libuv: out-of-bounds read in uv__idna_toascii() can lead to information disclosures or crashes

A flaw has been found in libuv. Node.js is vulnerable to out-of-bounds read in libuv's uvidnatoascii function which is used to convert strings to ASCII which is called by Node's DNS module's lookup function and can lead to information disclosures or crashes. The highest threat from this...