Web-tech nerd stuff

Heartbleed fix for Debian including on AWS (Debian AMI)

As many others have in the past couple of days, I've spent a fair bit of time reading about, fixing and reassuring customers about the heartbleed bug in openSSL and GNUTLS. The openSSL, GNUTLS and Debian package maintainers acted quickly to fix the issue and most people will simply be able to run:

apt-get update
apt-get upgrade

(remember to do this via sudo or as root)

On standard Debian wheezy installs, this will install a patched version of openSSL 1.0.1e so despite appearances, you should then be free of heartbleed. You can test this via a variety of ways but one of the simplest is published by security consultant Filippo Valsorda here (inlcuding source code so you can satisfy yourself that it's friendly).

When I came to update my Debian installs on AWS which I began building a week or two ago via the official Debian AMI (ver. 7.4), I found that there were no security apt sources in /etc/apt/sources.list and thus running apt update/upgrade didn't install the patched openSSL version. All I had was:

deb wheezy main
deb-src wheezy main
deb wheezy-updates main
deb-src wheezy-updates main

So, I had to add them in:

deb wheezy/updates main contrib non-free
deb-src wheezy/updates main contrib non-free

After that, the usual:

apt-get update
apt-get upgrade

Installed the patched openSSL version and thus heartbleed is no more, happy days. All simple stuff but might perhaps help someone out who's not so familiar with these things.

Created: Wed, 09 Apr 2014 10:00:00 GMT
Last modified: Wed, 09 Apr 2014 10:00:00 GMT