Samba maintainers have released new versions of their networking software to patch two critical vulnerabilities. The vulnerabilities could allow unprivileged remote attackers to launch DoS attacks against servers and change any other users’ passwords, including admin’s. Samba allows non-Windows operating systems to share network shared folders, files, and printers with Windows operating system. The maintainers of Samba have addressed both vulnerabilities with the release of new Samba versions 4.7.6, 4.6.14, and 4.5.16 and advised administrators to update vulnerable servers immediately.
Source: https://thehackernews.com/2018/03/samba-server-vulnerability.html