Описание
FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKID_CORE_DEVICE_IOCOMPLETION responses to trigger reads past stack or heap objects, causing process termination.
A flaw was found in FreeRDP. Authenticated RDP clients can exploit an out-of-bounds read vulnerability in smartcard response decoders. This occurs because the decoders fail to validate the length of Answer to Reset (ATR) fields against fixed inline arrays. By sending oversized ATR lengths, an attacker can trigger reads past memory objects, leading to process termination and a denial of service.
Меры по смягчению последствий
To mitigate this issue, disable smartcard redirection when connecting to RDP servers using FreeRDP. This can typically be achieved by using the --disable-smartcard command-line option for xfreerdp or similar configuration in other FreeRDP-based clients. Disabling smartcard redirection may impact functionality that relies on smartcard authentication or access within the RDP session.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | freerdp | Affected | ||
| Red Hat Enterprise Linux 6 | freerdp | Not affected | ||
| Red Hat Enterprise Linux 7 | freerdp | Not affected | ||
| Red Hat Enterprise Linux 8 | freerdp | Not affected | ||
| Red Hat Enterprise Linux 9 | freerdp | Not affected |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
[GHSA-q65v-4w7q-hx3r: Smartcard response lengths are not bounded to their inline ATR arrays]
FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKID_CORE_DEVICE_IOCOMPLETION responses to trigger reads past stack or heap objects, causing process termination.
FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerabi ...
FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKID_CORE_DEVICE_IOCOMPLETION responses to trigger reads past stack or heap objects, causing process termination.
EPSS
6.5 Medium
CVSS3