漏洞信息
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Vulnerability Title
FreeRDP: Heap-buffer-overflow write in TS Gateway RPC fragment receive due to uncapped bind_ack max_xmit_frag
Vulnerability Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP clients using TS Gateway accept a server-controlled max_xmit_frag value in libfreerdp/core/gateway/rpc_bind.c without bounding it to the 4088-byte ReceiveFragment allocation. A malicious gateway can advertise 65535 and then send a response fragment of the same length, causing rpc_channel_read in libfreerdp/core/gateway/rpc.c to write up to 65535 bytes into the smaller ReceiveFragment buffer. This can crash the client and may permit code execution through attacker-controlled 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FreeRDP客户端使用TS Gateway时接受服务器控制的max_xmit_frag值,未限制其不超过4088字节的ReceiveFragment分配,恶意网关可发送超长响应片段导致堆破坏,可能导致客户端崩溃或代码执行。
CVSS Information
N/A
Vulnerability Type
N/A