{
  "cveId": "CVE-2018-0495",
  "url": "https://patchblox.com/security/cve/CVE-2018-0495",
  "summary": "CVE-2018-0495 is fixed in 7 products on 1 platform, first by libgcrypt20 1.8.1-4ubuntu1.1, released June 12, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libgcrypt20: 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...",
  "description": "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.",
  "published": "2018-06-12T17:00:00Z",
  "severity": "Low",
  "epss": 0.00869,
  "epssPercentile": 0.58961,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libgcrypt20",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.8.1-4ubuntu1.1",
      "fix": "libgcrypt20 1.8.1-4ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libgcrypt20-1.8.1-4ubuntu1.1",
      "released": "2018-06-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnss3",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:3.35-2ubuntu2.1",
      "fix": "libnss3 2:3.35-2ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libnss3-2-3.35-2ubuntu2.1",
      "released": "2018-12-11T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnss3-tools",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:3.35-2ubuntu2.1",
      "fix": "libnss3-tools 2:3.35-2ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libnss3-tools-2-3.35-2ubuntu2.1",
      "released": "2018-12-11T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssl1.0.0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.2n-1ubuntu5.1",
      "fix": "libssl1.0.0 1.0.2n-1ubuntu5.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libssl1.0.0-1.0.2n-1ubuntu5.1",
      "released": "2018-06-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libssl1.1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.1.0g-2ubuntu4.1",
      "fix": "libssl1.1 1.1.0g-2ubuntu4.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libssl1.1-1.1.0g-2ubuntu4.1",
      "released": "2018-06-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssl",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.1.0g-2ubuntu4.1",
      "fix": "openssl 1.1.0g-2ubuntu4.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openssl-1.1.0g-2ubuntu4.1",
      "released": "2018-06-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "openssl1.0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.2n-1ubuntu5.1",
      "fix": "openssl1.0 1.0.2n-1ubuntu5.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-openssl1.0-1.0.2n-1ubuntu5.1",
      "released": "2018-06-12T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T12:40:37Z"
}