Описание
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. This vulnerability was fixed in Thunderbird 153 and Thunderbird 140.13.
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.
Отчет
Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | rhel10/thunderbird-flatpak | Affected | ||
| Red Hat Enterprise Linux 6 | thunderbird | Out of support scope | ||
| Red Hat Enterprise Linux 7 | thunderbird | Out of support scope | ||
| Red Hat Enterprise Linux 10 | thunderbird | Fixed | RHSA-2026:49621 | 03.08.2026 |
| Red Hat Enterprise Linux 10.0 Extended Update Support | thunderbird | Fixed | RHSA-2026:53445 | 11.08.2026 |
| Red Hat Enterprise Linux 8 | thunderbird | Fixed | RHSA-2026:49922 | 04.08.2026 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | thunderbird | Fixed | RHSA-2026:53455 | 11.08.2026 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | thunderbird | Fixed | RHSA-2026:53455 | 11.08.2026 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | thunderbird | Fixed | RHSA-2026:53453 | 11.08.2026 |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | thunderbird | Fixed | RHSA-2026:53453 | 11.08.2026 |
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Дополнительная информация
Статус:
6.1 Medium
CVSS3
Связанные уязвимости
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. This vulnerability was fixed in Thunderbird 153 and Thunderbird 140.13.
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. This vulnerability was fixed in Thunderbird 153 and Thunderbird 140.13.
The code to parse MIME headers for display when forwarding a message ( ...
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. This vulnerability was fixed in Thunderbird 153 and Thunderbird 140.13.
6.1 Medium
CVSS3