GSD-2019-11763

Vulnerability from gsd - Updated: 2023-12-13 01:24
Details
Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.
Aliases
Aliases
CVE-2019-11763
To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-11763",
    "description": "Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox \u003c 70, Thunderbird \u003c 68.2, and Firefox ESR \u003c 68.2.",
    "id": "GSD-2019-11763",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-11763.html",
      "https://www.debian.org/security/2019/dsa-4571",
      "https://www.debian.org/security/2019/dsa-4549",
      "https://access.redhat.com/errata/RHSA-2019:3756",
      "https://access.redhat.com/errata/RHSA-2019:3281",
      "https://access.redhat.com/errata/RHSA-2019:3237",
      "https://access.redhat.com/errata/RHSA-2019:3210",
      "https://access.redhat.com/errata/RHSA-2019:3196",
      "https://access.redhat.com/errata/RHSA-2019:3193",
      "https://ubuntu.com/security/CVE-2019-11763",
      "https://advisories.mageia.org/CVE-2019-11763.html",
      "https://security.archlinux.org/CVE-2019-11763",
      "https://linux.oracle.com/cve/CVE-2019-11763.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-11763"
      ],
      "details": "Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox \u003c 70, Thunderbird \u003c 68.2, and Firefox ESR \u003c 68.2.",
      "id": "GSD-2019-11763",
      "modified": "2023-12-13T01:24:02.603336Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2019-11763",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Firefox",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "before 70"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Thunderbird",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "before 68.2"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Firefox ESR",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "before 68.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Mozilla"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox \u003c 70, Thunderbird \u003c 68.2, and Firefox ESR \u003c 68.2."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Incorrect HTML parsing results in XSS bypass technique"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.mozilla.org/security/advisories/mfsa2019-35/",
            "refsource": "CONFIRM",
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-35/"
          },
          {
            "name": "https://www.mozilla.org/security/advisories/mfsa2019-33/",
            "refsource": "CONFIRM",
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-33/"
          },
          {
            "name": "https://www.mozilla.org/security/advisories/mfsa2019-34/",
            "refsource": "CONFIRM",
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-34/"
          },
          {
            "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1584216",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1584216"
          },
          {
            "name": "GLSA-202003-10",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202003-10"
          },
          {
            "name": "USN-4335-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4335-1/"
          }
        ]
      }
    },
    "mozilla.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2019-11763"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Thunderbird",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "68.2"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Firefox",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "70"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Firefox ESR",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "68.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Mozilla"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Thunderbird \u003c 68.2, Firefox \u003c 70, and Firefox ESR \u003c 68.2."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Incorrect HTML parsing results in XSS bypass technique"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-34/"
          },
          {
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-33/"
          },
          {
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-35/"
          },
          {
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1584216"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "68.2",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "68.2",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "70.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2019-11763"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Failure to correctly handle null bytes when processing HTML entities resulted in Firefox incorrectly parsing these entities. This could have led to HTML comment text being treated as HTML which could have led to XSS in a web application under certain conditions. It could have also led to HTML entities being masked from filters - enabling the use of entities to mask the actual characters of interest from filters. This vulnerability affects Firefox \u003c 70, Thunderbird \u003c 68.2, and Firefox ESR \u003c 68.2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-79"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2019-35/",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.mozilla.org/security/advisories/mfsa2019-35/"
            },
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1584216",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Permissions Required"
              ],
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1584216"
            },
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2019-34/",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.mozilla.org/security/advisories/mfsa2019-34/"
            },
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2019-33/",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.mozilla.org/security/advisories/mfsa2019-33/"
            },
            {
              "name": "GLSA-202003-10",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202003-10"
            },
            {
              "name": "USN-4335-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://usn.ubuntu.com/4335-1/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2023-02-03T17:27Z",
      "publishedDate": "2020-01-08T20:15Z"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.