usn-4455-1
Vulnerability from osv_ubuntu
Published
2020-08-10 17:28
Modified
2026-06-29 10:52
Summary
nss vulnerabilities
Details

It was discovered that NSS incorrectly handled certain signatures. An attacker could possibly use this issue to expose sensitive information. (CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6829",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12400",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12401",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libnss3",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm7"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm7"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm7"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.14.04.5+esm7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.14.04.5+esm7?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.14.04.5+esm7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.15.1-1ubuntu1",
        "2:3.15.2-1",
        "2:3.15.3-1",
        "2:3.15.3.1-1",
        "2:3.15.3.1-1.1",
        "2:3.15.3.1-1.1ubuntu1",
        "2:3.15.4-1ubuntu3",
        "2:3.15.4-1ubuntu4",
        "2:3.15.4-1ubuntu5",
        "2:3.15.4-1ubuntu6",
        "2:3.15.4-1ubuntu7",
        "2:3.15.4-1ubuntu7.1",
        "2:3.17-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.1",
        "2:3.17.1-0ubuntu0.14.04.2",
        "2:3.17.4-0ubuntu0.14.04.1",
        "2:3.19.2-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.1",
        "2:3.19.2.1-0ubuntu0.14.04.2",
        "2:3.21-0ubuntu0.14.04.1",
        "2:3.21-0ubuntu0.14.04.2",
        "2:3.23-0ubuntu0.14.04.1",
        "2:3.26.2-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.1",
        "2:3.28.4-0ubuntu0.14.04.2",
        "2:3.28.4-0ubuntu0.14.04.3",
        "2:3.28.4-0ubuntu0.14.04.4",
        "2:3.28.4-0ubuntu0.14.04.5",
        "2:3.28.4-0ubuntu0.14.04.5+esm1",
        "2:3.28.4-0ubuntu0.14.04.5+esm2",
        "2:3.28.4-0ubuntu0.14.04.5+esm3",
        "2:3.28.4-0ubuntu0.14.04.5+esm4",
        "2:3.28.4-0ubuntu0.14.04.5+esm5",
        "2:3.28.4-0ubuntu0.14.04.5+esm6"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6829",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12400",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12401",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/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": "2:3.28.4-0ubuntu0.16.04.13"
          },
          {
            "binary_name": "libnss3-1d",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.13"
          },
          {
            "binary_name": "libnss3-nssdb",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.13"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.28.4-0ubuntu0.16.04.13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.28.4-0ubuntu0.16.04.13?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.28.4-0ubuntu0.16.04.13"
            }
          ],
          "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",
        "2:3.28.4-0ubuntu0.16.04.11",
        "2:3.28.4-0ubuntu0.16.04.12"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6829",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12400",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12401",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/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": "2:3.35-2ubuntu2.11"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.35-2ubuntu2.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.35-2ubuntu2.11?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.35-2ubuntu2.11"
            }
          ],
          "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",
        "2:3.35-2ubuntu2.8",
        "2:3.35-2ubuntu2.9"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-6829",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12400",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12401",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/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": "2:3.49.1-1ubuntu1.4"
          },
          {
            "binary_name": "libnss3-tools",
            "binary_version": "2:3.49.1-1ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "nss",
        "purl": "pkg:deb/ubuntu/nss@2:3.49.1-1ubuntu1.4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:3.49.1-1ubuntu1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.45-1ubuntu2",
        "2:3.47-1ubuntu1",
        "2:3.47-1ubuntu2",
        "2:3.48-1ubuntu1",
        "2:3.49.1-1ubuntu1",
        "2:3.49.1-1ubuntu1.1",
        "2:3.49.1-1ubuntu1.2"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that NSS incorrectly handled certain signatures.\nAn attacker could possibly use this issue to expose sensitive information.\n(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)\n",
  "id": "USN-4455-1",
  "modified": "2026-06-29T10:52:46Z",
  "published": "2020-08-10T17:28:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4455-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-6829"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12400"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12401"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "nss vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-6829",
    "UBUNTU-CVE-2020-12400",
    "UBUNTU-CVE-2020-12401"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.