samba is vulnerable to arbitrary code execution. A use-after-free flaw was found in the way samba servers handled certain SMB1 requests. An unauthenticated attacker could send specially-crafted SMB1 requests to cause the server to crash or execute arbitrary code.
www.securityfocus.com/bid/101907
www.securitytracker.com/id/1039856
www.ubuntu.com/usn/USN-3486-1
access.redhat.com/errata/RHSA-2017:3260
access.redhat.com/errata/RHSA-2017:3261
access.redhat.com/errata/RHSA-2017:3278
access.redhat.com/security/updates/classification/#important
security.gentoo.org/glsa/201805-07
support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_us
www.debian.org/security/2017/dsa-4043
www.samba.org/samba/security/CVE-2017-14746.html
www.synology.com/support/security/Synology_SA_17_72_Samba