This update for gvfs fixes the following issues:
read_string() allocates buffers withouth verifying that the buffer is completely filled when
communicating with a malicious SFTP server, which can lead to uninitialized heap memory leaks (bsc#1278157).read_reply() processes length that exceeds requested client size when communicating with a malicious
SFTP server, which can lead to an OOB write (bsc#1278158).do_read() trusts the data length returned by a mounted MTP device and does not limit it to the
original size requested by the client, which can lead to an OOB write (bsc#1278156).