[tor-bugs] #29172 [Obfuscation/Snowflake]: Redeploy Snowflake services with go1.11.15

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#29172: Redeploy Snowflake services with go1.11.15
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     Reporter:  dcf                    |      Owner:  (none)
         Type:  task                   |     Status:  new
     Priority:  Medium                 |  Milestone:
    Component:  Obfuscation/Snowflake  |    Version:
     Severity:  Normal                 |   Keywords:
Actual Points:                         |  Parent ID:
       Points:                         |   Reviewer:
      Sponsor:                         |
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 [https://github.com/golang/go/issues/29903 CVE-2019-6486] is a DoS on the
 implementation of certain elliptic curves, fixed in go1.11.5.

 Redeploy services that use crypto/tls and therefore may be exposed to the
 bug:
 - broker at snowflake-broker.bamsoftware.com
 - WebSocket server at snowflake.bamsoftware.com
 - standalone proxy-go instances (currently at snowflake.bamsoftware.com)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29172>
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