[issue22282] ipaddress module accepts octal formatted IPv4 addresses in IPv6 addresses

[Irit Katriel]

Irit Katriel  added the comment:

This is what I get now on 3.11:


>>> ipaddress.ip_address("::1.0.0.00")
Traceback (most recent call last):
  File "", line 1, in 
  File "C:\Users\User\src\cpython\Lib\ipaddress.py", line 54, in ip_address
raise ValueError('%r does not appear to be an IPv4 or IPv6 address' %
^
ValueError: '::1.0.0.00' does not appear to be an IPv4 or IPv6 address

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nosy: +iritkatriel
resolution:  -> fixed
stage:  -> resolved
status: open -> closed

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[issue22282] ipaddress module accepts octal formatted IPv4 addresses in IPv6 addresses

[Julian Berman]

Change by Julian Berman :


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nosy: +Julian

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[issue22282] ipaddress module accepts octal formatted IPv4 addresses in IPv6 addresses

[Berker Peksag]

Changes by Berker Peksag :


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nosy: +ncoghlan, pitrou, pmoody

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[issue22282] ipaddress module accepts octal formatted IPv4 addresses in IPv6 addresses

[Fabian]

Fabian added the comment:

The patch adds an optional keyword which only accepts decimal numbers.

--
keywords: +patch
Added file: http://bugs.python.org/file36489/ipaddr.patch

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[issue22282] ipaddress module accepts octal formatted IPv4 addresses in IPv6 addresses

[Fabian]

New submission from Fabian:

The ipaddress module accepts IPv6 addresses if the IPv4 address is formatted as 
an octal number, but http://tools.ietf.org/html/rfc3986#section-3.2.2 doesn't 
allow leading zeroes in the IPv4 address.

This is the current behaviour (in 3.4.1):

>>> ipaddress.ip_address("::1.0.0.00")
IPv6Address('::100:0')

Expected:

>>> ipaddress.ip_address("::1.0.0.00")
Traceback (most recent call last):
  File "", line 1, in 
  File "3.4.1/lib/python3.4/ipaddress.py", line 54, in ip_address
address)
ValueError: '::1.0.0.00' does not appear to be an IPv4 or IPv6 address

Because I didn't know it better, I first tried to patch the backport but this 
might be still applicable the official code: 
https://github.com/phihag/ipaddress/pull/12

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messages: 225950
nosy: xZise
priority: normal
severity: normal
status: open
title: ipaddress module accepts octal formatted IPv4 addresses in IPv6 addresses
type: behavior
versions: Python 3.4

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