Re: [RCU] Malicious header causing RoundCube to hang (load forever)

On 07.09.2016 10:38, Luescher Claude wrote:

I have a strange header which causes Roundcube Webmail 1.2.0 to hang. Could you please investigate why and fix this in the next version? I have removed the ips and the domains from the message but it should produce the same results and I can confirm it was not the body but the header which caused the issue. I had to do bunch of traffic sniffing between the rc<>dovecot until I figured out that this is the root cause.

I'm unable to reproduce.

Disable all plugins, enable imap_debug in Roundcube. Maybe this will give you some hints. What exactly "it hangs" means? Maybe dovecot hangs, not Roundcube? Any errors in log?