Issue #13553 has been updated by Matthaus Litteken.

Target version set to 2.7.13
Private changed from Yes to No


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Bug #13553: Puppet master can be cause to read data until it is out of memory
https://projects.puppetlabs.com/issues/13553#change-60333

Author: Andrew  Parker
Status: Closed
Priority: High
Assignee: Andrew  Parker
Category: security
Target version: 2.7.13
Affected Puppet version: 
Keywords: 
Branch: 


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.


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