*** This bug is a security vulnerability ***

Public security bug reported:

Many VPN providers will give a Certificate Revocation List crl.pem file in 
their OpenVPN packages. The CRL list is becoming increasingly important after 
the Heartbleed bug was exposed, leaving many servers vulnerable to attack by 
unauthorized certificates. Is there any way to manually pass the option 
'crl-verify crl.pem' to openvpn by editing a file somewhere? 
I'm having a difficult time understanding how the network-manager-openvpn 
client actually works, and what arguments it can actually receive, given that 
it doesn't 'truly' import .ovpn configuration files. I also have little clue 
where the configurations are written in the file system as there are no manual 
pages and no debugging/terminal output for the network-manager-openvpn client. 
I can't even find the godforsaken binaries after installing the package. It 
would be much better if one could literally just pass it a .ovpn file, but 
seeing as that's not possible, I must request that the crl-verify option is 
added in the near future so that my system is not vulnerable to attacks using 
unauthorized certificates.

** Affects: network-manager-openvpn (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: crl openvpn

** Information type changed from Private Security to Public Security

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https://bugs.launchpad.net/bugs/1618286

Title:
  Critical security flaw: Missing crl-verify openvpn option

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