rhsa-2025:8326
Vulnerability from csaf_redhat
Published
2025-05-29 19:32
Modified
2025-07-24 12:34
Summary
Red Hat Security Advisory: thunderbird security update

Notes

Topic
An update for thunderbird is now available for Red Hat Enterprise Linux 9.2 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. Security Fix(es): * thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909) * thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875) * thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// Links (CVE-2025-3877) * thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932) 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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  "vulnerabilities": [
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      "discovery_date": "2025-05-14T18:00:56.630759+00:00",
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          "text": "2366287"
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          "category": "description",
          "text": "The Mozilla Foundation\u0027s Security Advisory describes the following issue: Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. For example, if the From header contains an (invalid) value \"Spoofed Name spoofed@example.com legitimate@example.com\", Thunderbird treats spoofed@example.com as the actual address.",
          "title": "Vulnerability description"
        },
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          "text": "thunderbird: Sender Spoofing via Malformed From Header in Thunderbird",
          "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.",
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link"
    },
    {
      "cve": "CVE-2025-3932",
      "cwe": {
        "id": "CWE-288",
        "name": "Authentication Bypass Using an Alternate Path or Channel"
      },
      "discovery_date": "2025-05-14T18:01:24.278469+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2366297"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The Mozilla Foundation\u0027s Security Advisory describes the following issue: It is possible to craft an email that shows a tracking link as an attachment. If the user attempts to open the attachment, Thunderbird automatically accesses the link. The configuration to block remote content does not prevent that. Thunderbird has been fixed to no longer allow access to web pages listed in the X-Mozilla-External-Attachment-URL header of an email.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "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"
        }
      ],
      "product_status": {
        "fixed": [
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          "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.aarch64",
          "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.ppc64le",
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          "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2025-3932"
        },
        {
          "category": "external",
          "summary": "RHBZ#2366297",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2366297"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-3932",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-3932"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-3932",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3932"
        },
        {
          "category": "external",
          "summary": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-34/#CVE-2025-3932",
          "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2025-34/#CVE-2025-3932"
        }
      ],
      "release_date": "2025-05-14T16:56:43.939000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-05-29T19:32:51+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",
          "product_ids": [
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.aarch64",
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.ppc64le",
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.s390x",
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.src",
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.x86_64",
            "AppStream-9.2.0.Z.EUS:thunderbird-debuginfo-0:128.10.1-1.el9_2.aarch64",
            "AppStream-9.2.0.Z.EUS:thunderbird-debuginfo-0:128.10.1-1.el9_2.ppc64le",
            "AppStream-9.2.0.Z.EUS:thunderbird-debuginfo-0:128.10.1-1.el9_2.s390x",
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            "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.aarch64",
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            "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.s390x",
            "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2025:8326"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.aarch64",
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.ppc64le",
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            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.src",
            "AppStream-9.2.0.Z.EUS:thunderbird-0:128.10.1-1.el9_2.x86_64",
            "AppStream-9.2.0.Z.EUS:thunderbird-debuginfo-0:128.10.1-1.el9_2.aarch64",
            "AppStream-9.2.0.Z.EUS:thunderbird-debuginfo-0:128.10.1-1.el9_2.ppc64le",
            "AppStream-9.2.0.Z.EUS:thunderbird-debuginfo-0:128.10.1-1.el9_2.s390x",
            "AppStream-9.2.0.Z.EUS:thunderbird-debuginfo-0:128.10.1-1.el9_2.x86_64",
            "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.aarch64",
            "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.ppc64le",
            "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.s390x",
            "AppStream-9.2.0.Z.EUS:thunderbird-debugsource-0:128.10.1-1.el9_2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking"
    }
  ]
}


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