE request: multiple issues fixed in GNU libidn 1.33","refsource":"MLIST","url":"http://www.openwall.com/lists/oss-security/2016/07/20/6"},{"name":"openSUSE-SU-2016:1924","refsource":"SUSE","url":"http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html"},{"name":"92070","refsource":"BID","url":"http://www.securityfocus.com/bid/92070"},{"name":"DSA-3658","refsource":"DEBIAN","url":"http://www.debian.org/security/2016/dsa-3658"},{"name":"[help-libidn] 20160720 Libidn 1.33 released","refsource":"MLIST","url":"https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html"},{"name":"http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555","refsource":"CONFIRM","url":"http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=1fbee57ef3c72db2206dd87e4162108b2f425555"},{"name":"USN-3068-1","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/USN-3068-1"},{"refsource":"GENTOO","name":"GLSA-201908-06","url":"https://security.gentoo.org/glsa/201908-06"},{"refsource":"MLIST","name":"[bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8","url":"https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E"},{"refsource":"MLIST","name":"[bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8","url":"https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E"}]}},"nvd":{"publishedDate":"2016-09-07 20:59:00","lastModifiedDate":"2023-11-07 02:33:00","problem_types":["CWE-125"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:gnu:libidn:*:*:*:*:*:*:*:*","versionEndIncluding":"1.32","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2016","CveId":"6263","Ordinal":"92563","Title":"CVE-2016-6263","CVE":"CVE-2016-6263","Year":"2016"},"notes":[{"CveYear":"2016","CveId":"6263","Ordinal":"1","NoteData":"The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.","Type":"Description","Title":null},{"CveYear":"2016","CveId":"6263","Ordinal":"2","NoteData":"2016-09-07","Type":"Other","Title":"Published"},{"CveYear":"2016","CveId":"6263","Ordinal":"3","NoteData":"2021-06-29","Type":"Other","Title":"Modified"}]}}}