CVE-2015-5296

Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 88%
Affected Products (NVD)
VendorProductVersion
sambasamba
3.2.0 ≤
𝑥
< 4.1.22
sambasamba
4.2.0 ≤
𝑥
< 4.2.7
sambasamba
4.3.0 ≤
𝑥
< 4.3.3
debiandebian_linux
7.0
debiandebian_linux
8.0
canonicalubuntu_linux
12.04
canonicalubuntu_linux
14.04
canonicalubuntu_linux
15.04
canonicalubuntu_linux
15.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
samba
bookworm
2:4.17.12+dfsg-0+deb12u1
fixed
bookworm (security)
2:4.17.12+dfsg-0+deb12u1
fixed
bullseye
2:4.13.13+dfsg-1~deb11u6
fixed
bullseye (security)
2:4.13.13+dfsg-1~deb11u6
fixed
sid
2:4.21.1+dfsg-2
fixed
trixie
2:4.21.1+dfsg-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
samba
precise
Fixed 2:3.6.3-2ubuntu2.13
released
trusty
Fixed 2:4.1.6+dfsg-1ubuntu2.14.04.11
released
vivid
Fixed 2:4.1.13+dfsg-4ubuntu3.1
released
wily
Fixed 2:4.1.17+dfsg-4ubuntu3.1
released
xenial
Fixed 2:4.3.3+dfsg-1ubuntu1
released
yakkety
Fixed 2:4.3.3+dfsg-1ubuntu1
released
zesty
Fixed 2:4.3.3+dfsg-1ubuntu1
released
samba4
precise
ignored
trusty
dne
vivid
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
libdcerpc-binding0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libdcerpc-binding0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libdcerpc0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libdcerpc0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libgensec0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libgensec0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libldb1
suse enterprise sap 12
1.1.24-4.3.1
fixed
suse enterprise sap 12 SP1
1.1.24-4.1
fixed
suse enterprise server 12
1.1.24-4.3.1
fixed
suse enterprise server 12 SP1
1.1.24-4.1
fixed
libldb1-32bit
suse enterprise sap 12
1.1.24-4.3.1
fixed
suse enterprise sap 12 SP1
1.1.24-4.1
fixed
suse enterprise server 12
1.1.24-4.3.1
fixed
suse enterprise server 12 SP1
1.1.24-4.1
fixed
libndr-krb5pac0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libndr-krb5pac0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libndr-nbt0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libndr-nbt0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libndr-standard0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libndr-standard0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libndr0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libndr0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libnetapi0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libnetapi0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libpdb0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
libpdb0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
libregistry0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-credentials0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-credentials0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-hostconfig0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-hostconfig0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-passdb0
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-passdb0-32bit
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-util0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamba-util0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamdb0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsamdb0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbclient-raw0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbclient-raw0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbclient0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbclient0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbconf0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbconf0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbldap0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libsmbldap0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libtalloc2
suse enterprise sap 12
2.1.5-3.4.1
fixed
suse enterprise sap 12 SP1
2.1.5-4.1
fixed
suse enterprise server 12
2.1.5-3.4.1
fixed
suse enterprise server 12 SP1
2.1.5-4.1
fixed
libtalloc2-32bit
suse enterprise sap 12
2.1.5-3.4.1
fixed
suse enterprise sap 12 SP1
2.1.5-4.1
fixed
suse enterprise server 12
2.1.5-3.4.1
fixed
suse enterprise server 12 SP1
2.1.5-4.1
fixed
libtdb1
suse enterprise sap 12
1.3.8-2.3.1
fixed
suse enterprise sap 12 SP1
1.3.8-4.1
fixed
suse enterprise server 12
1.3.8-2.3.1
fixed
suse enterprise server 12 SP1
1.3.8-4.1
fixed
libtdb1-32bit
suse enterprise sap 12
1.3.8-2.3.1
fixed
suse enterprise sap 12 SP1
1.3.8-4.1
fixed
suse enterprise server 12
1.3.8-2.3.1
fixed
suse enterprise server 12 SP1
1.3.8-4.1
fixed
libtevent-util0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libtevent-util0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libtevent0
suse enterprise sap 12
0.9.26-3.3.1
fixed
suse enterprise sap 12 SP1
0.9.26-4.1
fixed
suse enterprise server 12
0.9.26-3.3.1
fixed
suse enterprise server 12 SP1
0.9.26-4.1
fixed
libtevent0-32bit
suse enterprise sap 12
0.9.26-3.3.1
fixed
suse enterprise sap 12 SP1
0.9.26-4.1
fixed
suse enterprise server 12
0.9.26-3.3.1
fixed
suse enterprise server 12 SP1
0.9.26-4.1
fixed
libwbclient0
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
libwbclient0-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
pytalloc
suse enterprise sap 12
2.1.5-3.4.1
fixed
suse enterprise sap 12 SP1
2.1.5-4.1
fixed
suse enterprise server 12
2.1.5-3.4.1
fixed
suse enterprise server 12 SP1
2.1.5-4.1
fixed
pytalloc-32bit
suse enterprise sap 12
2.1.5-3.4.1
fixed
suse enterprise sap 12 SP1
2.1.5-4.1
fixed
suse enterprise server 12
2.1.5-3.4.1
fixed
suse enterprise server 12 SP1
2.1.5-4.1
fixed
samba
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-client
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-client-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-doc
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-libs
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-libs-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-winbind
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
samba-winbind-32bit
suse enterprise sap 12
4.1.12-18.3.1
fixed
suse enterprise sap 12 SP1
4.2.4-6.1
fixed
suse enterprise server 12
4.1.12-18.3.1
fixed
suse enterprise server 12 SP1
4.2.4-6.1
fixed
tdb-tools
suse enterprise sap 12
1.3.8-2.3.1
fixed
suse enterprise sap 12 SP1
1.3.8-4.1
fixed
suse enterprise server 12
1.3.8-2.3.1
fixed
suse enterprise server 12 SP1
1.3.8-4.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
ctdb
RHEL 7
0:4.2.3-11.el7_2
fixed
ctdb-devel
RHEL 7
0:4.2.3-11.el7_2
fixed
ctdb-tests
RHEL 7
0:4.2.3-11.el7_2
fixed
libsmbclient
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
libsmbclient-devel
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
libwbclient
RHEL 7
0:4.2.3-11.el7_2
fixed
libwbclient-devel
RHEL 7
0:4.2.3-11.el7_2
fixed
samba
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-client
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-client-libs
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-common
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-common-libs
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-common-tools
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-dc
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-dc-libs
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-devel
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-doc
RHEL 6
0:3.6.23-24.el6_7
fixed
samba-domainjoin-gui
RHEL 6
0:3.6.23-24.el6_7
fixed
samba-glusterfs
RHEL 6
0:3.6.23-24.el6_7
fixed
samba-libs
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-pidl
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-python
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-swat
RHEL 6
0:3.6.23-24.el6_7
fixed
samba-test
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-test-devel
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-test-libs
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-vfs-glusterfs
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-winbind
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-winbind-clients
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-winbind-devel
RHEL 6
0:3.6.23-24.el6_7
fixed
samba-winbind-krb5-locator
RHEL 6
0:3.6.23-24.el6_7
fixed
RHEL 7
0:4.2.3-11.el7_2
fixed
samba-winbind-modules
RHEL 7
0:4.2.3-11.el7_2
fixed
samba4
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-client
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-common
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-dc
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-dc-libs
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-devel
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-libs
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-pidl
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-python
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-swat
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-test
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-winbind
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-winbind-clients
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
samba4-winbind-krb5-locator
RHEL 6
0:4.0.0-67.el6_7.rc4
fixed
References