Описание
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xf_AppUpdateWindowFromSurface reads from a freed xfAppWindow because the RDPGFX DVC thread obtains a bare pointer via xf_rail_get_window without any lifetime protection, while the main thread can concurrently delete the window through a fastpath window-delete order. Version 3.23.0 fixes the issue.
A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. This use-after-free vulnerability occurs in the xf_AppUpdateWindowFromSurface function where a bare pointer to a window is obtained without proper lifetime protection. A remote attacker could exploit this by concurrently deleting the window while it is being accessed, leading to a read from freed memory. This could result in a denial of service (DoS) for the affected system.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | freerdp | Fix deferred | ||
| Red Hat Enterprise Linux 6 | freerdp | Fix deferred | ||
| Red Hat Enterprise Linux 7 | freerdp | Fix deferred | ||
| Red Hat Enterprise Linux 8 | freerdp | Fix deferred | ||
| Red Hat Enterprise Linux 9 | freerdp | Fix deferred |
Показывать по
Ссылки на источники
Дополнительная информация
Статус:
EPSS
4.3 Medium
CVSS3
Связанные уязвимости
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reads from a freed `xfAppWindow` because the RDPGFX DVC thread obtains a bare pointer via `xf_rail_get_window` without any lifetime protection, while the main thread can concurrently delete the window through a fastpath window-delete order. Version 3.23.0 fixes the issue.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reads from a freed `xfAppWindow` because the RDPGFX DVC thread obtains a bare pointer via `xf_rail_get_window` without any lifetime protection, while the main thread can concurrently delete the window through a fastpath window-delete order. Version 3.23.0 fixes the issue.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior ...
Уязвимость функции xf_AppUpdateWindowFromSurface() RDP-клиента FreeRDP, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации
EPSS
4.3 Medium
CVSS3