[tor-bugs] #33157 [Circumvention/Snowflake]: Client generates SDP with "IN IP4 0.0.0.0", causing proxy to send "client_ip=0.0.0.0" and bridge to send "USERADDR 0.0.0.0:1"

Sat Feb 8 15:33:50 UTC 2020

#33157: Client generates SDP with "IN IP4 0.0.0.0", causing proxy to send
"client_ip=0.0.0.0" and bridge to send "USERADDR 0.0.0.0:1"
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 Reporter:  dcf                      |          Owner:  (none)
     Type:  defect                   |         Status:  new
 Priority:  Medium                   |      Milestone:
Component:  Circumvention/Snowflake  |        Version:
 Severity:  Normal                   |     Resolution:
 Keywords:                           |  Actual Points:
Parent ID:                           |         Points:
 Reviewer:                           |        Sponsor:
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Comment (by arlolra):

 > I found it while testing proxy-go with a localhost client and a patch
 like:

 Something like that patch was useful when working on #19026 so would you
 consider merging,
 https://github.com/keroserene/snowflake/commit/dbd733e4b1430c046ec11e8052efdbac6010e58a

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33157#comment:4>
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