The Rust Programming Language Standard Library version 1.29.0 1.28.0 1.27.2 1.27.1 127.0 126.2 126.1 126.0 contains a CWE-680: Integer Overflow to Buffer Overflow vulnerability in standard library that can result in buffer overflow. This attack appear to be exploitable via str::repeat passed a large number can overflow an internal buffer. This vulnerability appears to have been fixed in 1.29.1.