libnet-netmask-perl is vulnerable to privilege escalation. The vulnerability exists due to extra zero characters at the begining of an IP address string not validated properly giving attackers bypass access control that is based on IP addresses.
blog.urth.org/2021/03/29/security-issues-in-perl-ip-address-distros/
lists.fedoraproject.org/archives/list/[email protected]/message/CBJVLXJSWN6DKSF5ADUEERI6M23R3GGP/
lists.fedoraproject.org/archives/list/[email protected]/message/JF4CYIZELC3NISB3RMV4OCI4GYBC557B/
lists.fedoraproject.org/archives/list/[email protected]/message/Y7JIPQAY5OZ5D3DA7INQILU7SGHTHMWB/
metacpan.org/changes/distribution/Net-Netmask#L11-22
security-tracker.debian.org/tracker/CVE-2021-29424
security.netapp.com/advisory/ntap-20210604-0007/