{"id":"UBUNTU-CVE-2016-0771","details":"The internal DNS server in Samba 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4, when an AD DC is configured, allows remote authenticated users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory by uploading a crafted DNS TXT record.","modified":"2026-04-22T10:46:38.780183Z","published":"2016-03-08T00:00:00Z","related":["USN-2922-1"],"upstream":["CVE-2016-0771"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-0771"},{"type":"REPORT","url":"https://www.samba.org/samba/security/CVE-2016-0771.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2922-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-0771"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.1.6+dfsg-1ubuntu2.14.04.13?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.1.6+dfsg-1ubuntu2.14.04.13"}]}],"versions":["2:3.6.18-1ubuntu3","2:4.0.10+dfsg-4ubuntu2","2:4.0.13+dfsg-1ubuntu1","2:4.1.3+dfsg-2ubuntu2","2:4.1.3+dfsg-2ubuntu3","2:4.1.3+dfsg-2ubuntu4","2:4.1.3+dfsg-2ubuntu5","2:4.1.6+dfsg-1ubuntu1","2:4.1.6+dfsg-1ubuntu2","2:4.1.6+dfsg-1ubuntu2.14.04.1","2:4.1.6+dfsg-1ubuntu2.14.04.2","2:4.1.6+dfsg-1ubuntu2.14.04.3","2:4.1.6+dfsg-1ubuntu2.14.04.4","2:4.1.6+dfsg-1ubuntu2.14.04.5","2:4.1.6+dfsg-1ubuntu2.14.04.7","2:4.1.6+dfsg-1ubuntu2.14.04.8","2:4.1.6+dfsg-1ubuntu2.14.04.9","2:4.1.6+dfsg-1ubuntu2.14.04.11","2:4.1.6+dfsg-1ubuntu2.14.04.12"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"libnss-winbind"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"libpam-smbpass"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"libpam-winbind"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"libsmbclient"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"libsmbsharemodes0"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"libwbclient0"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"python-samba"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"registry-tools"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"samba"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"samba-common"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"samba-common-bin"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"samba-libs"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"samba-testsuite"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"smbclient"},{"binary_version":"2:4.1.6+dfsg-1ubuntu2.14.04.13","binary_name":"winbind"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-0771.json"}},{"package":{"name":"samba","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.3.6+dfsg-1ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.3.6+dfsg-1ubuntu1"}]}],"versions":["2:4.1.17+dfsg-4ubuntu2","2:4.1.20+dfsg-1ubuntu1","2:4.1.20+dfsg-1ubuntu2","2:4.1.20+dfsg-1ubuntu3","2:4.1.20+dfsg-1ubuntu5","2:4.3.3+dfsg-1ubuntu1","2:4.3.3+dfsg-1ubuntu2","2:4.3.3+dfsg-1ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"ctdb"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"libnss-winbind"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"libpam-winbind"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"libsmbclient"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"libwbclient0"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"python-samba"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"registry-tools"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"samba"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"samba-common"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"samba-common-bin"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"samba-libs"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"samba-testsuite"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"smbclient"},{"binary_version":"2:4.3.6+dfsg-1ubuntu1","binary_name":"winbind"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-0771.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}