vuln-ubuntu/data/osv/usn/USN-4504-1.json

{
  "schema_version": "1.7.0",
  "id": "USN-4504-1",
  "summary": "openssl, openssl1.0 vulnerabilities",
  "details": "Robert Merget, Marcus Brinkmann, Nimrod Aviram, and Juraj Somorovsky\ndiscovered that certain Diffie-Hellman ciphersuites in the TLS\nspecification and implemented by OpenSSL contained a flaw. A remote\nattacker could possibly use this issue to eavesdrop on encrypted\ncommunications. This was fixed in this update by removing the insecure\nciphersuites from OpenSSL. (CVE-2020-1968)\n\nCesar Pereida Garc\u00eda, Sohaib ul Hassan, Nicola Tuveri, Iaroslav Gridin,\nAlejandro Cabrera Aldaya, and Billy Brumley discovered that OpenSSL\nincorrectly handled ECDSA signatures. An attacker could possibly use this\nissue to perform a timing side-channel attack and recover private ECDSA\nkeys. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-1547)\n\nGuido Vranken discovered that OpenSSL incorrectly performed the x86_64\nMontgomery squaring procedure. While unlikely, a remote attacker could\npossibly use this issue to recover private keys. This issue only affected\nUbuntu 18.04 LTS. (CVE-2019-1551)\n\nBernd Edlinger discovered that OpenSSL incorrectly handled certain\ndecryption functions. In certain scenarios, a remote attacker could\npossibly use this issue to perform a padding oracle attack and decrypt\ntraffic. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-1563)\n\n",
  "aliases": [],
  "upstream": [
    "UBUNTU-CVE-2019-1547",
    "UBUNTU-CVE-2019-1551",
    "UBUNTU-CVE-2019-1563",
    "UBUNTU-CVE-2020-1968"
  ],
  "related": [],
  "published": "2020-09-16T13:58:04Z",
  "modified": "2026-04-27T14:11:25Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "openssl",
        "purl": "pkg:deb/ubuntu/openssl@1.0.2g-1ubuntu4.17?arch=source&distro=xenial"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.2g-1ubuntu4.17"
            }
          ]
        }
      ],
      "versions": [
        "1.0.2d-0ubuntu1",
        "1.0.2d-0ubuntu2",
        "1.0.2e-1ubuntu1",
        "1.0.2f-2ubuntu1",
        "1.0.2g-1ubuntu2",
        "1.0.2g-1ubuntu3",
        "1.0.2g-1ubuntu4",
        "1.0.2g-1ubuntu4.1",
        "1.0.2g-1ubuntu4.2",
        "1.0.2g-1ubuntu4.4",
        "1.0.2g-1ubuntu4.5",
        "1.0.2g-1ubuntu4.6",
        "1.0.2g-1ubuntu4.8",
        "1.0.2g-1ubuntu4.9",
        "1.0.2g-1ubuntu4.10",
        "1.0.2g-1ubuntu4.11",
        "1.0.2g-1ubuntu4.12",
        "1.0.2g-1ubuntu4.13",
        "1.0.2g-1ubuntu4.14",
        "1.0.2g-1ubuntu4.15",
        "1.0.2g-1ubuntu4.16"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libssl1.0.0",
            "binary_version": "1.0.2g-1ubuntu4.17"
          },
          {
            "binary_name": "openssl",
            "binary_version": "1.0.2g-1ubuntu4.17"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:16.04:LTS",
          "cves": [
            {
              "id": "CVE-2020-1968",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "low"
                }
              ]
            }
          ]
        }
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "openssl1.0",
        "purl": "pkg:deb/ubuntu/openssl1.0@1.0.2n-1ubuntu5.4?arch=source&distro=bionic"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.2n-1ubuntu5.4"
            }
          ]
        }
      ],
      "versions": [
        "1.0.2n-1ubuntu2",
        "1.0.2n-1ubuntu3",
        "1.0.2n-1ubuntu4",
        "1.0.2n-1ubuntu5",
        "1.0.2n-1ubuntu5.1",
        "1.0.2n-1ubuntu5.2",
        "1.0.2n-1ubuntu5.3"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libssl1.0.0",
            "binary_version": "1.0.2n-1ubuntu5.4"
          },
          {
            "binary_name": "openssl1.0",
            "binary_version": "1.0.2n-1ubuntu5.4"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:18.04:LTS",
          "cves": [
            {
              "id": "CVE-2019-1547",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "low"
                }
              ]
            },
            {
              "id": "CVE-2019-1551",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "low"
                }
              ]
            },
            {
              "id": "CVE-2019-1563",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "low"
                }
              ]
            },
            {
              "id": "CVE-2020-1968",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                  "type": "Ubuntu",
                  "score": "low"
                }
              ]
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4504-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-1547"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-1551"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-1563"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-1968"
    }
  ]
}