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USN-3689-1 (UBUNTU-CVE-2018-0495)

Vulnerability from osv_ubuntu – Published: 2018-06-19 15:17 – Updated: 2026-04-22 07:36 – Source website
VLAI
Summary
libgcrypt11, libgcrypt20 vulnerability
Details

Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel attack. A local attacker could possibly use this attack to recover ECDSA private keys.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-0495",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgcrypt11",
            "binary_version": "1.5.3-2ubuntu4.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "libgcrypt11",
        "purl": "pkg:deb/ubuntu/libgcrypt11@1.5.3-2ubuntu4.6?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.3-2ubuntu4.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.0-3ubuntu3",
        "1.5.3-2ubuntu1",
        "1.5.3-2ubuntu4",
        "1.5.3-2ubuntu4.1",
        "1.5.3-2ubuntu4.2",
        "1.5.3-2ubuntu4.3",
        "1.5.3-2ubuntu4.4",
        "1.5.3-2ubuntu4.5"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-0495",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.6.5-2ubuntu0.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.6.5-2ubuntu0.5?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.5-2ubuntu0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.3-2ubuntu1",
        "1.6.4-3",
        "1.6.4-4",
        "1.6.4-5",
        "1.6.5-2",
        "1.6.5-2ubuntu0.2",
        "1.6.5-2ubuntu0.3",
        "1.6.5-2ubuntu0.4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-0495",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgcrypt20",
            "binary_version": "1.8.1-4ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libgcrypt20",
        "purl": "pkg:deb/ubuntu/libgcrypt20@1.8.1-4ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.1-4ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.8-2ubuntu1",
        "1.7.9-1",
        "1.8.1-4",
        "1.8.1-4ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel\nattack. A local attacker could possibly use this attack to recover ECDSA\nprivate keys.\n",
  "id": "USN-3689-1",
  "modified": "2026-04-22T07:36:35Z",
  "published": "2018-06-19T15:17:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3689-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-0495"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libgcrypt11, libgcrypt20 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2018-0495"
  ]
}



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