Fix #4725: Need to copy data.

diff --git a/libfreerdp/core/update.c b/libfreerdp/core/update.c
index e6eb5a3..7f3a391 100644 (file)
--- a/libfreerdp/core/update.c
+++ b/libfreerdp/core/update.c
@@ -127,8 +127,14 @@ static BOOL update_read_bitmap_data(rdpUpdate* update, wStream* s,
        if (Stream_GetRemainingLength(s) < bitmapData->bitmapLength)
                return FALSE;
 
-       Stream_GetPointer(s, bitmapData->bitmapDataStream);
-       Stream_Seek(s, bitmapData->bitmapLength);
+       if (bitmapData->bitmapLength > 0)
+       {
+               bitmapData->bitmapDataStream = malloc(bitmapData->bitmapLength);
+               if (!bitmapData->bitmapDataStream)
+                       return FALSE;
+               memcpy(bitmapData->bitmapDataStream, Stream_Pointer(s), bitmapData->bitmapLength);
+               Stream_Seek(s, bitmapData->bitmapLength);
+       }
        return TRUE;
 }