Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not require SMB signing within a DCERPC session over ncacn_np, which allows man-in-the-middle attackers to spoof SMB clients by modifying the client-server data stream.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade samba | Sep 20, 2017 | Apr 24, 2016 |
| Centos_linux | — | Upgrade samba-client-libsUpgrade samba-test-libsUpgrade samba-docUpgrade samba3x-swatUpgrade samba-winbind-modulesUpgrade samba-common-libsUpgrade sambaUpgrade samba-clientUpgrade samba-swatUpgrade libsmbclientUpgrade samba-libsUpgrade samba3x-winbind-develUpgrade samba3x-winbindUpgrade samba-pythonUpgrade samba-common-toolsUpgrade samba-winbind-krb5-locatorUpgrade libwbclientUpgrade samba-develUpgrade libwbclient-develUpgrade samba-domainjoin-guiUpgrade samba-dc-libsUpgrade samba-winbindUpgrade samba-winbind-clientsUpgrade libsmbclient-develUpgrade samba-test-develUpgrade samba3x-clientUpgrade samba3x-domainjoin-guiUpgrade samba3x-docUpgrade samba-commonUpgrade samba-testUpgrade samba-winbind-develUpgrade samba3x-commonUpgrade ctdb-testsUpgrade samba-dcUpgrade samba-glusterfsUpgrade ctdb-develUpgrade samba-vfs-glusterfsUpgrade samba3xUpgrade samba-pidlUpgrade ctdb | Jul 6, 2016 | Apr 13, 2016 |
| Debian | — | Upgrade samba | Apr 14, 2016 | Apr 13, 2016 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | May 17, 2016 |
| Freebsd | — | Upgrade samba43Upgrade samba36Upgrade samba41Upgrade samba42Upgrade samba4Upgrade samba44 | Dec 10, 2025 | Apr 12, 2016 |
| Gentoo Linux | — | Upgrade net-fs/samba. | Oct 30, 2017 | Apr 24, 2016 |
| Hpux | — | Update CIFS-Server.CIFS-UTIL to the latest versionUpdate CIFS-Server.CIFS-RUN to the latest versionUpdate CIFS-Server.CIFS-ADMIN to the latest versionUpdate CIFS-Server.CIFS-DOC to the latest versionUpdate CIFS-Server.CIFS-LIB to the latest versionUpdate CIFS-Development.CIFS-PRG to the latest version | Aug 11, 2017 | Apr 24, 2016 |
| Huawei Euleros 2_0_sp1 | — | Upgrade libldbUpgrade libtdbUpgrade libwbclientUpgrade tdb-toolsUpgrade python-tdbUpgrade libsmbclientUpgrade libteventUpgrade pytallocUpgrade samba-common-libsUpgrade libtallocUpgrade samba-pythonUpgrade samba-libsUpgrade python-teventUpgrade samba-winbindUpgrade samba-winbind-modulesUpgrade samba-client-libsUpgrade samba-common-toolsUpgrade sambaUpgrade samba-commonUpgrade samba-winbind-clientsUpgrade samba-client | Nov 30, 2017 | Apr 24, 2016 |
| Oracle Solaris | — | Upgrade service/network/samba to version 4.4.5-0.175.3.14.0.1.0 on Solaris 11.3Upgrade library/samba/libsmbclient to version 4.4.5-0.175.3.14.0.1.0 on Solaris 11.3 | May 29, 2017 | Apr 24, 2016 |
| Oracle_linux | — | Upgrade tdb-toolsUpgrade libtdbUpgrade openchange-develUpgrade openchange-devel-docsUpgrade ipa-server-selinuxUpgrade samba3xUpgrade samba-winbindUpgrade libwbclient-develUpgrade samba4-winbind-krb5-locatorUpgrade python-teventUpgrade python-tdbUpgrade samba-swatUpgrade samba-dcUpgrade samba3x-docUpgrade samba4-commonUpgrade samba4-pythonUpgrade samba-docUpgrade openchange-clientUpgrade ipa-pythonUpgrade samba-winbind-develUpgrade samba3x-domainjoin-guiUpgrade ipa-admintoolsUpgrade samba4-testUpgrade samba-winbind-modulesUpgrade pytalloc-develUpgrade libwbclientUpgrade sambaUpgrade ctdbUpgrade samba4-libsUpgrade libtevent-develUpgrade samba-pythonUpgrade pyldb-develUpgrade libldb-develUpgrade samba4-develUpgrade libtalloc-develUpgrade samba-pidlUpgrade ctdb-testsUpgrade ipa-server-dnsUpgrade samba3x-clientUpgrade libsmbclientUpgrade samba4-dcUpgrade libtallocUpgrade samba-client-libsUpgrade samba-vfs-glusterfsUpgrade samba-common-toolsUpgrade ipa-server-trust-adUpgrade samba4Upgrade ipa-clientUpgrade samba-domainjoin-guiUpgrade samba3x-winbind-develUpgrade libtdb-develUpgrade pytallocUpgrade samba-commonUpgrade openchangeUpgrade samba4-winbind-clientsUpgrade samba-winbind-krb5-locatorUpgrade samba-common-libsUpgrade libsmbclient-develUpgrade samba-develUpgrade pyldbUpgrade libldbUpgrade ldb-toolsUpgrade samba3x-winbindUpgrade ipa-serverUpgrade ctdb-develUpgrade samba-test-libsUpgrade libteventUpgrade samba4-pidlUpgrade samba-libsUpgrade samba4-dc-libsUpgrade samba-testUpgrade samba4-clientUpgrade samba3x-commonUpgrade samba-test-develUpgrade samba4-winbindUpgrade samba3x-swatUpgrade samba-dc-libsUpgrade samba-clientUpgrade samba-winbind-clientsUpgrade samba-glusterfs | Apr 24, 2016 | Apr 24, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 12, 2016 |
| Samba | — | Upgrade to Samba version 4.2.11Upgrade to Samba version 4.4.2Upgrade to Samba version 4.3.8 | Apr 12, 2016 | Apr 12, 2016 |
| Suse | — | Upgrade libsmbclient-raw0Upgrade libwbclient0Upgrade libsmbclient0-x86Upgrade libnetapi0-32bitUpgrade samba-testUpgrade libsamba-credentials0Upgrade libndr-standard0Upgrade libsamba-hostconfig0Upgrade libdcerpc-atsvc-develUpgrade libndr-nbt-develUpgrade libtevent-util0Upgrade libsamba-passdb0Upgrade libsmbclient0Upgrade samba-develUpgrade libtalloc2-32bitUpgrade samba-krb-printingUpgrade libsamba-errors-develUpgrade libsamba-util0-32bitUpgrade libgensec0Upgrade libdcerpc0Upgrade libldb1Upgrade libsamba-errors0-32bitUpgrade libtdb1Upgrade libndr-standard-develUpgrade libsmbldap0Upgrade libsmbldap2Upgrade libsamdb-develUpgrade libtdb-develUpgrade libnetapi-develUpgrade libsamba-policy-python3-develUpgrade libtevent0-32bitUpgrade samba-test-develUpgrade libndr-krb5pac0-32bitUpgrade libsmbldap0-32bitUpgrade samba-client-x86Upgrade libsmbsharemodes-develUpgrade libsmbclient-develUpgrade libsmbclient0-32bitUpgrade ctdbUpgrade ldapsmbUpgrade libdcerpc-binding0-32bitUpgrade libregistry0Upgrade libsamba-credentials-develUpgrade libsamba-util0Upgrade samba-client-32bitUpgrade samba-libs-32bitUpgrade libsamba-policy0-python3Upgrade libdcerpc-samr-develUpgrade libsamba-passdb-develUpgrade ctdb-develUpgrade libdcerpc0-32bitUpgrade libsamba-policy-develUpgrade libtevent-util-develUpgrade libsmbconf-develUpgrade libndr0-32bitUpgrade libsamdb0-32bitUpgrade libsamba-credentials0-32bitUpgrade samba-clientUpgrade samba-libsUpgrade samba-kdcUpgrade libsamba-hostconfig0-32bitUpgrade libndr1Upgrade libtalloc2Upgrade samba-winbindUpgrade samba-libs-python3-32bitUpgrade samba-x86Upgrade libtdb1-32bitUpgrade libtevent0Upgrade libgensec0-32bitUpgrade libsmbldap2-32bitUpgrade libtdb1-x86Upgrade libsmbsharemodes0Upgrade libtalloc-develUpgrade libtalloc2-x86Upgrade libndr-krb5pac0Upgrade libsamba-hostconfig-develUpgrade libwbclient-develUpgrade libsmbclient-raw-develUpgrade libndr-standard0-32bitUpgrade samba-core-develUpgrade libndr-krb5pac-develUpgrade libwbclient0-x86Upgrade samba-cephUpgrade libtevent-develUpgrade libwbclient0-32bitUpgrade samba-python3Upgrade libsamba-passdb0-32bitUpgrade libndr-nbt0Upgrade libtevent0-x86Upgrade libsamba-errors0Upgrade libsamba-util-develUpgrade samba-libs-python3Upgrade libldb-develUpgrade libsmbclient-raw0-32bitUpgrade libsmbconf0Upgrade libndr-nbt0-32bitUpgrade libtevent-util0-32bitUpgrade samba-32bitUpgrade libsamba-policy0Upgrade libregistry-develUpgrade libdcerpc-samr0Upgrade samba-pythonUpgrade samba-winbind-x86Upgrade libsamdb0Upgrade samba-dsdb-modulesUpgrade libndr0Upgrade libsmbconf0-32bitUpgrade libdcerpc-binding0Upgrade samba-winbind-32bitUpgrade samba-docUpgrade libgensec-develUpgrade libndr-develUpgrade libdcerpc-atsvc0Upgrade libnetapi0Upgrade sambaUpgrade libndr1-32bitUpgrade libdcerpc-develUpgrade libsmbldap-devel | Apr 13, 2016 | Apr 13, 2016 |
| Ubuntu | — | Upgrade samba | Apr 24, 2016 | Apr 24, 2016 |
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