{"api_version":"1","generated_at":"2026-07-23T20:47:25+00:00","cve":"CVE-2016-7056","urls":{"html":"https://cve.report/CVE-2016-7056","api":"https://cve.report/api/cve/CVE-2016-7056.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2016-7056","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-7056"},"summary":{"title":"CVE-2016-7056","description":"A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys.","state":"PUBLIC","assigner":"secalert@redhat.com","published_at":"2018-09-10 16:29:00","updated_at":"2023-02-12 23:25:00"},"problem_types":["CWE-385"],"metrics":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2017:1415","name":"https://access.redhat.com/errata/RHSA-2017:1415","refsource":"MISC","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2017:1413","name":"RHSA-2017:1413","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig","name":"https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"","mime":"text/x-diff","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/95375","name":"95375","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"OpenSSL CVE-2016-7056 Local Information Disclosure Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"http://www.securitytracker.com/id/1037575","name":"1037575","refsource":"SECTRACK","tags":["Patch","Third Party Advisory","VDB Entry"],"title":"OpenSSL ecdsa_sign_setup() Timing Flaw Lets Local Users Recover Private Keys - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHBA-2017:1929","name":"https://access.redhat.com/errata/RHBA-2017:1929","refsource":"MISC","tags":[],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008","name":"https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008","refsource":"MISC","tags":[],"title":"git.openssl.org Git - openssl.git/commit","mime":"text/xml","httpstatus":"404","archivestatus":"200"},{"url":"https://www.debian.org/security/2017/dsa-3773","name":"DSA-3773","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-3773-1 openssl","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1412120","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1412120","refsource":"MISC","tags":[],"title":"1412120 – (CVE-2016-7056) CVE-2016-7056 openssl: ECDSA P-256 timing attack key recovery","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2017:1801","name":"RHSA-2017:1801","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://seclists.org/oss-sec/2017/q1/52","name":"[oss-security] 20170110 CVE-2016-7056 ECDSA P-256 timing attack key recovery (OpenSSL, LibreSSL, BoringSSL)","refsource":"MLIST","tags":["Mailing List","Third Party Advisory"],"title":"oss-sec: CVE-2016-7056 ECDSA P-256 timing attack key recovery (OpenSSL, LibreSSL, BoringSSL)","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2017:1414","name":"RHSA-2017:1414","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://git.openssl.org/?p=openssl.git;a=commit;h=8aed2a7548362e88e84a7feb795a3a97e8395008","name":"https://git.openssl.org/?p=openssl.git;a=commit;h=8aed2a7548362e88e84a7feb795a3a97e8395008","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"git.openssl.org Git - openssl.git/commit","mime":"text/xml","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/security/cve/CVE-2016-7056","name":"https://access.redhat.com/security/cve/CVE-2016-7056","refsource":"MISC","tags":[],"title":"CVE-2016-7056 - Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056","name":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056","refsource":"CONFIRM","tags":["Issue Tracking","Patch","Third Party Advisory"],"title":"Bug 1412120 – CVE-2016-7056 openssl: ECDSA P-256 timing attack key recovery","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-1415.html","name":"RHSA-2017:1415","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"-1","archivestatus":"200"},{"url":"https://eprint.iacr.org/2016/1195","name":"https://eprint.iacr.org/2016/1195","refsource":"MISC","tags":["Third Party Advisory"],"title":"Cryptology ePrint Archive: Report 2016/1195","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-7056","name":"https://security-tracker.debian.org/tracker/CVE-2016-7056","refsource":"CONFIRM","tags":["Patch","Third Party Advisory","VDB Entry"],"title":"CVE-2016-7056","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig","name":"https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"","mime":"text/x-diff","httpstatus":"200","archivestatus":"200"},{"url":"https://access.redhat.com/errata/RHSA-2017:1802","name":"RHSA-2017:1802","refsource":"REDHAT","tags":["Third Party Advisory"],"title":"Red Hat Customer Portal","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html","name":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html","refsource":"CONFIRM","tags":["Patch","Third Party Advisory"],"title":"CVE-2016-7056 in Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-7056","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7056","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"12.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"esm","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"14.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"12.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"esm","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"canonical","cpe5":"ubuntu_linux","cpe6":"14.04","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"lts","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"1.0.1u","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openssl","cpe5":"openssl","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"6.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"7.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"6.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7056","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"redhat","cpe5":"enterprise_linux","cpe6":"7.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2016-7056","ASSIGNER":"secalert@redhat.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-385","cweId":"CWE-385"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"The OpenSSL Project","product":{"product_data":[{"product_name":"openssl","version":{"version_data":[{"version_affected":"=","version_value":"openssl 1.0.1u"}]}}]}}]}},"references":{"reference_data":[{"url":"http://rhn.redhat.com/errata/RHSA-2017-1415.html","refsource":"MISC","name":"http://rhn.redhat.com/errata/RHSA-2017-1415.html"},{"url":"https://access.redhat.com/errata/RHSA-2017:1413","refsource":"MISC","name":"https://access.redhat.com/errata/RHSA-2017:1413"},{"url":"https://access.redhat.com/errata/RHSA-2017:1414","refsource":"MISC","name":"https://access.redhat.com/errata/RHSA-2017:1414"},{"url":"https://access.redhat.com/errata/RHSA-2017:1801","refsource":"MISC","name":"https://access.redhat.com/errata/RHSA-2017:1801"},{"url":"https://access.redhat.com/errata/RHSA-2017:1802","refsource":"MISC","name":"https://access.redhat.com/errata/RHSA-2017:1802"},{"url":"https://www.debian.org/security/2017/dsa-3773","refsource":"MISC","name":"https://www.debian.org/security/2017/dsa-3773"},{"url":"http://www.securityfocus.com/bid/95375","refsource":"MISC","name":"http://www.securityfocus.com/bid/95375"},{"url":"http://www.securitytracker.com/id/1037575","refsource":"MISC","name":"http://www.securitytracker.com/id/1037575"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056","refsource":"MISC","name":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056"},{"url":"https://eprint.iacr.org/2016/1195","refsource":"MISC","name":"https://eprint.iacr.org/2016/1195"},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig","refsource":"MISC","name":"https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig"},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig","refsource":"MISC","name":"https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig"},{"url":"https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008","refsource":"MISC","name":"https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008"},{"url":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html","refsource":"MISC","name":"https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html"},{"url":"https://seclists.org/oss-sec/2017/q1/52","refsource":"MISC","name":"https://seclists.org/oss-sec/2017/q1/52"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-7056","refsource":"MISC","name":"https://security-tracker.debian.org/tracker/CVE-2016-7056"}]},"impact":{"cvss":[{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.0"}]}},"nvd":{"publishedDate":"2018-09-10 16:29:00","lastModifiedDate":"2023-02-12 23:25:00","problem_types":["CWE-385"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:N/A:N","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":2.1},"severity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"acInsufInfo":false,"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:openssl:openssl:*:*:*:*:*:*:*:*","versionEndIncluding":"1.0.1u","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2016","CveId":"7056","Ordinal":"93362","Title":"CVE-2016-7056","CVE":"CVE-2016-7056","Year":"2016"},"notes":[{"CveYear":"2016","CveId":"7056","Ordinal":"1","NoteData":"A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys.","Type":"Description","Title":null},{"CveYear":"2016","CveId":"7056","Ordinal":"2","NoteData":"2018-09-10","Type":"Other","Title":"Published"},{"CveYear":"2016","CveId":"7056","Ordinal":"3","NoteData":"2018-09-11","Type":"Other","Title":"Modified"}]}}}