A flaw was found in the way samba handled file and directory permissions. An authenticated user could use this flaw to gain access to certain file and directory information which otherwise would be unavailable to the attacker.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "libwbclient-dev": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-libs": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "registry-tools": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-common-bin": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbsharemodes0-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libwbclient0-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libpam-winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libnss-winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-doc": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbsharemodes0": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-vfs-modules": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "winbind": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "python-samba-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-dsdb-modules-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbsharemodes-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-common-bin-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-testsuite": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "smbclient-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbclient": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbsharemodes-dev": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbclient-dev": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libwbclient0": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libparse-pidl-perl-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-dsdb-modules": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "registry-tools-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-vfs-modules-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "python-samba": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libpam-smbpass-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbclient-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libnss-winbind": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libsmbclient-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-libs-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-dbg": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-testsuite-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-common": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libpam-winbind": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "smbclient": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libwbclient-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "samba-dev": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libparse-pidl-perl": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11", "libpam-smbpass": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm11" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libwbclient-dev": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-libs": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "registry-tools": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-common-bin": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libwbclient0-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-dsdb-modules-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libpam-winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libnss-winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "winbind": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-vfs-modules": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-common-bin-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-testsuite": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "smbclient-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libsmbclient": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libsmbclient-dev": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libwbclient0": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libparse-pidl-perl-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-dsdb-modules": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "registry-tools-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-vfs-modules-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "python-samba": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "ctdb": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libsmbclient-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libnss-winbind": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libsmbclient-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-libs-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-dbg": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-testsuite-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-common": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "winbind-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libpam-winbind": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "smbclient": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libwbclient-dev-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "samba-dev": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "libparse-pidl-perl": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "ctdb-dbgsym": "2:4.3.11+dfsg-0ubuntu0.16.04.32" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libwbclient-dev": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-libs": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "registry-tools": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-common-bin": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libwbclient0-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-dsdb-modules-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libpam-winbind-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libnss-winbind-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "winbind": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-vfs-modules": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "python-samba-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-common-bin-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-testsuite": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "smbclient-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libsmbclient": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libwbclient0": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libsmbclient-dev": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "python-samba": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-dsdb-modules": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "registry-tools-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-vfs-modules-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "ctdb": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libnss-winbind": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libsmbclient-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-libs-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "winbind-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-testsuite-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-common": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libpam-winbind": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "smbclient": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "samba-dev": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "libparse-pidl-perl": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21", "ctdb-dbgsym": "2:4.7.6+dfsg~ubuntu-0ubuntu2.21" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libwbclient-dev": "2:4.11.6+dfsg-0ubuntu1.6", "samba-libs": "2:4.11.6+dfsg-0ubuntu1.6", "registry-tools": "2:4.11.6+dfsg-0ubuntu1.6", "samba-common-bin": "2:4.11.6+dfsg-0ubuntu1.6", "libwbclient0-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "samba-dsdb-modules-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "libpam-winbind-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "libnss-winbind-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "python3-samba-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "winbind": "2:4.11.6+dfsg-0ubuntu1.6", "samba-vfs-modules": "2:4.11.6+dfsg-0ubuntu1.6", "samba-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "samba-common-bin-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "samba-testsuite": "2:4.11.6+dfsg-0ubuntu1.6", "smbclient-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "libsmbclient": "2:4.11.6+dfsg-0ubuntu1.6", "samba": "2:4.11.6+dfsg-0ubuntu1.6", "libsmbclient-dev": "2:4.11.6+dfsg-0ubuntu1.6", "libwbclient0": "2:4.11.6+dfsg-0ubuntu1.6", "samba-dsdb-modules": "2:4.11.6+dfsg-0ubuntu1.6", "python3-samba": "2:4.11.6+dfsg-0ubuntu1.6", "samba-vfs-modules-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "registry-tools-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "ctdb": "2:4.11.6+dfsg-0ubuntu1.6", "libnss-winbind": "2:4.11.6+dfsg-0ubuntu1.6", "libsmbclient-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "samba-libs-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "winbind-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "samba-testsuite-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6", "samba-common": "2:4.11.6+dfsg-0ubuntu1.6", "libpam-winbind": "2:4.11.6+dfsg-0ubuntu1.6", "smbclient": "2:4.11.6+dfsg-0ubuntu1.6", "samba-dev": "2:4.11.6+dfsg-0ubuntu1.6", "ctdb-dbgsym": "2:4.11.6+dfsg-0ubuntu1.6" } ] }