CyberRota Analysis
AI-GeneratedFreeRDP versions prior to 3.28.0 are vulnerable to a flaw in the handling of malformed Client Audio Formats PDUs, which can lead to a double-free condition and potential heap corruption. An authenticated RDP client can exploit this vulnerability to crash the server, impacting availability and stability. Organizations using FreeRDP should prioritize upgrading to version 3.28.0 or later to mitigate this high-severity risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, rdpsnd_server_recv_formats in channels/rdpsnd/server/rdpsnd_main.c frees context->client_formats on a malformed Client Audio Formats PDU without clearing the owning pointer or num_client_formats. An authenticated RDP client can trigger an error such as a cbSize larger than the remaining record, leave the dangling pointer in the server context, and cause rdpsnd_server_context_free to free the same allocation again at session teardown. This reliably terminates the server and can create allocator-dependent heap corruption. This issue is fixed in version 3.28.0.