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TI-2017-10809 Aliases CVE-2017-14746GHSA-57pg-7qmc-wmf2

Use-after-free vulnerability in Samba 4.x before 4.7.3 allows remote attackers to execute…

Priority MEDIUM 54CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

Use-after-free vulnerability in Samba 4.x before 4.7.3 allows remote attackers to execute arbitrary code via a crafted SMB1 request.

Why it matters now

EPSS 0.09876 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*4.0.0 to before 4.5.0; 4.5.0 to before 4.5.15; 4.6.0 to before 4.6.11; 4.7.0 to before 4.7.3VulnerableSamba
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*17.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*17.10VulnerableCanonical
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: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:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.5.0; 4.5.0 to before 4.5.15; 4.6.0 to before 4.6.11; 4.7.0 to before 4.7.3 Vulnerable ·Samba
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:* Versions 17.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Versions 17.10 Vulnerable ·Canonical
  • 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
  • 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
Show 3 more CPE
CPEVersionsRoleVendor
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: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

Remediation

Red Hat 3 advisories

  • RHSA-2017:3278 Released 2017-11-29 · Red Hat rating Important
    samba4 security update
    • Red Hat Enterprise Linux Desktop (v. 6) samba4-4.2.10-12.el6_9, samba4-client-4.2.10-12.el6_9, samba4-common-4.2.10-12.el6_9 +10
    • Red Hat Enterprise Linux HPC Node (v. 6) samba4-4.2.10-12.el6_9, samba4-client-4.2.10-12.el6_9, samba4-common-4.2.10-12.el6_9 +10
    • Red Hat Enterprise Linux Server (v. 6) samba4-4.2.10-12.el6_9, samba4-client-4.2.10-12.el6_9, samba4-common-4.2.10-12.el6_9 +10
    • Red Hat Enterprise Linux Workstation (v. 6) samba4-4.2.10-12.el6_9, samba4-client-4.2.10-12.el6_9, samba4-common-4.2.10-12.el6_9 +10
  • RHSA-2017:3260 Released 2017-11-27 · Red Hat rating Important
    samba security update
    • Red Hat Enterprise Linux Client (v. 7) libsmbclient-4.6.2-12.el7_4, libwbclient-4.6.2-12.el7_4, samba-4.6.2-12.el7_4 +10
    • Red Hat Enterprise Linux Client Optional (v. 7) libsmbclient-devel-4.6.2-12.el7_4, libwbclient-devel-4.6.2-12.el7_4, samba-4.6.2-12.el7_4 +9
    • Red Hat Enterprise Linux ComputeNode (v. 7) libsmbclient-4.6.2-12.el7_4, libwbclient-4.6.2-12.el7_4, samba-4.6.2-12.el7_4 +9
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libsmbclient-devel-4.6.2-12.el7_4, libwbclient-devel-4.6.2-12.el7_4, samba-4.6.2-12.el7_4 +10
    • Red Hat Enterprise Linux Server (v. 7) libsmbclient-4.6.2-12.el7_4, libsmbclient-4.6.2-12.el7_4.ppc, libwbclient-4.6.2-12.el7_4 +16
    • Red Hat Enterprise Linux Server Optional (v. 7) libsmbclient-devel-4.6.2-12.el7_4, libsmbclient-devel-4.6.2-12.el7_4.ppc, libwbclient-devel-4.6.2-12.el7_4 +12
    • Red Hat Enterprise Linux Server Resilient Storage (v. 7) ctdb-4.6.2-12.el7_4, ctdb-tests-4.6.2-12.el7_4
    • Red Hat Enterprise Linux Workstation (v. 7) libsmbclient-4.6.2-12.el7_4, libwbclient-4.6.2-12.el7_4, samba-4.6.2-12.el7_4 +11
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libsmbclient-devel-4.6.2-12.el7_4, libwbclient-devel-4.6.2-12.el7_4, samba-dc-4.6.2-12.el7_4 +7
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) libsmbclient-4.6.2-12.el7_4, libwbclient-4.6.2-12.el7_4, samba-4.6.2-12.el7_4 +11
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) libsmbclient-devel-4.6.2-12.el7_4, libwbclient-devel-4.6.2-12.el7_4, samba-dc-4.6.2-12.el7_4 +7
  • RHSA-2017:3261 Released 2017-11-27 · Red Hat rating Important
    samba security update
    • Red Hat Gluster 3.3 Samba on RHEL-6 ctdb-4.6.3-9.el6rhs, ctdb-tests-4.6.3-9.el6rhs, libsmbclient-4.6.3-9.el6rhs +23
    • Red Hat Gluster 3.3 Samba on RHEL-7 ctdb-4.6.3-9.el7rhgs, ctdb-tests-4.6.3-9.el7rhgs, libsmbclient-4.6.3-9.el7rhgs +23

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2017:3278
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2017:3278
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:3278
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux Server Resilient Storage (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:3278
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2017:3260
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2017:3260
Red Hat Gluster 3.3 Samba on RHEL-6Fixed RHSA-2017:3261
Red Hat Gluster 3.3 Samba on RHEL-7Fixed RHSA-2017:3261
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-14746
  2. 2026-10-03 Alias added: GHSA-57pg-7qmc-wmf2

References

Advisory 9

Sources

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