The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before 4.1.17, and 4.2.x before 4.2.0rc5 performs a free operation on an uninitialized stack pointer, which allows remote attackers to execute arbitrary code via crafted Netlogon packets that use the ServerPasswordSet RPC API, as demonstrated by packets reaching the _netr_ServerPasswordSet function in rpc_server/netlogon/srv_netlog_nt.c.
https://www.samba.org/samba/security/CVE-2015-0240
https://www.exploit-db.com/exploits/36741/
https://support.lenovo.com/us/en/product_security/samba_remote_vuln
https://support.lenovo.com/product_security/samba_remote_vuln
https://bugzilla.redhat.com/show_bug.cgi?id=1191325
https://access.redhat.com/articles/1346913
http://www.ubuntu.com/usn/USN-2508-1
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.360345
http://www.securitytracker.com/id/1031783
http://www.securityfocus.com/bid/72711
http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
http://www.mandriva.com/security/advisories?name=MDVSA-2015:082
http://www.mandriva.com/security/advisories?name=MDVSA-2015:081
http://www.debian.org/security/2015/dsa-3171
http://security.gentoo.org/glsa/glsa-201502-15.xml
http://rhn.redhat.com/errata/RHSA-2015-0257.html
http://rhn.redhat.com/errata/RHSA-2015-0256.html
http://rhn.redhat.com/errata/RHSA-2015-0255.html
http://rhn.redhat.com/errata/RHSA-2015-0254.html
http://rhn.redhat.com/errata/RHSA-2015-0253.html
http://rhn.redhat.com/errata/RHSA-2015-0252.html
http://rhn.redhat.com/errata/RHSA-2015-0251.html
http://rhn.redhat.com/errata/RHSA-2015-0250.html
http://rhn.redhat.com/errata/RHSA-2015-0249.html
http://marc.info/?l=bugtraq&m=143039217203031&w=2
http://marc.info/?l=bugtraq&m=142722696102151&w=2
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00035.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00028.html