gsd-2021-23999
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Aliases
Aliases
CVE-2021-23999


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-23999",
    "description": "If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR \u003c 78.10, Thunderbird \u003c 78.10, and Firefox \u003c 88.",
    "id": "GSD-2021-23999",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-23999.html",
      "https://www.debian.org/security/2021/dsa-4897",
      "https://www.debian.org/security/2021/dsa-4895",
      "https://access.redhat.com/errata/RHSA-2021:1363",
      "https://access.redhat.com/errata/RHSA-2021:1362",
      "https://access.redhat.com/errata/RHSA-2021:1361",
      "https://access.redhat.com/errata/RHSA-2021:1360",
      "https://access.redhat.com/errata/RHSA-2021:1353",
      "https://access.redhat.com/errata/RHSA-2021:1352",
      "https://access.redhat.com/errata/RHSA-2021:1351",
      "https://access.redhat.com/errata/RHSA-2021:1350",
      "https://ubuntu.com/security/CVE-2021-23999",
      "https://advisories.mageia.org/CVE-2021-23999.html",
      "https://security.archlinux.org/CVE-2021-23999",
      "https://linux.oracle.com/cve/CVE-2021-23999.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-23999"
      ],
      "details": "If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR \u003c 78.10, Thunderbird \u003c 78.10, and Firefox \u003c 88.",
      "id": "GSD-2021-23999",
      "modified": "2023-12-13T01:23:29.749723Z",
      "schema_version": "1.4.0"
    }
  },
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                    }
                  },
                  {
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
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                "value": "Blob URLs may have been granted additional privileges"
              }
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          },
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          },
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            "refsource": "MISC",
            "url": "https://www.mozilla.org/security/advisories/mfsa2021-15/"
          },
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                  {
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
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              }
            ]
          }
        ]
      },
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            "url": "https://www.mozilla.org/security/advisories/mfsa2021-16/"
          },
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          },
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          }
        ]
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "cpe_match": [
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                "cpe_name": [],
                "versionEndExcluding": "88.0",
                "vulnerable": true
              },
              {
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                "cpe_name": [],
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              },
              {
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            "operator": "OR"
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          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2021-23999"
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        "description": {
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              "value": "If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR \u003c 78.10, Thunderbird \u003c 78.10, and Firefox \u003c 88."
            }
          ]
        },
        "problemtype": {
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              "description": [
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                  "value": "CWE-269"
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                {
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                  "value": "CWE-697"
                }
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        "references": {
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              "tags": [
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              ],
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            },
            {
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-04-26T15:31Z",
      "publishedDate": "2021-06-24T14:15Z"
    }
  }
}


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