{
   "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" : "[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" : "https://dev.gnupg.org/T4011",
            "refsource" : "MISC",
            "url" : "https://dev.gnupg.org/T4011"
         },
         {
            "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" : "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html",
            "refsource" : "MISC",
            "url" : "https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html"
         },
         {
            "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" : "DSA-4231",
            "refsource" : "DEBIAN",
            "url" : "https://www.debian.org/security/2018/dsa-4231"
         },
         {
            "name" : "RHSA-2018:3221",
            "refsource" : "REDHAT",
            "url" : "https://access.redhat.com/errata/RHSA-2018:3221"
         },
         {
            "name" : "RHSA-2018:3505",
            "refsource" : "REDHAT",
            "url" : "https://access.redhat.com/errata/RHSA-2018:3505"
         },
         {
            "name" : "USN-3689-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3689-1/"
         },
         {
            "name" : "USN-3689-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3689-2/"
         },
         {
            "name" : "USN-3692-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3692-1/"
         },
         {
            "name" : "USN-3692-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3692-2/"
         },
         {
            "name" : "USN-3850-1",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3850-1/"
         },
         {
            "name" : "USN-3850-2",
            "refsource" : "UBUNTU",
            "url" : "https://usn.ubuntu.com/3850-2/"
         },
         {
            "name" : "1041144",
            "refsource" : "SECTRACK",
            "url" : "http://www.securitytracker.com/id/1041144"
         },
         {
            "name" : "1041147",
            "refsource" : "SECTRACK",
            "url" : "http://www.securitytracker.com/id/1041147"
         }
      ]
   }
}