> When retrieving files via HTTP or related protocols, shim attempts to allocate a buffer to store the received data. Unfortunately, this means getting the siz

> When retrieving files via HTTP or related protocols, shim attempts to allocate a buffer to store the received data. Unfortunately, this means getting the size from an HTTP header, which can be manipulated to specify a size that's smaller than the received data. In this case, the code accidentally uses the header for the allocation but the protocol metadata to copy it from the rx buffer, resulting in an out-of-bounds write.