FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients prior to version 3.5.1 are vulnerable to out-of-bounds read. This occurs when `WCHAR` string is read with twice the size it has and converted to `UTF-8`, `base64` decoded. The string is only used to compare against the redirection server certificate. Version 3.5.1 contains a patch for the issue. No known workarounds are available.

freerdp: Integer Overflow leading to Heap Overflow in freerdp_bitmap_planar_context_reset freerdp: Integer overflow & OutOfBound Write in clear_decompress_residual_data freerdp: integer underflow in nsc_rle_decode freerdp: OutOfBound Read in zgfx_decompress_segment freerdp: OutOfBound Read in planar_skip_plane_rle freerdp: out-of-bounds read in ncrush_decompress freerdp: OutOfBound Read in interleaved_decompress FreeRDP: ExtractRunLengthRegular* out of bound read freerdp: freerdp_image_copy out of bound read freerdp: zgfx_decompress out of memory freerdp: rdp_write_logon_info_v1 NULL access freerdp: out-of-bounds read

Affected: Ubuntu:24.04:LTS: freerdp3

FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients prior to version 3.5.1 are vulnerable to out-of-bounds read. This occurs when `WCHAR` string is read with twice the size it has and converted to `UTF-8`, `base64` decoded. The string is only used to compare against the redirection server certificate. Version 3.5.1 contains a patch for the issue. No known workarounds are available.

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in FreeRDP ausnutzen, um Sicherheitsvorkehrungen zu umgehen oder einen Denial-of-Service-Zustand zu verursachen.