rhsa-2021_4133
Vulnerability from csaf_redhat
Published
2021-11-04 16:47
Modified
2024-11-22 17:49
Summary
Red Hat Security Advisory: thunderbird security update

Notes

Topic
An update for thunderbird is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. 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 Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 91.3.0. Security Fix(es): * Mozilla: Use-after-free in HTTP2 Session object * Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3 * Mozilla: iframe sandbox rules did not apply to XSLT stylesheets (CVE-2021-38503) * Mozilla: Use-after-free in file picker dialog (CVE-2021-38504) * Mozilla: Firefox could be coaxed into going into fullscreen mode without notification or warning (CVE-2021-38506) * Mozilla: Opportunistic Encryption in HTTP2 could be used to bypass the Same-Origin-Policy on services hosted on other ports (CVE-2021-38507) * Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing (CVE-2021-38508) * Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain (CVE-2021-38509) 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.


To clipboard 

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          "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\nAll running instances of Thunderbird must be restarted for the update to take effect.",
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            "scope": "CHANGED",
            "userInteraction": "NONE",
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          "title": "Vulnerability description"
        },
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          "title": "Vulnerability summary"
        },
        {
          "category": "general",
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          "title": "CVSS score applicability"
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        },
        {
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          "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.",
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      "title": "Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing"
    },
    {
      "cve": "CVE-2021-38509",
      "cwe": {
        "id": "CWE-1021",
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        {
          "category": "description",
          "text": "Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker\u0027s choosing. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain",
          "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": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-38509"
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          "category": "external",
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          "category": "external",
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          "url": "https://www.cve.org/CVERecord?id=CVE-2021-38509"
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        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-38509",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38509"
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      "release_date": "2021-11-02T00:00:00+00:00",
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          "category": "vendor_fix",
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          "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\nAll running instances of Thunderbird must be restarted for the update to take effect.",
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          "cvss_v3": {
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            "userInteraction": "REQUIRED",
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      "title": "Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain"
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    {
      "cve": "CVE-2021-43529",
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        "id": "CWE-120",
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        {
          "category": "description",
          "text": "A flaw was found in Thunderbird, which is vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "thunderbird: Memory corruption when processing S/MIME messages",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Thunderbird is affected when parsing email with the S/MIME signature. Thunderbird on Red Hat Enterprise Linux 8.4 and later does not need to be updated since it uses the system NSS library, but earlier Red Hat Enterprise Linux 8 extended lifestreams will need to update Thunderbird as well as NSS.",
          "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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          "category": "external",
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          "category": "external",
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          "category": "external",
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          "category": "external",
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      "title": "thunderbird: Memory corruption when processing S/MIME messages"
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          "title": "Vulnerability description"
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          "text": "Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3",
          "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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        "id": "CWE-416",
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          "system_name": "Red Hat Bugzilla ID",
          "text": "2019626"
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          "category": "description",
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
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        },
        {
          "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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        }
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            "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"
          },
          "products": [
            "AppStream-8.1.0.Z.EUS:thunderbird-0:91.3.0-2.el8_1.ppc64le",
            "AppStream-8.1.0.Z.EUS:thunderbird-0:91.3.0-2.el8_1.src",
            "AppStream-8.1.0.Z.EUS:thunderbird-0:91.3.0-2.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:thunderbird-debuginfo-0:91.3.0-2.el8_1.ppc64le",
            "AppStream-8.1.0.Z.EUS:thunderbird-debuginfo-0:91.3.0-2.el8_1.x86_64",
            "AppStream-8.1.0.Z.EUS:thunderbird-debugsource-0:91.3.0-2.el8_1.ppc64le",
            "AppStream-8.1.0.Z.EUS:thunderbird-debugsource-0:91.3.0-2.el8_1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Mozilla: Use-after-free in HTTP2 Session object"
    }
  ]
}


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