{
    "CVE_data_meta": {
        "ASSIGNER": "security@debian.org",
        "ID": "CVE-2018-0495",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "side-channel attack"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965",
                "refsource": "MISC",
                "url": "https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965"
            },
            {
                "name": "1041144",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id/1041144"
            },
            {
                "name": "USN-3850-1",
                "refsource": "UBUNTU",
                "url": "https://usn.ubuntu.com/3850-1/"
            },
            {
                "name": "1041147",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id/1041147"
            },
            {
                "name": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/",
                "refsource": "MISC",
                "url": "https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/"
            },
            {
                "name": "USN-3689-1",
                "refsource": "UBUNTU",
                "url": "https://usn.ubuntu.com/3689-1/"
            },
            {
                "name": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html",
                "refsource": "MISC",
                "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
            },
            {
                "name": "USN-3689-2",
                "refsource": "UBUNTU",
                "url": "https://usn.ubuntu.com/3689-2/"
            },
            {
                "name": "USN-3692-2",
                "refsource": "UBUNTU",
                "url": "https://usn.ubuntu.com/3692-2/"
            },
            {
                "name": "[debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update",
                "refsource": "MLIST",
                "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html"
            },
            {
                "name": "DSA-4231",
                "refsource": "DEBIAN",
                "url": "https://www.debian.org/security/2018/dsa-4231"
            },
            {
                "name": "RHSA-2018:3505",
                "refsource": "REDHAT",
                "url": "https://access.redhat.com/errata/RHSA-2018:3505"
            },
            {
                "name": "USN-3850-2",
                "refsource": "UBUNTU",
                "url": "https://usn.ubuntu.com/3850-2/"
            },
            {
                "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": "https://dev.gnupg.org/T4011",
                "refsource": "MISC",
                "url": "https://dev.gnupg.org/T4011"
            },
            {
                "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": "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": "REDHAT",
                "name": "RHSA-2019:2237",
                "url": "https://access.redhat.com/errata/RHSA-2019:2237"
            }
        ]
    }
}