[rabbitmq-discuss] RabbitMQ 3.0, SSL and rc4

Sat Mar 16 17:25:09 GMT 2013

On 16/03/13 16:37, carlhoerberg wrote:
> If you specify this chipers:
> {ciphers,[{rsa,rc4_128,sha},{rsa,aes_128_cbc,sha}]}]}
> and a client connects with rsa,rc4_128,sha, RabbitMQ 3.0 memory usage will
> grow indefinitely until i crashes.

Works fine for me:

$ ./scripts/rabbitmqctl status
Status of node rabbit at i ...
[{pid,5015},
  {running_applications,[{rabbit,"RabbitMQ","%%VSN%%"},
                         {ssl,"Erlang/OTP SSL application","5.2.1"},
                         {public_key,"Public key infrastructure","0.18"},
                         {crypto,"CRYPTO version 2","2.3"},
                         {mnesia,"MNESIA  CXC 138 12","4.8"},
                         {os_mon,"CPO  CXC 138 46","2.2.11"},
                         {xmerl,"XML parser","1.3.3"},
                         {sasl,"SASL  CXC 138 11","2.3.1"},
                         {stdlib,"ERTS  CXC 138 10","1.19.1"},
                         {kernel,"ERTS  CXC 138 10","2.16.1"}]},
  {os,{unix,linux}},
  {erlang_version,"Erlang R16B (erts-5.10.1) [source] [64-bit] [smp:8:8] 
[async-threads:30] [hipe] [kernel-poll:true]\n"},
...]
...done.

$ ./scripts/rabbitmqctl environment
Application environment of node rabbit at i ...
[...
  {ssl_options,[{cacertfile,"certs/testca/cacert.pem"},
                {certfile,"certs/server/cert.pem"},
                {keyfile,"certs/server/key.pem"},
                {verify_code,1},
                {ciphers,[{rsa,rc4_128,sha},{rsa,aes_128_cbc,sha}]}]},
  ...]
...done.

$ ./scripts/rabbitmqctl list_connections name ssl_key_exchange 
ssl_cipher ssl_hash
Listing connections ...
127.0.0.1:51467 -> 127.0.0.1:5671	rsa	rc4_128	sha
...done.

That connection is from an Erlang client.

So presumably there is something different in your environment. Any idea 
what that might be?

Regards,

Matthias.