Описание
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts cbData/remaining length and never validates against the minimum size implied by cx/cy. A malicious server can trigger a client‑side global buffer overflow, causing a crash (DoS). Version 3.21.0 contains a patch for the issue.
A flaw was found in FreeRDP. A malicious server can exploit a vulnerability in FastGlyph parsing, which improperly trusts data length without sufficient validation. This can lead to a client-side global buffer overflow, resulting in a denial of service (DoS) due to a crash. For this vulnerability to be exploited, a client must connect to a maliciously-configured server.
Отчет
For this vulnerability to be exploited, a client must connect to a maliciously-configured server. Red Hat recommends that FreeRDP clients are only used to connect to trusted servers.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | freerdp | Affected | ||
| Red Hat Enterprise Linux 10 | freerdp | Fixed | RHSA-2026:6799 | 07.04.2026 |
| Red Hat Enterprise Linux 10 | freerdp | Fixed | RHSA-2026:19033 | 19.05.2026 |
| Red Hat Enterprise Linux 10.0 Extended Update Support | freerdp | Fixed | RHSA-2026:6743 | 07.04.2026 |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | freerdp | Fixed | RHSA-2026:11323 | 28.04.2026 |
| Red Hat Enterprise Linux 8 | freerdp | Fixed | RHSA-2026:6918 | 07.04.2026 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | freerdp | Fixed | RHSA-2026:10734 | 27.04.2026 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | freerdp | Fixed | RHSA-2026:10735 | 27.04.2026 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | freerdp | Fixed | RHSA-2026:10735 | 27.04.2026 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | freerdp | Fixed | RHSA-2026:10951 | 27.04.2026 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts `cbData`/remaining length and never validates against the minimum size implied by `cx/cy`. A malicious server can trigger a client‑side global buffer overflow, causing a crash (DoS). Version 3.21.0 contains a patch for the issue.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts `cbData`/remaining length and never validates against the minimum size implied by `cx/cy`. A malicious server can trigger a client‑side global buffer overflow, causing a crash (DoS). Version 3.21.0 contains a patch for the issue.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior ...
Уязвимость функции Glyph_Alloc() RDP-клиента FreeRDP, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
6.5 Medium
CVSS3