All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "ctdb" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "ctdb-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libnss-winbind" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libnss-winbind-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libpam-winbind" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libpam-winbind-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libparse-pidl-perl" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libparse-pidl-perl-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libsmbclient" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libsmbclient-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libsmbclient-dev" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libsmbclient-dev-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libwbclient-dev" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libwbclient-dev-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libwbclient0" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "libwbclient0-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "python-samba" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "registry-tools" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "registry-tools-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-common" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-common-bin" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-common-bin-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-dbg" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-dev" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-dev-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-dsdb-modules" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-dsdb-modules-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-libs" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-libs-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-testsuite" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-testsuite-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-vfs-modules" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "samba-vfs-modules-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "smbclient" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "smbclient-dbgsym" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "winbind" }, { "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.25", "binary_name": "winbind-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "ctdb" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "ctdb-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libnss-winbind" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libnss-winbind-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libpam-winbind" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libpam-winbind-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libparse-pidl-perl" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libsmbclient" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libsmbclient-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libsmbclient-dev" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libwbclient-dev" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libwbclient0" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "libwbclient0-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "python-samba" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "python-samba-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "registry-tools" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "registry-tools-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-common" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-common-bin" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-common-bin-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-dev" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-dsdb-modules" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-dsdb-modules-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-libs" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-libs-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-testsuite" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-testsuite-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-vfs-modules" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "samba-vfs-modules-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "smbclient" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "smbclient-dbgsym" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "winbind" }, { "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.15", "binary_name": "winbind-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "ctdb" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "ctdb-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libnss-winbind" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libnss-winbind-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libpam-winbind" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libpam-winbind-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libsmbclient" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libsmbclient-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libsmbclient-dev" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libwbclient-dev" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libwbclient0" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "libwbclient0-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "python3-samba" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "python3-samba-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "registry-tools" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "registry-tools-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-common" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-common-bin" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-common-bin-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-dev" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-dsdb-modules" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-dsdb-modules-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-libs" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-libs-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-testsuite" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-testsuite-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-vfs-modules" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "samba-vfs-modules-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "smbclient" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "smbclient-dbgsym" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "winbind" }, { "binary_version": "2:4.11.5+dfsg-1ubuntu1", "binary_name": "winbind-dbgsym" } ] }