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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-develUpgrade samba-docUpgrade samba-client-libsUpgrade libsmbclientUpgrade samba-libsUpgrade samba-test-libsUpgrade libsmbclient-develUpgrade samba3x-winbindUpgrade samba-common-libsUpgrade samba-domainjoin-guiUpgrade samba-winbind-krb5-locatorUpgrade samba-swatUpgrade samba-winbind-modulesUpgrade samba-dc-libsUpgrade samba-pythonUpgrade samba3x-winbind-develUpgrade samba-clientUpgrade samba3x-swatUpgrade samba-common-toolsUpgrade libwbclient-develUpgrade samba-winbind-clientsUpgrade samba-winbindUpgrade sambaUpgrade libwbclientUpgrade samba-dcUpgrade samba3x-domainjoin-guiUpgrade ctdb-develUpgrade samba3x-clientUpgrade samba3x-docUpgrade samba-test-develUpgrade samba3x-commonUpgrade samba3xUpgrade samba-vfs-glusterfsUpgrade samba-glusterfsUpgrade samba-testUpgrade ctdb-testsUpgrade samba-pidlUpgrade samba-commonUpgrade ctdbUpgrade samba-winbind-devel | 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 samba42Upgrade samba4Upgrade samba44Upgrade samba43Upgrade samba36Upgrade samba41 | Dec 10, 2025 | Apr 12, 2016 |
| Gentoo Linux | — | Upgrade net-fs/samba. | Oct 30, 2017 | Apr 24, 2016 |
| Hpux | — | Update CIFS-Development.CIFS-PRG to the latest versionUpdate CIFS-Server.CIFS-LIB to the latest versionUpdate CIFS-Server.CIFS-ADMIN to the latest versionUpdate CIFS-Server.CIFS-DOC to the latest versionUpdate CIFS-Server.CIFS-RUN to the latest versionUpdate CIFS-Server.CIFS-UTIL to the latest version | Aug 11, 2017 | Apr 24, 2016 |
| Huawei Euleros 2_0_sp1 | — | Upgrade samba-clientUpgrade samba-winbind-modulesUpgrade pytallocUpgrade samba-pythonUpgrade samba-common-toolsUpgrade libtallocUpgrade samba-client-libsUpgrade python-teventUpgrade samba-winbindUpgrade samba-commonUpgrade libteventUpgrade samba-libsUpgrade samba-winbind-clientsUpgrade samba-common-libsUpgrade libsmbclientUpgrade sambaUpgrade libldbUpgrade libtdbUpgrade tdb-toolsUpgrade python-tdbUpgrade libwbclient | 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 libteventUpgrade samba-clientUpgrade samba4-winbindUpgrade samba4-pidlUpgrade samba-test-develUpgrade ctdb-develUpgrade samba4-winbind-clientsUpgrade ipa-serverUpgrade samba-winbind-clientsUpgrade libtdb-develUpgrade samba-domainjoin-guiUpgrade pytallocUpgrade samba3x-winbind-develUpgrade libsmbclient-develUpgrade samba3x-commonUpgrade ipa-clientUpgrade samba4Upgrade samba-glusterfsUpgrade samba-dc-libsUpgrade samba-test-libsUpgrade samba-libsUpgrade samba-testUpgrade samba-vfs-glusterfsUpgrade samba-common-toolsUpgrade samba4-dc-libsUpgrade ipa-server-trust-adUpgrade samba4-clientUpgrade samba-common-libsUpgrade samba-develUpgrade samba-commonUpgrade openchangeUpgrade ldb-toolsUpgrade samba3x-swatUpgrade libldbUpgrade samba3x-winbindUpgrade pyldbUpgrade samba-winbind-krb5-locatorUpgrade samba4-develUpgrade python-teventUpgrade openchange-devel-docsUpgrade samba4-pythonUpgrade ipa-pythonUpgrade samba4-commonUpgrade openchange-clientUpgrade libtalloc-develUpgrade samba-swatUpgrade samba3x-clientUpgrade libtevent-develUpgrade ctdbUpgrade libtdbUpgrade samba4-dcUpgrade ipa-server-dnsUpgrade samba3xUpgrade samba-winbind-develUpgrade libldb-develUpgrade samba-winbind-modulesUpgrade samba4-winbind-krb5-locatorUpgrade tdb-toolsUpgrade samba3x-domainjoin-guiUpgrade samba-docUpgrade ipa-admintoolsUpgrade samba-client-libsUpgrade libtallocUpgrade libsmbclientUpgrade python-tdbUpgrade ctdb-testsUpgrade samba3x-docUpgrade libwbclientUpgrade samba4-libsUpgrade sambaUpgrade pyldb-develUpgrade samba-dcUpgrade ipa-server-selinuxUpgrade openchange-develUpgrade samba-pythonUpgrade samba4-testUpgrade samba-pidlUpgrade libwbclient-develUpgrade pytalloc-develUpgrade samba-winbind | Apr 24, 2016 | Apr 24, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 12, 2016 |
| Samba | — | Upgrade to Samba version 4.3.8Upgrade to Samba version 4.4.2Upgrade to Samba version 4.2.11 | Apr 12, 2016 | Apr 12, 2016 |
| Suse | — | Upgrade libtdb1-x86Upgrade samba-winbind-32bitUpgrade libdcerpc-develUpgrade libtdb1-32bitUpgrade libsmbldap-develUpgrade libsmbclient-raw-develUpgrade samba-winbindUpgrade libndr-develUpgrade libnetapi0Upgrade libdcerpc-atsvc0Upgrade libndr0Upgrade samba-core-develUpgrade libndr1-32bitUpgrade libndr-krb5pac-develUpgrade libsamba-passdb0-32bitUpgrade libtevent-util0-32bitUpgrade libndr1Upgrade samba-winbind-x86Upgrade libsmbconf0Upgrade libtevent-develUpgrade samba-dsdb-modulesUpgrade libsmbsharemodes0Upgrade libwbclient0-x86Upgrade libsmbldap2-32bitUpgrade samba-cephUpgrade sambaUpgrade libregistry-develUpgrade samba-python3Upgrade libndr-nbt0-32bitUpgrade samba-libs-python3Upgrade libtevent0-x86Upgrade libldb-develUpgrade libwbclient-develUpgrade libdcerpc-binding0Upgrade samba-pythonUpgrade libsamba-hostconfig-develUpgrade libtalloc-develUpgrade samba-docUpgrade libndr-krb5pac0Upgrade libsamdb0Upgrade libsmbconf0-32bitUpgrade libtalloc2-x86Upgrade libtalloc2Upgrade libtevent0Upgrade libndr-nbt0Upgrade libsmbclient-raw0-32bitUpgrade libwbclient0-32bitUpgrade libsamba-util-develUpgrade libsamba-hostconfig0-32bitUpgrade libndr-standard0-32bitUpgrade samba-libs-python3-32bitUpgrade samba-32bitUpgrade libsamba-errors0Upgrade libsamba-policy0Upgrade samba-x86Upgrade libdcerpc-samr0Upgrade libgensec0-32bitUpgrade libgensec-develUpgrade libldb1Upgrade libsamdb-develUpgrade libsamba-passdb0Upgrade libndr-krb5pac0-32bitUpgrade libsamba-credentials0-32bitUpgrade libsamdb0-32bitUpgrade libsamba-util0Upgrade libsmbclient0Upgrade samba-client-x86Upgrade libdcerpc-atsvc-develUpgrade libsmbldap0-32bitUpgrade libtdb-develUpgrade libwbclient0Upgrade libndr-standard0Upgrade libsmbclient0-x86Upgrade libsamba-passdb-develUpgrade libndr-standard-develUpgrade samba-test-develUpgrade libsamba-policy0-python3Upgrade libdcerpc0-32bitUpgrade libsamba-policy-python3-develUpgrade samba-libs-32bitUpgrade libnetapi-develUpgrade libsamba-hostconfig0Upgrade samba-testUpgrade libtevent0-32bitUpgrade libnetapi0-32bitUpgrade samba-krb-printingUpgrade libsmbclient-raw0Upgrade libsamba-credentials0Upgrade samba-clientUpgrade libsmbclient0-32bitUpgrade libsamba-policy-develUpgrade samba-libsUpgrade samba-client-32bitUpgrade libtevent-util-develUpgrade libsmbldap2Upgrade libdcerpc-samr-develUpgrade libgensec0Upgrade libregistry0Upgrade libdcerpc0Upgrade samba-kdcUpgrade libsamba-credentials-develUpgrade ctdb-develUpgrade ctdbUpgrade libdcerpc-binding0-32bitUpgrade libtevent-util0Upgrade libsmbclient-develUpgrade libsmbldap0Upgrade libsamba-util0-32bitUpgrade libsamba-errors-develUpgrade libtdb1Upgrade libtalloc2-32bitUpgrade libndr0-32bitUpgrade libsmbconf-develUpgrade libsamba-errors0-32bitUpgrade ldapsmbUpgrade libsmbsharemodes-develUpgrade samba-develUpgrade libndr-nbt-devel | Apr 13, 2016 | Apr 13, 2016 |
| Ubuntu | — | Upgrade samba | Apr 24, 2016 | Apr 24, 2016 |
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