{"id":"USN-3976-1","summary":"samba vulnerability","details":"Isaac Boukris and Andrew Bartlett discovered that Samba incorrectly checked\nS4U2Self packets. In certain environments, a remote attacker could possibly\nuse this issue to escalate privileges.\n","modified":"2026-04-22T09:57:11.372444Z","published":"2019-05-14T11:44:31Z","related":["UBUNTU-CVE-2018-16860"],"upstream":["CVE-2018-16860","UBUNTU-CVE-2018-16860"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3976-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16860"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.16.04.20?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.3.11+dfsg-0ubuntu0.16.04.20"}]}],"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","2:4.3.6+dfsg-1ubuntu1","2:4.3.8+dfsg-0ubuntu1","2:4.3.9+dfsg-0ubuntu0.16.04.1","2:4.3.9+dfsg-0ubuntu0.16.04.2","2:4.3.9+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.1","2:4.3.11+dfsg-0ubuntu0.16.04.3","2:4.3.11+dfsg-0ubuntu0.16.04.5","2:4.3.11+dfsg-0ubuntu0.16.04.6","2:4.3.11+dfsg-0ubuntu0.16.04.7","2:4.3.11+dfsg-0ubuntu0.16.04.8","2:4.3.11+dfsg-0ubuntu0.16.04.9","2:4.3.11+dfsg-0ubuntu0.16.04.10","2:4.3.11+dfsg-0ubuntu0.16.04.11","2:4.3.11+dfsg-0ubuntu0.16.04.12","2:4.3.11+dfsg-0ubuntu0.16.04.13","2:4.3.11+dfsg-0ubuntu0.16.04.15","2:4.3.11+dfsg-0ubuntu0.16.04.16","2:4.3.11+dfsg-0ubuntu0.16.04.17","2:4.3.11+dfsg-0ubuntu0.16.04.18","2:4.3.11+dfsg-0ubuntu0.16.04.19"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"ctdb"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"libnss-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"libpam-winbind"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"libsmbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"libwbclient0"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"python-samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"registry-tools"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"samba"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"samba-common"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"samba-common-bin"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"samba-libs"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"samba-testsuite"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"smbclient"},{"binary_version":"2:4.3.11+dfsg-0ubuntu0.16.04.20","binary_name":"winbind"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3976-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2018-16860"}]}}},{"package":{"name":"samba","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.7.6+dfsg~ubuntu-0ubuntu2.10?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10"}]}],"versions":["2:4.6.7+dfsg-1ubuntu3","2:4.7.1+dfsg-1ubuntu1","2:4.7.3+dfsg-1ubuntu1","2:4.7.4+dfsg-1ubuntu1","2:4.7.6+dfsg~ubuntu-0ubuntu1","2:4.7.6+dfsg~ubuntu-0ubuntu2","2:4.7.6+dfsg~ubuntu-0ubuntu2.2","2:4.7.6+dfsg~ubuntu-0ubuntu2.4","2:4.7.6+dfsg~ubuntu-0ubuntu2.5","2:4.7.6+dfsg~ubuntu-0ubuntu2.6","2:4.7.6+dfsg~ubuntu-0ubuntu2.7","2:4.7.6+dfsg~ubuntu-0ubuntu2.9"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"ctdb"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"libnss-winbind"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"libpam-winbind"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"libparse-pidl-perl"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"libsmbclient"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"libwbclient0"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"python-samba"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"registry-tools"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"samba"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"samba-common"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"samba-common-bin"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"samba-dsdb-modules"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"samba-libs"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"samba-testsuite"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"samba-vfs-modules"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"smbclient"},{"binary_version":"2:4.7.6+dfsg~ubuntu-0ubuntu2.10","binary_name":"winbind"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3976-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2018-16860"}]}}}],"schema_version":"1.7.5"}