Here's another article with a pull quote below:
WordPress users are advised to disable the XML-RPC process completely or to block pingback requests. Server administrators are advised to update their versions of glibc as soon as possible.
PHP Applications, WordPress Vulnerable to Ghost glibc Bug | Threatpost | The first stop for security news
Researchers at Sucuri revealed that applications such as WordPress that support PHP could also be subject to the Ghost vulnerability in glibc.
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