A long-standing vulnerability unearthed in the GNU Bash software, nicknamed Shellshock, has disrupted the daily activities of the Linux system administrator community, as Linux distributors, cloud vendors and end users grapple to understand the full scope of the potential damage it could cause.

“It’s a very subtle and complicated vulnerability,” said Owen Garrett, head of products for Nginx, a provider of server software.

The vulnerability “is trivially easy to exploit if you know what you are doing, so it really is a potentially serious problem,” Garret said. “The upside is that the remedy is quick and easy.”

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