Vulnerable library protobuf version 1.2

[beta-vulnerability-notify]

A vulnerability has been found in the library protobuf.

The description is:
Description Affected versions of this crate called Vec::reserve() on user-supplied input. This allows an attacker to cause an Out of Memory condition while calling the vulnerable method on untrusted data. More Info stepancheg/rust-protobuf#411 Patched Versions ^1.7.5 >= 2.6.0

Please fix this as soon as possible
Link to read more about the vulnerability:
https://watchers.firosolutions.com/vuln/view/RUSTSEC-2019-0003: protobuf: Out of Memory in stream::read_raw_bytes_into()