[tor-bugs] #32363 [Core Tor/Tor]: tor_inet_aton parsing of IPv4 literals is too lax

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#32363: tor_inet_aton parsing of IPv4 literals is too lax
--------------------------+------------------------------
 Reporter:  liberat       |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Component:  Core Tor/Tor
  Version:  Tor: 0.4.1.6  |       Severity:  Normal
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------
 The function tor_inet_aton accepts strings that include leading zeroes.

 For example, "010.010.010.010" is parsed as "10.10.10.10".

 This could potentially be a problem because "010.010.010.010" is obsolete
 notation for an ''octal'' IP address.

 At least in glibc, inet_aton or getaddrinfo treats "010.010.010.010" as
 "8.8.8.8", whereas inet_ntop rejects it as invalid.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32363>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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