Уязвимость типа "использование после освобождения" (use-after-free) в браузерах Firefox и Thunderbird при обработке объектов "FontFace"
Описание
Уязвимость типа use-after-free может возникнуть, когда события срабатывают для объекта 'FontFace' после того, как объект уже был уничтожен при работе со шрифтами. Это может привести к потенциально эксплуатируемому аварийному завершению работы (crash).
Затронутые версии ПО
- Firefox ниже версии 52
- Firefox ESR ниже версии 45.8
- Thunderbird ниже версии 52
- Thunderbird ниже версии 45.8
Тип уязвимости
- Уязвимость типа "использование после освобождения" (use-after-free)
- Аварийное завершение работы
Ссылки
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party AdvisoryVDB Entry
- Third Party AdvisoryVDB Entry
- Issue TrackingPatchVendor Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- Vendor Advisory
- Vendor Advisory
- Vendor Advisory
- Vendor Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party AdvisoryVDB Entry
- Third Party AdvisoryVDB Entry
- Issue TrackingPatchVendor Advisory
Уязвимые конфигурации
Одно из
EPSS
9.8 Critical
CVSS3
7.5 High
CVSS2
Дефекты
Связанные уязвимости
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
A use-after-free can occur when events are fired for a "FontFace" obje ...
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
EPSS
9.8 Critical
CVSS3
7.5 High
CVSS2