Bug 2366291 (CVE-2025-3877)
| Summary: | CVE-2025-3877 thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// Links | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | unspecified | CC: | erack, gotiwari, jhorak, mvyas, tpopela |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
The Mozilla Foundation's Security Advisory describes the following issue: A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data, such as using /dev/urandom on Linux, or to leak Windows credentials via SMB links when the email is viewed in HTML mode. While user interaction is required to download the .pdf file, visual obfuscation can conceal the download trigger. Viewing the email in HTML mode is enough to load external content.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
OSIDB Bzimport
2025-05-14 18:01:53 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 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 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2025:8326 https://access.redhat.com/errata/RHSA-2025:8326 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:8324 https://access.redhat.com/errata/RHSA-2025:8324 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:8325 https://access.redhat.com/errata/RHSA-2025:8325 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:8391 https://access.redhat.com/errata/RHSA-2025:8391 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Via RHSA-2025:8507 https://access.redhat.com/errata/RHSA-2025:8507 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-2025:8594 https://access.redhat.com/errata/RHSA-2025:8594 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:8756 https://access.redhat.com/errata/RHSA-2025:8756 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-2025:8784 https://access.redhat.com/errata/RHSA-2025:8784 |