USN-4397-1 (UBUNTU-CVE-2019-17023)

Vulnerability from osv_ubuntu – Published: 2020-06-16 16:56 – Updated: 2026-04-22 07:36 – Source website
VLAI
Summary
nss vulnerabilities
Details

It was discovered that NSS incorrectly handled the TLS State Machine. A remote attacker could possibly use this issue to cause NSS to hang, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2019-17023)

Cesar Pereida Garcia discovered that NSS incorrectly handled DSA key generation. A local attacker could possibly use this issue to perform a timing attack and recover DSA keys. (CVE-2020-12399)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.11?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.16.04.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.19.2-1ubuntu1",
        "2:3.19.2.1-0ubuntu1",
        "2:3.21-1ubuntu2",
        "2:3.21-1ubuntu3",
        "2:3.21-1ubuntu4",
        "2:3.23-0ubuntu0.16.04.1",
        "2:3.26.2-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.1",
        "2:3.28.4-0ubuntu0.16.04.2",
        "2:3.28.4-0ubuntu0.16.04.3",
        "2:3.28.4-0ubuntu0.16.04.4",
        "2:3.28.4-0ubuntu0.16.04.5",
        "2:3.28.4-0ubuntu0.16.04.6",
        "2:3.28.4-0ubuntu0.16.04.8",
        "2:3.28.4-0ubuntu0.16.04.9",
        "2:3.28.4-0ubuntu0.16.04.10"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-17023",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.35-2ubuntu2.8"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.35-2ubuntu2.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.8?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.35-2ubuntu2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.32-1ubuntu3",
        "2:3.34-1ubuntu1",
        "2:3.35-2ubuntu2",
        "2:3.35-2ubuntu2.1",
        "2:3.35-2ubuntu2.2",
        "2:3.35-2ubuntu2.3",
        "2:3.35-2ubuntu2.5",
        "2:3.35-2ubuntu2.6",
        "2:3.35-2ubuntu2.7"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-12399",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.49.1-1ubuntu1.1"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.49.1-1ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.49.1-1ubuntu1.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.49.1-1ubuntu1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.45-1ubuntu2",
        "2:3.47-1ubuntu1",
        "2:3.47-1ubuntu2",
        "2:3.48-1ubuntu1",
        "2:3.49.1-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that NSS incorrectly handled the TLS State Machine. A\nremote attacker could possibly use this issue to cause NSS to hang,\nresulting in a denial of service. This issue only affected Ubuntu 18.04 LTS\nand Ubuntu 19.10. (CVE-2019-17023)\n\nCesar Pereida Garcia discovered that NSS incorrectly handled DSA key\ngeneration. A local attacker could possibly use this issue to perform a\ntiming attack and recover DSA keys. (CVE-2020-12399)\n",
  "id": "USN-4397-1",
  "modified": "2026-04-22T07:36:38Z",
  "published": "2020-06-16T16:56:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4397-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-17023"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12399"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "nss vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-17023",
    "UBUNTU-CVE-2020-12399"
  ]
}



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