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          "name": "thunderbird-debugsource as a component of Red Hat Enterprise Linux 8.2.0.z",
          "product_id": "rhel-br-8.2.0.z.eus::appstream:thunderbird-debugsource"
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        "product_reference": "thunderbird-debugsource",
        "relates_to_product_reference": "rhel-br-8.2.0.z.eus::appstream"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "thunderbird.src as a component of Red Hat Enterprise Linux 6-els",
          "product_id": "rhel-6-els.els:thunderbird.src"
        },
        "product_reference": "thunderbird.src",
        "relates_to_product_reference": "rhel-6-els.els"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "thunderbird.src as a component of Red Hat Enterprise Linux 8.6",
          "product_id": "rhel-8.6.0:thunderbird.src"
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        "product_reference": "thunderbird.src",
        "relates_to_product_reference": "rhel-8.6.0"
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    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-4140",
      "cwe": {
        "id": "CWE-1021",
        "name": "Improper Restriction of Rendered UI Layers or Frames"
      },
      "discovery_date": "2022-01-11T00:00:00+00:00",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
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            "rhel-8.4.0.z.eus::appstream:firefox-debugsource",
            "rhel-8.4.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-8.4.0.z.eus::appstream:thunderbird-debugsource",
            "rhel-br-8.2.0.z.eus::appstream:firefox-debuginfo",
            "rhel-br-8.2.0.z.eus::appstream:firefox-debugsource",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-debugsource",
            "rhel-br-8.4.0.z.eus::appstream:firefox-debuginfo",
            "rhel-br-8.4.0.z.eus::appstream:firefox-debugsource",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-debugsource"
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        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.",
          "title": "Statement"
        },
        {
          "category": "description",
          "text": "The Mozilla Foundation Security Advisory describes this flaw as:\r\n\r\nIt was possible to construct specific XSLT markups that would enable someone to bypass an iframe sandbox.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
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          "rhel-6-els.els:firefox.src",
          "rhel-6-els.els:thunderbird",
          "rhel-6-els.els:thunderbird.src",
          "rhel-8.6.0:firefox",
          "rhel-8.6.0:firefox.src",
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        ],
        "known_not_affected": [
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          "rhel-8.4.0.z.eus::appstream:firefox-debugsource",
          "rhel-8.4.0.z.eus::appstream:thunderbird-debuginfo",
          "rhel-8.4.0.z.eus::appstream:thunderbird-debugsource",
          "rhel-br-8.2.0.z.eus::appstream:firefox-debuginfo",
          "rhel-br-8.2.0.z.eus::appstream:firefox-debugsource",
          "rhel-br-8.2.0.z.eus::appstream:thunderbird-debuginfo",
          "rhel-br-8.2.0.z.eus::appstream:thunderbird-debugsource",
          "rhel-br-8.4.0.z.eus::appstream:firefox-debuginfo",
          "rhel-br-8.4.0.z.eus::appstream:firefox-debugsource",
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          "rhel-br-8.4.0.z.eus::appstream:thunderbird-debugsource"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-4140"
        },
        {
          "category": "external",
          "summary": "nvd.nist.gov",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4140"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-4140"
        }
      ],
      "remediations": [
        {
          "category": "no_fix_planned",
          "details": "Out of support scope",
          "product_ids": [
            "rhel-6-els.els:firefox",
            "rhel-6-els.els:firefox.src",
            "rhel-6-els.els:thunderbird",
            "rhel-6-els.els:thunderbird.src"
          ]
        },
        {
          "category": "none_available",
          "details": "Affected",
          "product_ids": [
            "rhel-8.6.0:firefox",
            "rhel-8.6.0:firefox.src",
            "rhel-8.6.0:thunderbird",
            "rhel-8.6.0:thunderbird.src"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Apply advisory RHSA-2022:0124 as per vendors instructions.",
          "product_ids": [
            "rhel-7.9.z::client:firefox-0:91.5.0-1.el7_9",
            "rhel-7.9.z::client:firefox-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::client:firefox-debuginfo",
            "rhel-7.9.z::server:firefox-0:91.5.0-1.el7_9",
            "rhel-7.9.z::server:firefox-debuginfo",
            "rhel-7.9.z::workstation:firefox-0:91.5.0-1.el7_9",
            "rhel-7.9.z::workstation:firefox-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::workstation:firefox-debuginfo"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0124"
        },
        {
          "category": "vendor_fix",
          "details": "Apply advisory RHSA-2022:0125 as per vendors instructions.",
          "product_ids": [
            "rhel-8.1.0.z.e4s::appstream:firefox-0:91.5.0-1.el8_1",
            "rhel-8.1.0.z.e4s::appstream:firefox-0:91.5.0-1.el8_1.src",
            "rhel-8.1.0.z.e4s::appstream:firefox-debuginfo",
            "rhel-8.1.0.z.e4s::appstream:firefox-debugsource"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0125"
        },
        {
          "category": "vendor_fix",
          "details": "Apply advisory RHSA-2022:0132 as per vendors instructions.",
          "product_ids": [
            "rhel-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2",
            "rhel-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2.src",
            "rhel-8.2.0.z.eus::appstream:firefox-debuginfo",
            "rhel-8.2.0.z.eus::appstream:firefox-debugsource",
            "rhel-br-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2",
            "rhel-br-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2.src"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0132"
        },
        {
          "category": "vendor_fix",
          "date": "2022-01-12T12:04:06+00:00",
          "details": "Apply advisory RHSA-2022:0126 as per vendors instructions.",
          "product_ids": [
            "rhel-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4",
            "rhel-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4.src",
            "rhel-br-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4",
            "rhel-br-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4.src"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0126"
        },
        {
          "category": "vendor_fix",
          "date": "2022-01-12T11:59:09+00:00",
          "details": "Apply advisory RHSA-2022:0130 as per vendors instructions.",
          "product_ids": [
            "rhel-8.5.0.z::appstream:firefox-0:91.5.0-1.el8_5",
            "rhel-8.5.0.z::appstream:firefox-0:91.5.0-1.el8_5.src",
            "rhel-8.5.0.z::appstream:firefox-debuginfo",
            "rhel-8.5.0.z::appstream:firefox-debugsource"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0130"
        },
        {
          "category": "vendor_fix",
          "date": "2022-01-12T13:09:04+00:00",
          "details": "Apply advisory RHSA-2022:0127 as per vendors instructions.",
          "product_ids": [
            "rhel-7.9.z::client:thunderbird-0:91.5.0-1.el7_9",
            "rhel-7.9.z::client:thunderbird-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::client:thunderbird-debuginfo",
            "rhel-7.9.z::server:thunderbird-0:91.5.0-1.el7_9",
            "rhel-7.9.z::server:thunderbird-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::server:thunderbird-debuginfo",
            "rhel-7.9.z::workstation:thunderbird-0:91.5.0-1.el7_9",
            "rhel-7.9.z::workstation:thunderbird-debuginfo"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0127"
        },
        {
          "category": "vendor_fix",
          "date": "2022-01-12T12:04:13+00:00",
          "details": "Apply advisory RHSA-2022:0131 as per vendors instructions.",
          "product_ids": [
            "rhel-8.1.0.z.e4s::appstream:thunderbird-0:91.5.0-1.el8_1",
            "rhel-8.1.0.z.e4s::appstream:thunderbird-0:91.5.0-1.el8_1.src",
            "rhel-8.1.0.z.e4s::appstream:thunderbird-debuginfo",
            "rhel-8.1.0.z.e4s::appstream:thunderbird-debugsource"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0131"
        },
        {
          "category": "vendor_fix",
          "details": "Apply advisory RHSA-2022:0123 as per vendors instructions.",
          "product_ids": [
            "rhel-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2",
            "rhel-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2.src",
            "rhel-8.2.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-8.2.0.z.eus::appstream:thunderbird-debugsource",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2.src"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0123"
        },
        {
          "category": "vendor_fix",
          "date": "2022-01-12T12:21:24+00:00",
          "details": "Apply advisory RHSA-2022:0128 as per vendors instructions.",
          "product_ids": [
            "rhel-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4",
            "rhel-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4.src",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4.src"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0128"
        },
        {
          "category": "vendor_fix",
          "date": "2022-01-12T12:27:03+00:00",
          "details": "Apply advisory RHSA-2022:0129 as per vendors instructions.",
          "product_ids": [
            "rhel-8.5.0.z::appstream:thunderbird-0:91.5.0-1.el8_5",
            "rhel-8.5.0.z::appstream:thunderbird-0:91.5.0-1.el8_5.src",
            "rhel-8.5.0.z::appstream:thunderbird-debuginfo",
            "rhel-8.5.0.z::appstream:thunderbird-debugsource"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2022:0129"
        }
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        {
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "baseScore": 9.6,
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            "rhel-8.5.0.z::appstream:thunderbird-0:91.5.0-1.el8_5.src",
            "rhel-8.5.0.z::appstream:thunderbird-debuginfo",
            "rhel-8.5.0.z::appstream:thunderbird-debugsource",
            "rhel-8.6.0:firefox",
            "rhel-8.6.0:firefox.src",
            "rhel-8.6.0:thunderbird",
            "rhel-8.6.0:thunderbird.src",
            "rhel-br-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2",
            "rhel-br-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2.src",
            "rhel-br-8.2.0.z.eus::appstream:firefox-debuginfo",
            "rhel-br-8.2.0.z.eus::appstream:firefox-debugsource",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2.src",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-debugsource",
            "rhel-br-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4",
            "rhel-br-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4.src",
            "rhel-br-8.4.0.z.eus::appstream:firefox-debuginfo",
            "rhel-br-8.4.0.z.eus::appstream:firefox-debugsource",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4.src",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-debugsource"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important",
          "product_ids": [
            "rhel-6-els.els:firefox",
            "rhel-6-els.els:firefox.src",
            "rhel-6-els.els:thunderbird",
            "rhel-6-els.els:thunderbird.src",
            "rhel-7.9.z::client:firefox-0:91.5.0-1.el7_9",
            "rhel-7.9.z::client:firefox-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::client:firefox-debuginfo",
            "rhel-7.9.z::client:thunderbird-0:91.5.0-1.el7_9",
            "rhel-7.9.z::client:thunderbird-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::client:thunderbird-debuginfo",
            "rhel-7.9.z::server:firefox-0:91.5.0-1.el7_9",
            "rhel-7.9.z::server:firefox-debuginfo",
            "rhel-7.9.z::server:thunderbird-0:91.5.0-1.el7_9",
            "rhel-7.9.z::server:thunderbird-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::server:thunderbird-debuginfo",
            "rhel-7.9.z::workstation:firefox-0:91.5.0-1.el7_9",
            "rhel-7.9.z::workstation:firefox-0:91.5.0-1.el7_9.src",
            "rhel-7.9.z::workstation:firefox-debuginfo",
            "rhel-7.9.z::workstation:thunderbird-0:91.5.0-1.el7_9",
            "rhel-7.9.z::workstation:thunderbird-debuginfo",
            "rhel-8.1.0.z.e4s::appstream:firefox-0:91.5.0-1.el8_1",
            "rhel-8.1.0.z.e4s::appstream:firefox-0:91.5.0-1.el8_1.src",
            "rhel-8.1.0.z.e4s::appstream:firefox-debuginfo",
            "rhel-8.1.0.z.e4s::appstream:firefox-debugsource",
            "rhel-8.1.0.z.e4s::appstream:thunderbird-0:91.5.0-1.el8_1",
            "rhel-8.1.0.z.e4s::appstream:thunderbird-0:91.5.0-1.el8_1.src",
            "rhel-8.1.0.z.e4s::appstream:thunderbird-debuginfo",
            "rhel-8.1.0.z.e4s::appstream:thunderbird-debugsource",
            "rhel-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2",
            "rhel-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2.src",
            "rhel-8.2.0.z.eus::appstream:firefox-debuginfo",
            "rhel-8.2.0.z.eus::appstream:firefox-debugsource",
            "rhel-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2",
            "rhel-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2.src",
            "rhel-8.2.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-8.2.0.z.eus::appstream:thunderbird-debugsource",
            "rhel-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4",
            "rhel-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4.src",
            "rhel-8.4.0.z.eus::appstream:firefox-debuginfo",
            "rhel-8.4.0.z.eus::appstream:firefox-debugsource",
            "rhel-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4",
            "rhel-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4.src",
            "rhel-8.4.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-8.4.0.z.eus::appstream:thunderbird-debugsource",
            "rhel-8.5.0.z::appstream:firefox-0:91.5.0-1.el8_5",
            "rhel-8.5.0.z::appstream:firefox-0:91.5.0-1.el8_5.src",
            "rhel-8.5.0.z::appstream:firefox-debuginfo",
            "rhel-8.5.0.z::appstream:firefox-debugsource",
            "rhel-8.5.0.z::appstream:thunderbird-0:91.5.0-1.el8_5",
            "rhel-8.5.0.z::appstream:thunderbird-0:91.5.0-1.el8_5.src",
            "rhel-8.5.0.z::appstream:thunderbird-debuginfo",
            "rhel-8.5.0.z::appstream:thunderbird-debugsource",
            "rhel-8.6.0:firefox",
            "rhel-8.6.0:firefox.src",
            "rhel-8.6.0:thunderbird",
            "rhel-8.6.0:thunderbird.src",
            "rhel-br-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2",
            "rhel-br-8.2.0.z.eus::appstream:firefox-0:91.5.0-1.el8_2.src",
            "rhel-br-8.2.0.z.eus::appstream:firefox-debuginfo",
            "rhel-br-8.2.0.z.eus::appstream:firefox-debugsource",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_2.src",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-br-8.2.0.z.eus::appstream:thunderbird-debugsource",
            "rhel-br-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4",
            "rhel-br-8.4.0.z.eus::appstream:firefox-0:91.5.0-1.el8_4.src",
            "rhel-br-8.4.0.z.eus::appstream:firefox-debuginfo",
            "rhel-br-8.4.0.z.eus::appstream:firefox-debugsource",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-0:91.5.0-1.el8_4.src",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-debuginfo",
            "rhel-br-8.4.0.z.eus::appstream:thunderbird-debugsource"
          ]
        }
      ],
      "title": "Iframe sandbox bypass with XSLT"
    }
  ]
}