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Bug #13553

Updated by Matthaus Owens over 3 years ago

Using the symlink attack described in Bug #13511 the puppet master can be caused to read from a stream (e.g. /dev/random) when either trying to save a file or read a file. Because of the way in which the puppet master deals with sending files on the filesystem to a remote system via a REST request the thread handling the request will block forever reading from that stream and continually consuming more memory. This can lead to the puppet master system running out of memory and cause a denial of service. Zero day goes here