[tor-bugs] #16813 [Tor Browser]: Tor Browser + nscd leaks Tor DNS to System Cache to System DNS Servers
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Wed Sep 2 02:44:56 UTC 2015
#16813: Tor Browser + nscd leaks Tor DNS to System Cache to System DNS Servers
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Reporter: teor | Owner: tbb-team
Type: defect | Status: new
Priority: normal | Milestone:
Component: Tor Browser | Version:
Resolution: | Keywords: TorBrowserTeam201509
Actual Points: | Parent ID:
Points: |
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Comment (by mikeperry):
FWIW, I am unable to reproduce this. I installed nscd on an Ubuntu 14.04
machine, restarted Tor Browser, browsed with tcpdump watching port 53, and
saw no DNS leaks.
I suspect that the answer on https://tor.stackexchange.com/questions/4350
/tor-dns-cached is right. Probably nscd cached an earlier non-TBB DNS
query for something, and was refreshing it because the TTL expired, or for
other reasons unrelated to TBB activity.
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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16813#comment:5>
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