Bug 2506217 (CVE-2026-14899)
| Summary: | CVE-2026-14899 thunderbird: Off-by-one out of bounds read in MIME header parser for forwarding | ||
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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: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | gotiwari, jhorak, mvyas, rhel-process-autobot, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
The code to parse MIME headers for display when forwarding a message (if the setting to view all headers was enabled) had an off-by-one error, allowing a single byte to be read from the memory after the buffer for the headers, and potentially crashing Thunderbird.
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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
2026-07-22 20:01:45 UTC
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:49621 https://access.redhat.com/errata/RHSA-2026:49621 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2026:49922 https://access.redhat.com/errata/RHSA-2026:49922 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:49921 https://access.redhat.com/errata/RHSA-2026:49921 This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2026:53445 https://access.redhat.com/errata/RHSA-2026:53445 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Via RHSA-2026:53444 https://access.redhat.com/errata/RHSA-2026:53444 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:53446 https://access.redhat.com/errata/RHSA-2026:53446 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 Extended Update Support Long-Life Add-On Via RHSA-2026:53455 https://access.redhat.com/errata/RHSA-2026:53455 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 Extended Update Support Long-Life Add-On Via RHSA-2026:53453 https://access.redhat.com/errata/RHSA-2026:53453 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-2026:53454 https://access.redhat.com/errata/RHSA-2026:53454 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:53475 https://access.redhat.com/errata/RHSA-2026:53475 |