Vulnerability-Lookup

UBUNTU-CVE-2020-15666 (CVE-2020-15666)

Vulnerability from osv_ubuntu – Published: 2020-08-26 00:00 – Updated: 2026-04-22 07:39 – Source website

Details

When trying to load a non-video in an audio/video context the exact status code (200, 302, 404, 500, 412, 403, etc.) was disclosed via the MediaError Message. This level of information leakage is inconsistent with the standardized onerror/onsuccess disclosure and can lead to inferring login status to services or device discovery on a local network among other attacks. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2020-15666	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://ubuntu.com/security/notices/USN-4474-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2020-15666	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "firefox",
            "binary_version": "80.0+build2-0ubuntu0.16.04.1"
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          },
          {
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            "binary_version": "80.0+build2-0ubuntu0.16.04.1"
          }
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      },
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        "name": "firefox",
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            "binary_name": "firefox-mozsymbols",
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        "purl": "pkg:deb/ubuntu/firefox@80.0+build2-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
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            {
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            }
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      "package": {
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        "name": "mozjs52",
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      },
      "ranges": [
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        "52.3.1-7fakesync1",
        "52.8.1-0ubuntu0.18.04.1",
        "52.9.1-0ubuntu0.18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmozjs-38-0",
            "binary_version": "38.8.0~repack1-0ubuntu4"
          }
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      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "mozjs38",
        "purl": "pkg:deb/ubuntu/mozjs38@38.8.0~repack1-0ubuntu4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
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            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "38.8.0~repack1-0ubuntu3",
        "38.8.0~repack1-0ubuntu4"
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "firefox",
            "binary_version": "80.0+build2-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "firefox-geckodriver",
            "binary_version": "80.0+build2-0ubuntu0.20.04.1"
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      },
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      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
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      },
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      ],
      "versions": [
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        "52.9.1-1ubuntu3"
      ]
    }
  ],
  "aliases": [],
  "details": "When trying to load a non-video in an audio/video context the exact status code (200, 302, 404, 500, 412, 403, etc.) was disclosed via the MediaError Message. This level of information leakage is inconsistent with the standardized onerror/onsuccess disclosure and can lead to inferring login status to services or device discovery on a local network among other attacks. This vulnerability affects Firefox \u003c 80 and Firefox for Android \u003c 80.",
  "id": "UBUNTU-CVE-2020-15666",
  "modified": "2026-04-22T07:39:28Z",
  "published": "2020-08-26T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15666"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-36/#CVE-2020-15666"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4474-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-15666"
    }
  ],
  "related": [
    "USN-4474-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-15666"
  ]
}

CVE-2020-15666 (GCVE-0-2020-15666)

Vulnerability from cvelistv5 – Published: 2020-10-01 18:42 – Updated: 2024-08-04 13:22

Summary

Severity

No CVSS data available.

CWE

MediaError message property leaks cross-origin response status

Assigner

mozilla mitre root

References

3 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
https://bugzilla.mozilla.org/show_bug.cgi?id=1450853	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Affected: unspecified , < 80 (custom)
Mozilla	Firefox for Android	Affected: unspecified , < 80 (custom)

Show details on NVD website

JSON

To clipboard

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                "vendor_name": "Mozilla"
              }
            ]
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        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "When trying to load a non-video in an audio/video context the exact status code (200, 302, 404, 500, 412, 403, etc.) was disclosed via the MediaError Message. This level of information leakage is inconsistent with the standardized onerror/onsuccess disclosure and can lead to inferring login status to services or device discovery on a local network among other attacks. This vulnerability affects Firefox \u003c 80 and Firefox for Android \u003c 80."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "MediaError message property leaks cross-origin response status"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2020-39/",
              "refsource": "MISC",
              "url": "https://www.mozilla.org/security/advisories/mfsa2020-39/"
            },
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2020-36/",
              "refsource": "MISC",
              "url": "https://www.mozilla.org/security/advisories/mfsa2020-36/"
            },
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1450853",
              "refsource": "MISC",
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1450853"
            }
          ]
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2020-15666",
    "datePublished": "2020-10-01T18:42:58.000Z",
    "dateReserved": "2020-07-10T00:00:00.000Z",
    "dateUpdated": "2024-08-04T13:22:30.634Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

USN-4474-1 (UBUNTU-CVE-2020-6829)

Vulnerability from osv_ubuntu – Published: 2020-08-26 18:29 – Updated: 2026-04-22 07:36 – Source website

Summary

firefox vulnerabilities

Details

Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, trick the user in to installing a malicious extension, spoof the URL bar, leak sensitive information between origins, or execute arbitrary code. (CVE-2020-15664, CVE-2020-15665, CVE-2020-15666, CVE-2020-15670)

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)

A data race was discovered when importing certificate information in to the trust store. An attacker could potentially exploit this to cause an unspecified impact. (CVE-2020-15668)

References

URL

Type

	https://ubuntu.com/security/notices/USN-4474-1	ADVISORY
	https://ubuntu.com/security/CVE-2020-6829	REPORT
	https://ubuntu.com/security/CVE-2020-12400	REPORT
	https://ubuntu.com/security/CVE-2020-12401	REPORT
	https://ubuntu.com/security/CVE-2020-15664	REPORT
	https://ubuntu.com/security/CVE-2020-15665	REPORT
	https://ubuntu.com/security/CVE-2020-15666	REPORT
	https://ubuntu.com/security/CVE-2020-15668	REPORT
	https://ubuntu.com/security/CVE-2020-15670	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
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              "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",
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                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
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              "severity": [
                {
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
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            {
              "id": "CVE-2020-12401",
              "severity": [
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                },
                {
                  "score": "medium",
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              ]
            },
            {
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                  "type": "CVSS_V3"
                },
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            },
            {
              "id": "CVE-2020-15665",
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                },
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                }
              ]
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              "id": "CVE-2020-15668",
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              "id": "CVE-2020-15670",
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                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "firefox",
            "binary_version": "80.0+build2-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "firefox-geckodriver",
            "binary_version": "80.0+build2-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "firefox-mozsymbols",
            "binary_version": "80.0+build2-0ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "firefox",
        "purl": "pkg:deb/ubuntu/firefox@80.0+build2-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "80.0+build2-0ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "69.0.3+build1-0ubuntu1",
        "70.0+build2-0ubuntu1",
        "70.0+build2-0ubuntu2",
        "70.0.1+build1-0ubuntu2",
        "71.0+build2-0ubuntu2",
        "71.0+build5-0ubuntu1",
        "72.0.1+build1-0ubuntu1",
        "72.0.2+build1-0ubuntu1",
        "73.0+build1-0ubuntu1",
        "73.0+build2-0ubuntu1",
        "73.0+build3-0ubuntu1",
        "73.0.1+build1-0ubuntu1",
        "74.0+build1-0ubuntu1",
        "74.0+build2-0ubuntu1",
        "74.0+build2-0ubuntu2",
        "74.0+build3-0ubuntu1",
        "75.0+build3-0ubuntu1",
        "76.0+build2-0ubuntu0.20.04.1",
        "76.0.1+build1-0ubuntu0.20.04.1",
        "77.0.1+build1-0ubuntu0.20.04.1",
        "78.0.1+build1-0ubuntu0.20.04.1",
        "78.0.2+build2-0ubuntu0.20.04.1",
        "79.0+build1-0ubuntu0.20.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Multiple security issues were discovered in Firefox. If a user were\ntricked in to opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, trick the user\nin to installing a malicious extension, spoof the URL bar, leak sensitive\ninformation between origins, or execute arbitrary code. (CVE-2020-15664,\nCVE-2020-15665, CVE-2020-15666, CVE-2020-15670)\n\nIt 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\nA data race was discovered when importing certificate information in to\nthe trust store. An attacker could potentially exploit this to cause an\nunspecified impact. (CVE-2020-15668)\n",
  "id": "USN-4474-1",
  "modified": "2026-04-22T07:36:39Z",
  "published": "2020-08-26T18:29:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4474-1"
    },
    {
      "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"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15664"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15665"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15666"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15668"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15670"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "firefox vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-6829",
    "UBUNTU-CVE-2020-12400",
    "UBUNTU-CVE-2020-12401",
    "UBUNTU-CVE-2020-15664",
    "UBUNTU-CVE-2020-15665",
    "UBUNTU-CVE-2020-15666",
    "UBUNTU-CVE-2020-15668",
    "UBUNTU-CVE-2020-15670"
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2020-15666 (CVE-2020-15666)

CVE-2020-15666 (GCVE-0-2020-15666)

USN-4474-1 (UBUNTU-CVE-2020-6829)

Tags

Sightings

Nomenclature

Related by attack behaviour