[GHC] #15371: Eventlog framework outputs environment variables which may cause a security issue

[GHC]

#15371: Eventlog framework outputs environment variables which may cause a security
issue
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           Reporter:  maoe           |             Owner:  (none)
               Type:  feature        |            Status:  new
  request                            |
           Priority:  normal         |         Milestone:
          Component:  Runtime        |           Version:  8.4.3
  System                             |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Other
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 The eventlog framework currently writes all environment variables to the
 eventlog file. This may cause a security issue as some external tools
 expect user to set credentials in environment variables. It's possible for
 the user to publish an eventlog which contains credentials without knowing
 it.

 In general it's not a good idea to set credentials in environment
 variables but I think GHC should stop writing environment variables to the
 eventlog implicitly and this feature should be opt-in.

 I'm not sure if this feature is widely used or if we can just drop it. If
 it's used to some extend maybe we can provide a function that does this
 job in a library.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15371>
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