漏洞信息
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Vulnerability Title
FreeRDP before 3.31.0 Information Disclosure via uninitialized heap memory
Vulnerability Description
FreeRDP versions 3.0.0 through 3.30.0 (before 3.31.0) transmit uninitialized heap memory in Save Session Info PDU reserved padding fields. Three PDU writers in libfreerdp/core/info.c (rdp_write_logon_info_v2, rdp_write_logon_info_plain, and rdp_write_logon_info_ex) use Stream_Seek instead of Stream_Zero for reserved pad bytes (up to 576 bytes), leaving previously freed heap contents in the outgoing PDU. Because the send buffer is allocated with malloc (not zeroed), stale heap data — which may include cleartext credentials from prior sessions — can be sent to the receiving peer. FreeRDP-based servers using rdpUpdate::SaveSessionInfo and freerdp-proxy (which forwards these PDUs) are affected, allowing disclosure of server/proxy process memory to a downstream client.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Vulnerability Type
对未经初始化资源的使用
Vulnerability Title
FreeRDP 资源管理错误漏洞
Vulnerability Description
FreeRDP是FreeRDP团队开源的一款远程桌面协议(RDP)的实现。 FreeRDP 3.0.0至3.31.0之前版本存在资源管理错误漏洞,该漏洞源于Save Session Info PDU保留填充字段中使用Stream_Seek而非Stream_Zero,导致未初始化的堆内存被传输,可能泄露先前会话的明文凭据及服务器或代理进程内存。
CVSS Information
N/A
Vulnerability Type
N/A