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Fencer Intel
medium 5.9

CVE-2015-5370 json

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 properly implement the DCE-RPC layer, which allows rem…

published 2016-04-25 10 y ago modified 2026-06-17 4 mo ago also EUVD-2015-5326

cvss
5.9
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
19.1%
EPSS 19.1% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

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 properly implement the DCE-RPC layer, which allows remote attackers to perform protocol-downgrade attacks, cause a denial of service (application crash or CPU consumption), or possibly execute arbitrary code on a client system via unspecified vectors.

Patch / fix

  • samba Debian 14, Debian 13, Debian 12 2:4.3.7+dfsg-1

debian advisories DEBIAN-CVE-2015-5370

  • samba Ubuntu 14.04 LTS 2:4.3.8+dfsg-0ubuntu0.14.04.2
  • samba Ubuntu 16.04 LTS 2:4.3.8+dfsg-0ubuntu1

ubuntu advisories UBUNTU-CVE-2015-5370

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • samba storage 3.1 4.2.11-2.el6rhs
  • samba storage 3.1 4.2.11-2.el7rhgs
  • ctdb storage 3.1 4.2.11-2.el6rhs
  • ctdb storage 3.1 4.2.11-2.el7rhgs
  • pyldb storage 3.1 1.1.24-1.el6rhs
  • pyldb storage 3.1 1.1.24-1.el7rhgs
  • libldb storage 3.1 1.1.24-1.el6rhs
  • libldb storage 3.1 1.1.24-1.el7rhgs

red hat advisories RHSA-2016:0624RHSA-2016:0619RHSA-2016:0620RHSA-2016:0618RHSA-2016:0614RHSA-2016:0613

  • samba SLES for SAP 12, SLES 12, SLED 12 +2 more 4.2.4-18.17.1
  • samba SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +2 more 4.2.4-16.1
  • samba SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 3.6.3-76.1
  • samba SLES 11 SP2-LTSS 3.6.3-52.1

suse advisories SUSE-SU-2016:1028-1SUSE-SU-2016:1022-1SUSE-SU-2016:1024-1SUSE-SU-2016:1023-1

  • samba openSUSE Tumbleweed 4.5.0-1.1

opensuse advisories openSUSE-SU-2024:10069-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-5370 updated cvss 8.5

samba: crash in dcesrv_auth_bind_ack due to missing error check

  • Red Hat Enterprise Linux (v. 5 server) samba3x 3.6.23-12.el5_11, samba3x-swat 3.6.23-12.el5_11, samba3x-client 3.6.23-12.el5_11, samba3x-common 3.6.23-12.el5_11, samba3x-winbind 3.6.23-12.el5_11, samba3x-domainjoin-gui 3.6.23-12.el5_11
    fixed: vendor fix RHSA-2016:0613
  • Red Hat Enterprise Linux Client (v. 7) libtdb 1.3.8-1.el7_2, samba 4.2.10-6.el7_2, libldb 1.1.25-1.el7_2, ipa 4.2.0-15.el7_2.6.1, pytalloc 2.1.5-1.el7_2, libtalloc 2.1.5-1.el7_2, +15 more Red Hat Enterprise Linux Client Optional (v. 7) pyldb 1.1.25-1.el7_2, samba 4.2.10-6.el7_2, samba-dc 4.2.10-6.el7_2, tdb-tools 1.3.8-1.el7_2, ldb-tools 1.1.25-1.el7_2, python-tdb 1.3.8-1.el7_2, +13 more Red Hat Enterprise Linux ComputeNode (v. 7) libtdb 1.3.8-1.el7_2, samba 4.2.10-6.el7_2, libldb 1.1.25-1.el7_2, ipa 4.2.0-15.el7_2.6.1, pytalloc 2.1.5-1.el7_2, libtalloc 2.1.5-1.el7_2, +14 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.1) ipa 4.1.0-18.el7_1.6, libtdb 1.3.8-1.el7_1, samba 4.2.10-5.el7_1, libldb 1.1.25-1.el7_1, pytalloc 2.1.5-1.el7_1, libtalloc 2.1.5-1.el7_1, +14 more
    fixed: vendor fix RHSA-2016:0618
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) pyldb 1.1.25-1.el7_2, samba 4.2.10-6.el7_2, samba-dc 4.2.10-6.el7_2, tdb-tools 1.3.8-1.el7_2, ldb-tools 1.1.25-1.el7_2, python-tdb 1.3.8-1.el7_2, +12 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) pyldb 1.1.25-1.el7_1, samba 4.2.10-5.el7_1, samba-dc 4.2.10-5.el7_1, tdb-tools 1.3.8-1.el7_1, ldb-tools 1.1.25-1.el7_1, python-tdb 1.3.8-1.el7_1, +11 more
    fixed: vendor fix RHSA-2016:0618
  • Red Hat Enterprise Linux Desktop (v. 5 client) samba3x 3.6.23-12.el5_11, samba3x-swat 3.6.23-12.el5_11, samba3x-client 3.6.23-12.el5_11, samba3x-common 3.6.23-12.el5_11, samba3x-winbind 3.6.23-12.el5_11, samba3x-domainjoin-gui 3.6.23-12.el5_11
    fixed: vendor fix RHSA-2016:0613
  • Red Hat Enterprise Linux Desktop (v. 6) ipa 3.0.0-47.el6_7.2, libtdb 1.3.8-1.el6_7, pyldb 1.1.25-2.el6_7, libldb 1.1.25-2.el6_7, samba 3.6.23-30.el6_7, samba4 4.2.10-6.el6_7, +24 more Red Hat Enterprise Linux Desktop Optional (v. 6) samba 3.6.23-30.el6_7, tdb-tools 1.3.8-1.el6_7, ldb-tools 1.1.25-2.el6_7, samba-swat 3.6.23-30.el6_7, ipa-server 3.0.0-47.el6_7.2, openchange-client 1.0-7.el6_7, +6 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) samba3x 3.6.23-12.el5_11
    fixed: vendor fix RHSA-2016:0613
show 15 more
  • Red Hat Enterprise Linux HPC Node (v. 6) ipa 3.0.0-47.el6_7.2, libtdb 1.3.8-1.el6_7, pyldb 1.1.25-2.el6_7, libldb 1.1.25-2.el6_7, samba 3.6.23-30.el6_7, samba4 4.2.10-6.el6_7, +22 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.6) ipa 3.0.0-42.el6_6.1, pyldb 1.1.25-2.el6_6, libldb 1.1.25-2.el6_6, samba 3.6.23-30.el6_6, samba4 4.2.10-6.el6_6, samba4-dc 4.2.10-6.el6_6, +16 more
    fixed: vendor fix RHSA-2016:0620
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) samba 3.6.23-30.el6_7, tdb-tools 1.3.8-1.el6_7, ldb-tools 1.1.25-2.el6_7, samba-swat 3.6.23-30.el6_7, ipa-server 3.0.0-47.el6_7.2, libsmbclient 3.6.23-30.el6_7, +6 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.6) samba 3.6.23-30.el6_6, ldb-tools 1.1.25-2.el6_6, samba-swat 3.6.23-30.el6_6, ipa-server 3.0.0-42.el6_6.1, libsmbclient 3.6.23-30.el6_6, ipa-admintools 3.0.0-42.el6_6.1, +5 more
    fixed: vendor fix RHSA-2016:0620
  • Red Hat Enterprise Linux Long Life (v. 5.6 server) samba3x 3.6.23-12.el5_6, samba3x-swat 3.6.23-12.el5_6, samba3x-client 3.6.23-12.el5_6, samba3x-common 3.6.23-12.el5_6, samba3x-winbind 3.6.23-12.el5_6, samba3x-domainjoin-gui 3.6.23-12.el5_6 Red Hat Enterprise Linux Long Life (v. 5.9 server) samba3x 3.6.23-12.el5_9, samba3x-swat 3.6.23-12.el5_9, samba3x-client 3.6.23-12.el5_9, samba3x-common 3.6.23-12.el5_9, samba3x-winbind 3.6.23-12.el5_9, samba3x-domainjoin-gui 3.6.23-12.el5_9
    fixed: vendor fix RHSA-2016:0624
  • Red Hat Enterprise Linux Server (v. 6) ipa 3.0.0-47.el6_7.2, libtdb 1.3.8-1.el6_7, pyldb 1.1.25-2.el6_7, libldb 1.1.25-2.el6_7, samba 3.6.23-30.el6_7, samba4 4.2.10-6.el6_7, +28 more Red Hat Enterprise Linux Server (v. 7) libtdb 1.3.8-1.el7_2, pyldb 1.1.25-1.el7_2, samba 4.2.10-6.el7_2, libldb 1.1.25-1.el7_2, ipa 4.2.0-15.el7_2.6.1, pytalloc 2.1.5-1.el7_2, +23 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux Server AUS (v. 6.2) pyldb 1.1.25-2.el6_2, libldb 1.1.25-2.el6_2, samba 3.6.23-30.el6_2, sssd 1.5.1-66.el6_2.5, libipa_hbac 1.5.1-66.el6_2.5, libsmbclient 3.6.23-30.el6_2, +6 more Red Hat Enterprise Linux Server AUS (v. 6.4) ipa 3.0.0-26.el6_4.5, pyldb 1.1.25-2.el6_4, libldb 1.1.25-2.el6_4, samba 3.6.23-30.el6_4, samba4 4.2.10-6.el6_4, sssd 1.9.2-82.12.el6_4, +28 more Red Hat Enterprise Linux Server AUS (v. 6.5) ipa 3.0.0-37.el6_5.1, pyldb 1.1.25-2.el6_5, libldb 1.1.25-2.el6_5, samba 3.6.23-30.el6_5, samba4 4.2.10-6.el6_5, sssd 1.9.2-129.el6_5.7, +28 more Red Hat Enterprise Linux Server EUS (v. 6.6) ipa 3.0.0-42.el6_6.1, pyldb 1.1.25-2.el6_6, libldb 1.1.25-2.el6_6, samba 3.6.23-30.el6_6, samba4 4.2.10-6.el6_6, samba4-dc 4.2.10-6.el6_6, +21 more
    fixed: vendor fix RHSA-2016:0620
  • Red Hat Enterprise Linux Server EUS (v. 7.1) ipa 4.1.0-18.el7_1.6, libtdb 1.3.8-1.el7_1, pyldb 1.1.25-1.el7_1, samba 4.2.10-5.el7_1, libldb 1.1.25-1.el7_1, ipa 4.1.0-18.ael7b_1.6, +43 more
    fixed: vendor fix RHSA-2016:0618
  • Red Hat Enterprise Linux Server Optional (v. 6) openchange 1.0-7.el6_7, ldb-tools 1.1.25-2.el6_7, samba-swat 3.6.23-30.el6_7, openchange-client 1.0-7.el6_7, samba-glusterfs 3.6.23-30.el6_7, samba-domainjoin-gui 3.6.23-30.el6_7, +1 more Red Hat Enterprise Linux Server Optional (v. 7) pyldb 1.1.25-1.el7_2, openchange 2.0-10.el7_2, samba-dc 4.2.10-6.el7_2, tdb-tools 1.3.8-1.el7_2, ldb-tools 1.1.25-1.el7_2, python-tdb 1.3.8-1.el7_2, +9 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.2) libldb 1.1.25-2.el6_2, samba 3.6.23-30.el6_2, samba4 4.2.10-6.el6_2, sssd 1.5.1-66.el6_2.5, openchange 1.0-1.el6_2, ldb-tools 1.1.25-2.el6_2, +8 more Red Hat Enterprise Linux Server Optional AUS (v. 6.4) libldb 1.1.25-2.el6_4, samba 3.6.23-30.el6_4, openchange 1.0-5.el6_4, sssd 1.9.2-82.12.el6_4, ldb-tools 1.1.25-2.el6_4, samba-swat 3.6.23-30.el6_4, +4 more Red Hat Enterprise Linux Server Optional AUS (v. 6.5) libldb 1.1.25-2.el6_5, samba 3.6.23-30.el6_5, openchange 1.0-7.el6_5, sssd 1.9.2-129.el6_5.7, ldb-tools 1.1.25-2.el6_5, samba-swat 3.6.23-30.el6_5, +4 more Red Hat Enterprise Linux Server Optional EUS (v. 6.6) openchange 1.0-7.el6_6, ldb-tools 1.1.25-2.el6_6, samba-swat 3.6.23-30.el6_6, openchange-client 1.0-7.el6_6, samba-glusterfs 3.6.23-30.el6_6, samba-domainjoin-gui 3.6.23-30.el6_6, +1 more
    fixed: vendor fix RHSA-2016:0620
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.1) pyldb 1.1.25-1.el7_1, ctdb 4.2.10-5.ael7b_1, pyldb 1.1.25-1.ael7b_1, samba-dc 4.2.10-5.el7_1, tdb-tools 1.3.8-1.el7_1, ldb-tools 1.1.25-1.el7_1, +26 more
    fixed: vendor fix RHSA-2016:0618
  • Red Hat Enterprise Linux Server Resilient Storage (v. 7) ctdb 4.2.10-6.el7_2, ctdb-tests 4.2.10-6.el7_2
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Enterprise Linux Server Resilient Storage EUS (v. 7.1) ctdb 4.2.10-5.el7_1, ctdb-tests 4.2.10-5.el7_1
    fixed: vendor fix RHSA-2016:0618
  • Red Hat Enterprise Linux Workstation (v. 6) ipa 3.0.0-47.el6_7.2, libtdb 1.3.8-1.el6_7, pyldb 1.1.25-2.el6_7, libldb 1.1.25-2.el6_7, samba 3.6.23-30.el6_7, samba4 4.2.10-6.el6_7, +29 more Red Hat Enterprise Linux Workstation (v. 7) libtdb 1.3.8-1.el7_2, pyldb 1.1.25-1.el7_2, samba 4.2.10-6.el7_2, libldb 1.1.25-1.el7_2, ipa 4.2.0-15.el7_2.6.1, pytalloc 2.1.5-1.el7_2, +23 more Red Hat Enterprise Linux Workstation Optional (v. 6) ldb-tools 1.1.25-2.el6_7, samba-swat 3.6.23-30.el6_7, openchange-client 1.0-7.el6_7, samba-glusterfs 3.6.23-30.el6_7, samba-domainjoin-gui 3.6.23-30.el6_7, samba-winbind-krb5-locator 3.6.23-30.el6_7 Red Hat Enterprise Linux Workstation Optional (v. 7) samba-dc 4.2.10-6.el7_2, tdb-tools 1.3.8-1.el7_2, ldb-tools 1.1.25-1.el7_2, samba-pidl 4.2.10-6.el7_2, samba-test 4.2.10-6.el7_2, samba-dc-libs 4.2.10-6.el7_2, +4 more
    fixed: vendor fix RHSA-2016:0612
  • Red Hat Gluster 3 Samba on RHEL-6 ctdb 4.2.11-2.el6rhs, libtdb 1.3.8-1.el6rhs, samba 4.2.11-2.el6rhs, pytalloc 2.1.5-1.el6rhs, libtalloc 2.1.5-1.el6rhs, samba-dc 4.2.11-2.el6rhs, +23 more Red Hat Gluster 3 Samba on RHEL-7 ctdb 4.2.11-2.el7rhgs, libtdb 1.3.8-1.el7rhgs, pyldb 1.1.24-1.el7rhgs, samba 4.2.11-2.el7rhgs, libldb 1.1.24-1.el7rhgs, pytalloc 2.1.5-1.el7rhgs, +26 more Red Hat Gluster Storage Server 3.1 on RHEL-6 pyldb 1.1.24-1.el6rhs, libldb 1.1.24-1.el6rhs, ldb-tools 1.1.24-1.el6rhs
    fixed: vendor fix RHSA-2016:0614

2 more not affected in the full advisory

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

19.10% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.