Read the docs
TI-2017-08942 Aliases CVE-2017-12150GHSA-3747-3v6r-p947

It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did…

Priority MEDIUM 47CWE-300Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 19 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.

Why it matters now

EPSS 0.13065 96th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 19 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Sambasamba4.6.8; 4.5.14; 4.4.16; 4.7.0—No fix listedCNA
  • samba VendorSamba Affected 4.6.8; 4.5.14; 4.4.16; 4.7.0 Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*3.0.25 to before 4.4.16; 4.5.0 to before 4.5.14; 4.6.0 to before 4.6.8VulnerableSamba
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:redhat:gluster_storage:3.0:*:*:*:*:*:*:*3.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0Running onRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0Running onRed Hat
  • cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 3.0.25 to before 4.4.16; 4.5.0 to before 4.5.14; 4.6.0 to before 4.6.8 Vulnerable ·Samba
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:gluster_storage:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Running on ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Red Hat 4 advisories

  • RHSA-2017:2858 Released 2017-10-04 · Red Hat rating Moderate
    samba security update
    • Red Hat Gluster 3.3 Samba on RHEL-6 ctdb-4.6.3-6.el6rhs, ctdb-tests-4.6.3-6.el6rhs, libsmbclient-4.6.3-6.el6rhs +23
    • Red Hat Gluster 3.3 Samba on RHEL-7 ctdb-4.6.3-6.el7rhgs, ctdb-tests-4.6.3-6.el7rhgs, libsmbclient-4.6.3-6.el7rhgs +23
  • RHSA-2017:2789 Released 2017-09-21 · Red Hat rating Moderate
    samba security update
    • Red Hat Enterprise Linux Desktop (v. 6) libsmbclient-3.6.23-45.el6_9, samba-3.6.23-45.el6_9, samba-client-3.6.23-45.el6_9 +3
    • Red Hat Enterprise Linux Desktop Optional (v. 6) libsmbclient-devel-3.6.23-45.el6_9, samba-3.6.23-45.el6_9, samba-doc-3.6.23-45.el6_9 +5
    • Red Hat Enterprise Linux HPC Node (v. 6) samba-3.6.23-45.el6_9, samba-client-3.6.23-45.el6_9, samba-common-3.6.23-45.el6_9 +2
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) libsmbclient-3.6.23-45.el6_9, libsmbclient-devel-3.6.23-45.el6_9, samba-3.6.23-45.el6_9 +6
    • Red Hat Enterprise Linux Server (v. 6) libsmbclient-3.6.23-45.el6_9, libsmbclient-3.6.23-45.el6_9.ppc, samba-3.6.23-45.el6_9 +6
    • Red Hat Enterprise Linux Server Optional (v. 6) libsmbclient-devel-3.6.23-45.el6_9, libsmbclient-devel-3.6.23-45.el6_9.ppc, samba-doc-3.6.23-45.el6_9 +6
    • Red Hat Enterprise Linux Workstation (v. 6) libsmbclient-3.6.23-45.el6_9, samba-3.6.23-45.el6_9, samba-client-3.6.23-45.el6_9 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 6) libsmbclient-devel-3.6.23-45.el6_9, samba-doc-3.6.23-45.el6_9, samba-domainjoin-gui-3.6.23-45.el6_9 +4
  • RHSA-2017:2790 Released 2017-09-21 · Red Hat rating Moderate
    samba security update
    • Red Hat Enterprise Linux Client (v. 7) libsmbclient-4.6.2-11.el7_4, libwbclient-4.6.2-11.el7_4, samba-4.6.2-11.el7_4 +10
    • Red Hat Enterprise Linux Client Optional (v. 7) libsmbclient-devel-4.6.2-11.el7_4, libwbclient-devel-4.6.2-11.el7_4, samba-4.6.2-11.el7_4 +9
    • Red Hat Enterprise Linux ComputeNode (v. 7) libsmbclient-4.6.2-11.el7_4, libwbclient-4.6.2-11.el7_4, samba-4.6.2-11.el7_4 +9
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libsmbclient-devel-4.6.2-11.el7_4, libwbclient-devel-4.6.2-11.el7_4, samba-4.6.2-11.el7_4 +10
    • Red Hat Enterprise Linux Server (v. 7) libsmbclient-4.6.2-11.el7_4, libsmbclient-4.6.2-11.el7_4.ppc, libwbclient-4.6.2-11.el7_4 +16
    • Red Hat Enterprise Linux Server Optional (v. 7) libsmbclient-devel-4.6.2-11.el7_4, libsmbclient-devel-4.6.2-11.el7_4.ppc, libwbclient-devel-4.6.2-11.el7_4 +12
    • Red Hat Enterprise Linux Server Resilient Storage (v. 7) ctdb-4.6.2-11.el7_4, ctdb-tests-4.6.2-11.el7_4
    • Red Hat Enterprise Linux Workstation (v. 7) libsmbclient-4.6.2-11.el7_4, libwbclient-4.6.2-11.el7_4, samba-4.6.2-11.el7_4 +11
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libsmbclient-devel-4.6.2-11.el7_4, libwbclient-devel-4.6.2-11.el7_4, samba-dc-4.6.2-11.el7_4 +7
Show 1 more Red Hat advisories
  • RHSA-2017:2791 Released 2017-09-21 · Red Hat rating Moderate
    samba4 security update
    • Red Hat Enterprise Linux Desktop (v. 6) samba4-4.2.10-11.el6_9, samba4-client-4.2.10-11.el6_9, samba4-common-4.2.10-11.el6_9 +10
    • Red Hat Enterprise Linux HPC Node (v. 6) samba4-4.2.10-11.el6_9, samba4-client-4.2.10-11.el6_9, samba4-common-4.2.10-11.el6_9 +10
    • Red Hat Enterprise Linux Server (v. 6) samba4-4.2.10-11.el6_9, samba4-client-4.2.10-11.el6_9, samba4-common-4.2.10-11.el6_9 +10
    • Red Hat Enterprise Linux Workstation (v. 6) samba4-4.2.10-11.el6_9, samba4-client-4.2.10-11.el6_9, samba4-common-4.2.10-11.el6_9 +10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    samba — RHSA-2017:2790

    3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW

    Other records, highest priority first

    Show all 3 records → Advisory →
  • Advisory ·

    samba — RHSA-2017:2858

    3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW

    Other records, highest priority first

    Show all 3 records → Advisory →
Show 2 more groups

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2017:2789, RHSA-2017:2791
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2017:2789
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2017:2789, RHSA-2017:2791
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2017:2789
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:2789, RHSA-2017:2791
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2017:2789
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux Server Resilient Storage (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:2789, RHSA-2017:2791
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:2790
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2017:2789
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:2790
Red Hat Gluster 3.3 Samba on RHEL-6Fixed RHSA-2017:2858
Red Hat Gluster 3.3 Samba on RHEL-7Fixed RHSA-2017:2858

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12150
  2. 2026-10-03 Alias added: GHSA-3747-3v6r-p947

References

Patch 1

Advisory 9

  • TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2017-05139 Code injection in samba KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-00210 The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x… CVSS 2.0HIGH 10.0
  • TI-2003-00081 Buffer overflow in the SMB/CIFS packet fragment re-assembly code for SMB daemon (smbd) in… CVSS 2.0HIGH 10.0
  • TI-2003-00185 Buffer overflow in the call_trans2open function in trans2.c for Samba 2.2.x before… CVSS 2.0HIGH 10.0
  • TI-2007-02362 Multiple heap-based buffer overflows in the NDR parsing in smbd in Samba 3.0.0 through… CVSS 2.0HIGH 10.0
See all 215 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences