Bug 2359786 (CVE-2025-3523)

Summary: CVE-2025-3523 thunderbird: User Interface (UI) Misrepresentation of attachment URL
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: erack, gotiwari, jhorak, mvyas, tpopela
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from untrusted sources.
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Last Closed: Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2025-04-15 16:01:15 UTC
When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from untrusted sources. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2.

Comment 1 errata-xmlrpc 2025-04-28 01:22:46 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:4229 https://access.redhat.com/errata/RHSA-2025:4229

Comment 2 errata-xmlrpc 2025-04-30 10:30:56 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:4389 https://access.redhat.com/errata/RHSA-2025:4389

Comment 3 errata-xmlrpc 2025-05-06 07:41:53 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2025:4513 https://access.redhat.com/errata/RHSA-2025:4513

Comment 4 errata-xmlrpc 2025-05-06 07:47:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:4512 https://access.redhat.com/errata/RHSA-2025:4512

Comment 5 errata-xmlrpc 2025-05-06 07:55:50 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:4514 https://access.redhat.com/errata/RHSA-2025:4514

Comment 6 errata-xmlrpc 2025-05-07 05:53:21 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2025:4617 https://access.redhat.com/errata/RHSA-2025:4617

Comment 7 errata-xmlrpc 2025-05-07 08:26:44 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:4649 https://access.redhat.com/errata/RHSA-2025:4649

Comment 8 errata-xmlrpc 2025-05-07 09:06:39 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Via RHSA-2025:4654 https://access.redhat.com/errata/RHSA-2025:4654

Comment 9 errata-xmlrpc 2025-05-07 12:55:44 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:4665 https://access.redhat.com/errata/RHSA-2025:4665

Comment 10 errata-xmlrpc 2025-05-13 11:57:31 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:7435 https://access.redhat.com/errata/RHSA-2025:7435

Comment 11 errata-xmlrpc 2025-05-13 16:01:17 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:7507 https://access.redhat.com/errata/RHSA-2025:7507