Eu construí uma versão atualizada do curl
#! /usr/bin/env bash
# Install any build dependencies needed for curl
sudo apt-get build-dep curl
# Downloaded and build lastest available version at 02/08/2017
mkdir ~/curl
cd ~/curl
wget --no-check-certificate http://curl.haxx.se/download/curl-7.52.1.tar.bz2
tar -xvjf curl-7.52.1.tar.bz2
cd curl-7.52.1
# The usual steps for building an app from source
./configure
make
sudo make install
# Resolve any issues of C-level lib
# location caches ("shared library cache")
sudo ldconfig
Depois disso, baixei com sucesso e adicionei a chave do nó