Bug 2366297 (CVE-2025-3932) - CVE-2025-3932 thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking
Summary: CVE-2025-3932 thunderbird: Tracking Links in Attachments Bypassed Remote Cont...
Keywords:
Status: NEW
Alias: CVE-2025-3932
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-05-14 18:02 UTC by OSIDB Bzimport
Modified: 2025-05-27 12:22 UTC (History)
5 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:8196 0 None None None 2025-05-27 10:01:11 UTC
Red Hat Product Errata RHSA-2025:8203 0 None None None 2025-05-27 12:22:39 UTC

Description OSIDB Bzimport 2025-05-14 18:02:02 UTC 
It was possible to craft an email that showed a tracking link as an attachment. If the user attempted to open the attachment, Thunderbird automatically accessed the link. The configuration to block remote content did 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. This vulnerability affects Thunderbird < 128.10.1 and Thunderbird < 138.0.1.
Comment 1 errata-xmlrpc 2025-05-27 10:01:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:8196 https://access.redhat.com/errata/RHSA-2025:8196
Comment 2 errata-xmlrpc 2025-05-27 12:22:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:8203 https://access.redhat.com/errata/RHSA-2025:8203
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