Описание
A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Out of support scope | ||
| Red Hat Enterprise Linux 6 | thunderbird | Fixed | RHSA-2020:5238 | 30.11.2020 |
| Red Hat Enterprise Linux 6 | firefox | Fixed | RHSA-2020:5257 | 30.11.2020 |
| Red Hat Enterprise Linux 7 | thunderbird | Fixed | RHSA-2020:5235 | 30.11.2020 |
| Red Hat Enterprise Linux 7 | firefox | Fixed | RHSA-2020:5239 | 30.11.2020 |
| Red Hat Enterprise Linux 8 | thunderbird | Fixed | RHSA-2020:5236 | 30.11.2020 |
| Red Hat Enterprise Linux 8 | firefox | Fixed | RHSA-2020:5237 | 30.11.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | thunderbird | Fixed | RHSA-2020:5240 | 30.11.2020 |
| Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions | firefox | Fixed | RHSA-2020:5314 | 01.12.2020 |
| Red Hat Enterprise Linux 8.1 Extended Update Support | thunderbird | Fixed | RHSA-2020:5231 | 30.11.2020 |
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Дополнительная информация
Статус:
6.1 Medium
CVSS3
Связанные уязвимости
A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
A parsing and event loading mismatch in Firefox's SVG code could have ...
A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
Уязвимость синтаксического анализа и загрузки событий в коде SVG веб-браузера Firefox и почтового клиента Thunderbird, позволяющая нарушителю проводить межсайтовые сценарные атаки (XSS)
6.1 Medium
CVSS3