Skyscrapers blog by tag: security

AWS and Linode XEN updates

Published on March 2, 2015 by Frederik Denkens

A couple of days ago, the world learned about a new security issue in the virtualisation software XEN. This component powers many clouds. The exact details of the issue are under embargo until March 10, after which they will be made public.  We manage hosting-platforms for our customers on various providers, including Amazon Web Services […]

GLIBC ‘Ghost’ vulnerability

Published on January 28, 2015 by Filip Van Tittelboom

Yesterday evening, there was a lot of talk on the ol’ interwebz about the latest ‘Internet Killer’ bug dubbed ‘Ghost’. It’s a GLIBC vulnerability (CVE-2015-0235) affecting almost every Linux distribution. A remote attacker able to call the affected functions could exploit the flaw to execute arbitrary code with the permissions of the user running the […]

SHA-2 HTTPS certificates

Published on October 30, 2014 by Filip Van Tittelboom

Last month Google, Firefox and Microsoft announced they will be retiring support of SHA-1, the cryptographic hash algorithm used in HTTPS SSL certificates. They calculated that it became too affordable to decrypt SHA-1 certificates and are upping the security of their applications. Future browser versions (next year) will show an error or warning message if […]

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