Bug 2374562 (CVE-2025-6425)

Summary: CVE-2025-6425 firefox: thunderbird: The WebCompat WebExtension shipped with Firefox exposed a persistent UUID
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: gotiwari, jhorak, mvyas, tpopela
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser and persisted between containers and normal/private browsing mode but not profiles.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-06-24 13:01:37 UTC
An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, and Firefox ESR < 128.12.

Comment 1 errata-xmlrpc 2025-07-01 12:02:44 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:10074 https://access.redhat.com/errata/RHSA-2025:10074

Comment 2 errata-xmlrpc 2025-07-01 21:22:19 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:10073 https://access.redhat.com/errata/RHSA-2025:10073

Comment 3 errata-xmlrpc 2025-07-01 22:06:44 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:10072 https://access.redhat.com/errata/RHSA-2025:10072

Comment 4 errata-xmlrpc 2025-07-02 05:10:53 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:10182 https://access.redhat.com/errata/RHSA-2025:10182

Comment 5 errata-xmlrpc 2025-07-02 05:16:59 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:10181 https://access.redhat.com/errata/RHSA-2025:10181

Comment 6 errata-xmlrpc 2025-07-02 05:25:20 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Via RHSA-2025:10184 https://access.redhat.com/errata/RHSA-2025:10184

Comment 7 errata-xmlrpc 2025-07-02 05:27:42 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-2025:10183 https://access.redhat.com/errata/RHSA-2025:10183

Comment 8 errata-xmlrpc 2025-07-02 05:28:10 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:10187 https://access.redhat.com/errata/RHSA-2025:10187

Comment 9 errata-xmlrpc 2025-07-02 05:38:08 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:10185 https://access.redhat.com/errata/RHSA-2025:10185

Comment 10 errata-xmlrpc 2025-07-02 05:42:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2025:10186 https://access.redhat.com/errata/RHSA-2025:10186

Comment 11 errata-xmlrpc 2025-07-02 06:08:55 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:10188 https://access.redhat.com/errata/RHSA-2025:10188