Net::CIDR::Lite vulnerabilities

In Net::CIDR::Lite for Perl (versions before 0.24), extraneous zero characters in CIDR mask values are not properly considered, which may allow IP ACL bypass. Masks like "/00" and "/01" pass validation and parse to the same prefix as their unpadded value.

Net::CIDR::Lite for Perl before version 0.24 does not properly validate IP address and CIDR mask inputs, which may allow IP ACL bypass. Inputs with trailing newline or non-ASCII digit characters pass validators but are re-encoded to a different address, causing incorrect matches.

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. _pack_ipv6() includes the sentinel byte from _pack_ipv4(), producing an 18-byte value instead of 17 bytes, causing incorrect results in mask operations and in find()/bin_find().