{ "CVE_data_meta": { "ASSIGNER": "openssl-security@openssl.org", "DATE_PUBLIC": "2018-06-12", "ID": "CVE-2018-0732", "STATE": "PUBLIC", "TITLE": "Client DoS due to large DH parameter" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "OpenSSL", "version": { "version_data": [ { "version_value": "Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h)" }, { "version_value": "Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o)" } ] } } ] }, "vendor_name": "OpenSSL" } ] } }, "credit": [ { "lang": "eng", "value": "Guido Vranken" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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)." } ] }, "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/ntap-20190118-0002/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20190118-0002/" }, { "refsource": "CONFIRM", "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-419820.pdf" } ] } }