Security Advisories (1)
CVE-2025-40909 (2025-05-30)

Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

NAME

Net::Domain - Attempt to evaluate the current host's internet name and domain

SYNOPSIS

use Net::Domain qw(hostname hostfqdn hostdomain domainname);

DESCRIPTION

Using various methods attempt to find the Fully Qualified Domain Name (FQDN) of the current host. From this determine the host-name and the host-domain.

Each of the functions will return undef if the FQDN cannot be determined.

Functions

hostfqdn()

Identify and return the FQDN of the current host.

domainname()

An alias for hostfqdn().

hostname()

Returns the smallest part of the FQDN which can be used to identify the host.

hostdomain()

Returns the remainder of the FQDN after the hostname has been removed.

EXPORTS

The following symbols are, or can be, exported by this module:

Default Exports

None.

Optional Exports

hostname, hostdomain, hostfqdn, domainname.

Export Tags

None.

KNOWN BUGS

See https://rt.cpan.org/Dist/Display.html?Status=Active&Queue=libnet.

AUTHOR

Graham Barr <gbarr@pobox.com>.

Adapted from Sys::Hostname by David Sundstrom <sunds@asictest.sc.ti.com>.

Steve Hay <shay@cpan.org> is now maintaining libnet as of version 1.22_02.

COPYRIGHT

Copyright (C) 1995-1998 Graham Barr. All rights reserved.

Copyright (C) 2013-2014, 2020 Steve Hay. All rights reserved.

LICENCE

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself, i.e. under the terms of either the GNU General Public License or the Artistic License, as specified in the LICENCE file.

VERSION

Version 3.15

DATE

20 March 2023

HISTORY

See the Changes file.