{ "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2016-5117", "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": "OpenNTPD before 6.0p1 does not validate the CN for HTTPS constraint requests, which allows remote attackers to bypass the man-in-the-middle mitigations via a crafted timestamp constraint with a valid certificate." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/ntpd/constraint.c.diff?r1=1.27&r2=1.28", "refsource": "CONFIRM", "url": "http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/ntpd/constraint.c.diff?r1=1.27&r2=1.28" }, { "name": "[oss-security] 20160523 CVE request: OpenNTPD not verifying CN during HTTPS constraints request", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2016/05/23/2" }, { "name": "[oss-security] 20160529 Re: CVE request: OpenNTPD not verifying CN during HTTPS constraints request", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2016/05/29/6" }, { "name": "http://www.openntpd.org/txt/release-6.0p1.txt", "refsource": "CONFIRM", "url": "http://www.openntpd.org/txt/release-6.0p1.txt" } ] } }