[issue36384] ipaddress Should not reject IPv4 addresses with leading zeroes as ambiguously octal

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

See also the article "Ping and FTP Resolve IP Address with Leading Zero as Octal" (https://web.archive.org/web/20061206211851/http://support.microsoft.com/kb/115388).

This is still true in Windows 10.

So it is safer to reject IPv4 addresses with leading zeros that can be ambiguously interpreted. Otherwise this can create a security hole.

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nosy: +serhiy.storchaka

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