[GHC] #2391: Network.listenOn (PortNumber n) Sometimes Picks IPv6

[GHC]

#2391: Network.listenOn (PortNumber n) Sometimes Picks IPv6
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 Reporter:  cjs                |          Owner:  bos     
     Type:  bug                |         Status:  assigned
 Priority:  normal             |      Milestone:  Not GHC 
Component:  libraries/network  |        Version:  6.8.3   
 Severity:  normal             |     Resolution:          
 Keywords:                     |     Difficulty:  Unknown 
 Testcase:                     |   Architecture:  Multiple
       Os:  Multiple           |  
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Comment (by cjs):

 Here is a document discussing the security issues with IPv4-mapped
 addresses:

   ftp://ftp.itojun.org/pub/paper/draft-itojun-v6ops-v4mapped-
 harmful-01.txt

 I'd say we definitely don't want to have to force people to enable this
 just to use Network, which is in the end supposed to make life simpler for
 basic networking.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2391#comment:6>
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