{
    "CVE_data_meta": {
        "ASSIGNER": "openssl-security@openssl.org",
        "DATE_PUBLIC": "2018-10-30",
        "ID": "CVE-2018-0734",
        "STATE": "PUBLIC",
        "TITLE": "Timing attack against DSA"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "OpenSSL",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Fixed in OpenSSL 1.1.1a (Affected 1.1.1)"
                                        },
                                        {
                                            "version_value": "Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i)"
                                        },
                                        {
                                            "version_value": "Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p)"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "OpenSSL"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Samuel Weiser"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p)."
            }
        ]
    },
    "impact": [
        {
            "lang": "eng",
            "url": "https://www.openssl.org/policies/secpolicy.html#Low",
            "value": "Low"
        }
    ],
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Constant time issue"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html",
                "refsource": "CONFIRM",
                "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
            },
            {
                "name": "USN-3840-1",
                "refsource": "UBUNTU",
                "url": "https://usn.ubuntu.com/3840-1/"
            },
            {
                "name": "DSA-4355",
                "refsource": "DEBIAN",
                "url": "https://www.debian.org/security/2018/dsa-4355"
            },
            {
                "name": "https://security.netapp.com/advisory/ntap-20181105-0002/",
                "refsource": "CONFIRM",
                "url": "https://security.netapp.com/advisory/ntap-20181105-0002/"
            },
            {
                "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8abfe72e8c1de1b95f50aa0d9134803b4d00070f",
                "refsource": "CONFIRM",
                "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8abfe72e8c1de1b95f50aa0d9134803b4d00070f"
            },
            {
                "name": "https://www.tenable.com/security/tns-2018-17",
                "refsource": "CONFIRM",
                "url": "https://www.tenable.com/security/tns-2018-17"
            },
            {
                "name": "https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/",
                "refsource": "CONFIRM",
                "url": "https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/"
            },
            {
                "name": "https://www.tenable.com/security/tns-2018-16",
                "refsource": "CONFIRM",
                "url": "https://www.tenable.com/security/tns-2018-16"
            },
            {
                "name": "105758",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/105758"
            },
            {
                "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ef11e19d1365eea2b1851e6f540a0bf365d303e7",
                "refsource": "CONFIRM",
                "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=ef11e19d1365eea2b1851e6f540a0bf365d303e7"
            },
            {
                "name": "DSA-4348",
                "refsource": "DEBIAN",
                "url": "https://www.debian.org/security/2018/dsa-4348"
            },
            {
                "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=43e6a58d4991a451daf4891ff05a48735df871ac",
                "refsource": "CONFIRM",
                "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=43e6a58d4991a451daf4891ff05a48735df871ac"
            },
            {
                "name": "https://www.openssl.org/news/secadv/20181030.txt",
                "refsource": "CONFIRM",
                "url": "https://www.openssl.org/news/secadv/20181030.txt"
            },
            {
                "name": "https://security.netapp.com/advisory/ntap-20190118-0002/",
                "refsource": "CONFIRM",
                "url": "https://security.netapp.com/advisory/ntap-20190118-0002/"
            },
            {
                "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20190423-0002/",
                "url": "https://security.netapp.com/advisory/ntap-20190423-0002/"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2019:1547",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.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"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2019:1814",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:2304",
                "url": "https://access.redhat.com/errata/RHSA-2019:2304"
            },
            {
                "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/"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3700",
                "url": "https://access.redhat.com/errata/RHSA-2019:3700"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3933",
                "url": "https://access.redhat.com/errata/RHSA-2019:3933"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3935",
                "url": "https://access.redhat.com/errata/RHSA-2019:3935"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3932",
                "url": "https://access.redhat.com/errata/RHSA-2019:3932"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2020.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2020.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuapr2020.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuapr2020.html"
            }
        ]
    }
}