A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.
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{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "ctdb" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "ctdb-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libnss-winbind" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libnss-winbind-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libpam-winbind" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libpam-winbind-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libparse-pidl-perl" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libparse-pidl-perl-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libsmbclient" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libsmbclient-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libsmbclient-dev" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libsmbclient-dev-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libwbclient-dev" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libwbclient-dev-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libwbclient0" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "libwbclient0-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "python-samba" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "registry-tools" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "registry-tools-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-common" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-common-bin" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-common-bin-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-dbg" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-dev" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-dev-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-dsdb-modules" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-dsdb-modules-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-libs" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-libs-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-testsuite" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-testsuite-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-vfs-modules" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "samba-vfs-modules-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "smbclient" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "smbclient-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "winbind" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.32", "binary_name": "winbind-dbgsym" } ] }
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{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "ctdb" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "ctdb-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libnss-winbind" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libnss-winbind-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libpam-winbind" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libpam-winbind-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libsmbclient" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libsmbclient-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libsmbclient-dev" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libwbclient-dev" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libwbclient0" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "libwbclient0-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "python3-samba" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "python3-samba-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "registry-tools" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "registry-tools-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-common" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-common-bin" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-common-bin-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-dev" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-dsdb-modules" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-dsdb-modules-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-libs" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-libs-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-testsuite" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-testsuite-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-vfs-modules" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "samba-vfs-modules-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "smbclient" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "smbclient-dbgsym" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "winbind" }, { "binary_version": "2:4.11.6+dfsg-0ubuntu1.6", "binary_name": "winbind-dbgsym" } ] }