The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename.Referenceshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpdhttp://www.ubuntu.com/usn/USN-3096-1http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlhttp://www.securitytracker.com/id/1034782http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.htmlhttps://www.kb.cert.org/vuls/id/718152http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.htmlhttp://support.ntp.org/bin/view/Main/NtpBug2938https://security.netapp.com/advisory/ntap-20171031-0001/http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.htmlhttps://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.aschttps://bto.bluecoat.com/security-advisory/sa113http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlhttps://security.gentoo.org/glsa/201607-15