漏洞信息
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Vulnerability Title
FreeRDPHeap-buffer-overflow write in TS Gateway RPC RESPONSE reassembly due to alloc_hint capacity mismatch
Vulnerability Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, rpc_client_recv_fragment in libfreerdp/core/gateway/rpc_client.c ensures the response reassembly stream capacity using only the server-declared alloc_hint rather than the actual StubLength about to be written. A malicious TS Gateway can send a PTYPE_RESPONSE with a small alloc_hint and a much larger frag_length, causing Stream_Write to copy attacker-controlled stub data beyond the 4096-byte pdu->s buffer. This can crash the client and may permit code execution through heap corruption. This issue is fixed in version 3.27.0.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
堆缓冲区溢出
Vulnerability Title
FreeRDP 缓冲区错误漏洞
Vulnerability Description
FreeRDP是FreeRDP组织开源的一款远程桌面协议(RDP)的实现。 FreeRDP 3.27.0之前版本存在缓冲区错误漏洞,该漏洞源于rpc_client_recv_fragment函数仅使用服务器声明的alloc_hint而非实际StubLength来确保响应重组流容量,可能导致堆缓冲区溢出,造成客户端崩溃及任意代码执行。
CVSS Information
N/A
Vulnerability Type
N/A