The following advisory data is extracted from:

https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_4460.json

Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff




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Red Hat Security Advisory

Synopsis:           Important: thunderbird security update
Advisory ID:        RHSA-2025:4460-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2025:4460
Issue date:         2025-05-05
Revision:           03
CVE Names:          CVE-2025-2817
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Summary: 

An update for thunderbird is now available for Red Hat Enterprise Linux 9.

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.




Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

* firefox: thunderbird: Privilege escalation in Firefox Updater (CVE-2025-2817)

* firefox: thunderbird: Unsafe attribute access during XPath parsing (CVE-2025-4087)

* firefox: thunderbird: Process isolation bypass using \"javascript:\" URI links in cross-origin frames (CVE-2025-4083)

* firefox: thunderbird: Memory safety bugs fixed in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10 (CVE-2025-4091)

* firefox: thunderbird: Memory safety bug fixed in Firefox ESR 128.10 and Thunderbird 128.10 (CVE-2025-4093)

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.


Solution:

https://access.redhat.com/articles/11258



CVEs:

CVE-2025-2817

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2362902
https://bugzilla.redhat.com/show_bug.cgi?id=2362904
https://bugzilla.redhat.com/show_bug.cgi?id=2362907
https://bugzilla.redhat.com/show_bug.cgi?id=2362912
https://bugzilla.redhat.com/show_bug.cgi?id=2362915