Описание
On arm64, a WASM br_table instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
On arm64, a WASM br_table instruction with a large number of entries could lead to the label being too far from the instruction, causing truncation and incorrect computation of the branch address.
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/firefox-flatpak | Affected | ||
| Red Hat Enterprise Linux 10 | rhel10/thunderbird-flatpak | Affected | ||
| Red Hat Enterprise Linux 6 | firefox | Out of support scope | ||
| 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 | firefox | Fixed | RHSA-2025:11797 | 28.07.2025 |
| Red Hat Enterprise Linux 10 | thunderbird | Fixed | RHSA-2025:12188 | 29.07.2025 |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | firefox | Fixed | RHSA-2025:12278 | 30.07.2025 |
| Red Hat Enterprise Linux 8 | firefox | Fixed | RHSA-2025:11747 | 24.07.2025 |
| Red Hat Enterprise Linux 8 | thunderbird | Fixed | RHSA-2025:13676 | 12.08.2025 |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
On arm64, a WASM `br_table` instruction with a lot of entries could le ...
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address. This vulnerability affects Firefox < 141, Firefox ESR < 115.26, Firefox ESR < 128.13, Firefox ESR < 140.1, Thunderbird < 141, Thunderbird < 128.13, and Thunderbird < 140.1.
Уязвимость браузеров Mozilla Firefox, Firefox ESR и почтового клиента Thunderbird, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации
EPSS
7.5 High
CVSS3