rhsa-2021_5017
Vulnerability from csaf_redhat
Published
2021-12-08 10:02
Modified
2024-11-06 00:14
Summary
Red Hat Security Advisory: firefox security update

Notes

Topic
An update for firefox is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.4.0 ESR. Security Fix(es): * Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4 * Mozilla: URL leakage when navigating while executing asynchronous function (CVE-2021-43536) * Mozilla: Heap buffer overflow when using structured clone (CVE-2021-43537) * Mozilla: Missing fullscreen and pointer lock notification when requesting both (CVE-2021-43538) * Mozilla: GC rooting failure when calling wasm instance methods (CVE-2021-43539) * Mozilla: External protocol handler parameters were unescaped (CVE-2021-43541) * Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler (CVE-2021-43542) * Mozilla: Bypass of CSP sandbox directive when embedding (CVE-2021-43543) * Mozilla: Denial of Service when using the Location API in a loop (CVE-2021-43545) * Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed (CVE-2021-43546) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "An update for firefox is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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          "text": "The Mozilla Foundation Security Advisory describes this flaw as:\r\n\r\nMozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Thunderbird 91.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.",
          "title": "Vulnerability description"
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        {
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          "text": "Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4",
          "title": "Vulnerability summary"
        },
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          "text": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "url": "https://www.cve.org/CVERecord?id=CVE-2021-4129"
        },
        {
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-4129",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4129"
        },
        {
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          "summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2021-53/#CVE-2021-4129",
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        {
          "category": "vendor_fix",
          "date": "2021-12-08T10:02:59+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing the update, Firefox must be restarted for the changes to take effect.",
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            "attackVector": "NETWORK",
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            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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        "name": "Improper Restriction of Rendered UI Layers or Frames"
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      "title": "Mozilla: GC rooting failure when calling wasm instance methods"
    },
    {
      "cve": "CVE-2021-43541",
      "cwe": {
        "id": "CWE-428",
        "name": "Unquoted Search Path or Element"
      },
      "discovery_date": "2021-12-07T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2030111"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird \u003c 91.4.0, Firefox ESR \u003c 91.4.0, and Firefox \u003c 95.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Mozilla: External protocol handler parameters were unescaped",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "category": "external",
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          "details": "Moderate"
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      ],
      "title": "Mozilla: External protocol handler parameters were unescaped"
    },
    {
      "cve": "CVE-2021-43542",
      "cwe": {
        "id": "CWE-209",
        "name": "Generation of Error Message Containing Sensitive Information"
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      "discovery_date": "2021-12-07T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2030112"
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      ],
      "notes": [
        {
          "category": "description",
          "text": "Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird \u003c 91.4.0, Firefox ESR \u003c 91.4.0, and Firefox \u003c 95.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
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          "category": "external",
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      "title": "Mozilla: XMLHttpRequest error codes could have leaked the existence of an external protocol handler"
    },
    {
      "cve": "CVE-2021-43543",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
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      "discovery_date": "2021-12-07T00:00:00+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
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          "category": "description",
          "text": "Documents loaded with the CSP sandbox directive could have escaped the sandbox\u0027s script restriction by embedding additional content. This vulnerability affects Thunderbird \u003c 91.4.0, Firefox ESR \u003c 91.4.0, and Firefox \u003c 95.",
          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "Mozilla: Bypass of CSP sandbox directive when embedding",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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          "details": "Moderate"
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      "title": "Mozilla: Bypass of CSP sandbox directive when embedding"
    },
    {
      "cve": "CVE-2021-43545",
      "cwe": {
        "id": "CWE-835",
        "name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
      },
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      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2030114"
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          "category": "description",
          "text": "Using the Location API in a loop could have caused severe application hangs and crashes. This vulnerability affects Thunderbird \u003c 91.4.0, Firefox ESR \u003c 91.4.0, and Firefox \u003c 95.",
          "title": "Vulnerability description"
        },
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          "text": "Mozilla: Denial of Service when using the Location API in a loop",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
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            "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "Mozilla: Denial of Service when using the Location API in a loop"
    },
    {
      "cve": "CVE-2021-43546",
      "cwe": {
        "id": "CWE-1021",
        "name": "Improper Restriction of Rendered UI Layers or Frames"
      },
      "discovery_date": "2021-12-07T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2030115"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. This vulnerability affects Thunderbird \u003c 91.4.0, Firefox ESR \u003c 91.4.0, and Firefox \u003c 95.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.ppc64le",
          "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.src",
          "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.x86_64",
          "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.ppc64le",
          "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.x86_64",
          "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.ppc64le",
          "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-43546"
        },
        {
          "category": "external",
          "summary": "RHBZ#2030115",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2030115"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-43546",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-43546"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-43546",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43546"
        }
      ],
      "release_date": "2021-12-07T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-12-08T10:02:59+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing the update, Firefox must be restarted for the changes to take effect.",
          "product_ids": [
            "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.src",
            "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:5017"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.src",
            "AppStream-8.1.0.Z.E4S:firefox-0:91.4.0-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-debuginfo-0:91.4.0-1.el8_1.x86_64",
            "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.ppc64le",
            "AppStream-8.1.0.Z.E4S:firefox-debugsource-0:91.4.0-1.el8_1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "Mozilla: Cursor spoofing could overlay user interface when native cursor is zoomed"
    }
  ]
}


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