{"api_version":"1","generated_at":"2026-04-23T01:11:59+00:00","cve":"CVE-2018-0732","urls":{"html":"https://cve.report/CVE-2018-0732","api":"https://cve.report/api/cve/CVE-2018-0732.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-0732","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-0732"},"summary":{"title":"CVE-2018-0732","description":"During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). 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This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o)."}]},"impact":[{"lang":"eng","url":"https://www.openssl.org/policies/secpolicy.html#Low","value":"Low"}],"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Client side Denial of Service"}]}]},"references":{"reference_data":[{"name":"[debian-lts-announce] 20180728 [SECURITY] [DLA 1449-1] openssl security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00043.html"},{"name":"104442","refsource":"BID","url":"http://www.securityfocus.com/bid/104442"},{"name":"DSA-4355","refsource":"DEBIAN","url":"https://www.debian.org/security/2018/dsa-4355"},{"name":"RHSA-2018:2552","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2018:2552"},{"name":"GLSA-201811-03","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/201811-03"},{"name":"USN-3692-2","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3692-2/"},{"name":"RHSA-2018:2553","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2018:2553"},{"name":"RHSA-2018:3505","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2018:3505"},{"name":"USN-3692-1","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3692-1/"},{"name":"RHSA-2018:3221","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2018:3221"},{"name":"DSA-4348","refsource":"DEBIAN","url":"https://www.debian.org/security/2018/dsa-4348"},{"name":"1041090","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1041090"},{"refsource":"REDHAT","name":"RHSA-2019:1297","url":"https://access.redhat.com/errata/RHSA-2019:1297"},{"refsource":"REDHAT","name":"RHSA-2019:1296","url":"https://access.redhat.com/errata/RHSA-2019:1296"},{"refsource":"REDHAT","name":"RHSA-2019:1543","url":"https://access.redhat.com/errata/RHSA-2019:1543"},{"refsource":"FEDORA","name":"FEDORA-2019-db06efdea1","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/"},{"refsource":"FEDORA","name":"FEDORA-2019-00c25b9379","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/"},{"refsource":"FEDORA","name":"FEDORA-2019-9a0a7c0986","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/"},{"url":"https://www.oracle.com/security-alerts/cpuapr2020.html","refsource":"MISC","name":"https://www.oracle.com/security-alerts/cpuapr2020.html"},{"name":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","refsource":"CONFIRM","url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"},{"name":"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html","refsource":"CONFIRM","url":"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html","refsource":"MISC","name":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html","refsource":"MISC","name":"https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html","refsource":"MISC","name":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"},{"url":"https://www.oracle.com/security-alerts/cpujan2021.html","refsource":"MISC","name":"https://www.oracle.com/security-alerts/cpujan2021.html"},{"name":"https://www.tenable.com/security/tns-2018-14","refsource":"CONFIRM","url":"https://www.tenable.com/security/tns-2018-14"},{"name":"https://securityadvisories.paloaltonetworks.com/Home/Detail/133","refsource":"CONFIRM","url":"https://securityadvisories.paloaltonetworks.com/Home/Detail/133"},{"name":"https://www.tenable.com/security/tns-2018-13","refsource":"CONFIRM","url":"https://www.tenable.com/security/tns-2018-13"},{"name":"https://www.tenable.com/security/tns-2018-17","refsource":"CONFIRM","url":"https://www.tenable.com/security/tns-2018-17"},{"name":"https://www.tenable.com/security/tns-2018-12","refsource":"CONFIRM","url":"https://www.tenable.com/security/tns-2018-12"},{"name":"https://security.netapp.com/advisory/ntap-20181105-0001/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20181105-0001/"},{"name":"https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/","refsource":"CONFIRM","url":"https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/"},{"name":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=3984ef0b72831da8b3ece4745cac4f8575b19098","refsource":"CONFIRM","url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=3984ef0b72831da8b3ece4745cac4f8575b19098"},{"name":"https://www.openssl.org/news/secadv/20180612.txt","refsource":"CONFIRM","url":"https://www.openssl.org/news/secadv/20180612.txt"},{"name":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ea7abeeabf92b7aca160bdd0208636d4da69f4f4","refsource":"CONFIRM","url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ea7abeeabf92b7aca160bdd0208636d4da69f4f4"},{"name":"https://security.netapp.com/advisory/nta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13:29:00","lastModifiedDate":"2023-11-07 02:51:00","problem_types":["CWE-320"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/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:openssl:openssl:*:*:*:*:*:*:*:*","versionStartIncluding":"1.1.0","versionEndIncluding":"1.1.0h","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.2","versionEndIncluding":"1.0.2o","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:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*","cpe_name":[]},{"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":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*","versionStartIncluding":"8.9.0","versionEndExcluding":"8.11.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*","versionStartIncluding":"8.0.0","versionEndExcluding":"8.8.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*","versionStartIncluding":"10.0.0","versionEndExcluding":"10.9.0","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*","versionStartIncluding":"6.9.0","versionEndExcluding":"6.14.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*","versionStartIncluding":"6.0.0","versionEndExcluding":"6.8.1","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"732","Ordinal":"115661","Title":"CVE-2018-0732","CVE":"CVE-2018-0732","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"732","Ordinal":"1","NoteData":"During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).","Type":"Description","Title":null},{"CveYear":"2018","CveId":"732","Ordinal":"2","NoteData":"2018-06-12","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"732","Ordinal":"3","NoteData":"2021-06-08","Type":"Other","Title":"Modified"}]}}}