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medium 4.1

CVE-2017-12163 json

An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4…

published 8y ago modified 4mo ago also EUVD-2017-3740

cvss
4.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
7.6%
EPSS 7.6% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.

Patch / fix

  • samba samba 4.4.16, 4.5.14, 4.6.8
  • samba Debian 14, Debian 13, Debian 12 2:4.6.7+dfsg-2

debian advisories DEBIAN-CVE-2017-12163

  • samba Ubuntu 14.04 LTS 2:4.3.11+dfsg-0ubuntu0.14.04.12
  • samba Ubuntu 16.04 LTS 2:4.3.11+dfsg-0ubuntu0.16.04.11

ubuntu advisories UBUNTU-CVE-2017-12163

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 3.3 4.6.3-6.el6rhs
  • samba storage 3.3 4.6.3-6.el7rhgs
  • ctdb storage 3.3 4.6.3-6.el6rhs
  • ctdb storage 3.3 4.6.3-6.el7rhgs
  • samba-dc storage 3.3 4.6.3-6.el6rhs
  • samba-dc storage 3.3 4.6.3-6.el7rhgs
  • ctdb-tests storage 3.3 4.6.3-6.el6rhs
  • ctdb-tests storage 3.3 4.6.3-6.el7rhgs

red hat advisories RHSA-2017:2858RHSA-2017:2791RHSA-2017:2789RHSA-2017:2790

  • samba SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +3 more 4.6.9+git.59.c2cff9cea4c-3.17.1
  • samba SLES for SAP 12 SP2, SLES for SAP 12 SP1, SLES for Raspberry Pi 12 SP2 +5 more 4.2.4-28.21.1
  • samba SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 4.2.4-28.19.3
  • samba SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +3 more 3.6.3-94.5.1
  • samba SLES 12-LTSS, SLE High Availability Extension 12 4.2.4-18.44.2
  • samba SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 +2 more 4.6.7+git.51.327af8d0a11-3.12.1
  • samba SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +3 more 4.4.2-38.11.2

suse advisories SUSE-SU-2017:3155-1SUSE-SU-2017:2971-1SUSE-SU-2017:2726-1SUSE-SU-2017:2715-1SUSE-SU-2017:2704-1SUSE-SU-2017:2695-1

  • samba openSUSE Tumbleweed 4.14.6+git.182.2205d5224e3-1.1

opensuse advisories openSUSE-SU-2024:11365-1

  • samba Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 4.7.0-r0
  • samba Alpine 3.4 4.4.16-r0
  • samba Alpine 3.5 4.5.14-r0
  • samba Alpine 3.6 4.6.8-r0

alpine advisories ALPINE-CVE-2017-12163

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2017-12163 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2017-12163 updated cvss 4.1

Samba: Server memory information leak over SMB1

  • Red Hat Enterprise Linux 5 samba
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) samba 4.6.2-11.el7_4, samba-libs 4.6.2-11.el7_4, libwbclient 4.6.2-11.el7_4, libsmbclient 4.6.2-11.el7_4, samba-client 4.6.2-11.el7_4, samba-common 4.6.2-11.el7_4, +7 more Red Hat Enterprise Linux Client Optional (v. 7) samba 4.6.2-11.el7_4, samba-dc 4.6.2-11.el7_4, samba-pidl 4.6.2-11.el7_4, samba-test 4.6.2-11.el7_4, samba-python 4.6.2-11.el7_4, samba-dc-libs 4.6.2-11.el7_4, +3 more Red Hat Enterprise Linux ComputeNode (v. 7) samba 4.6.2-11.el7_4, samba-libs 4.6.2-11.el7_4, libwbclient 4.6.2-11.el7_4, libsmbclient 4.6.2-11.el7_4, samba-client 4.6.2-11.el7_4, samba-common 4.6.2-11.el7_4, +6 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) samba 4.6.2-11.el7_4, samba-dc 4.6.2-11.el7_4, samba-pidl 4.6.2-11.el7_4, samba-test 4.6.2-11.el7_4, samba-python 4.6.2-11.el7_4, samba-dc-libs 4.6.2-11.el7_4, +4 more
    fixed: vendor fix RHSA-2017:2790
  • Red Hat Enterprise Linux Desktop (v. 6) samba 3.6.23-45.el6_9, samba4 4.2.10-11.el6_9, samba4-dc 4.2.10-11.el6_9, samba4-libs 4.2.10-11.el6_9, samba4-pidl 4.2.10-11.el6_9, samba4-test 4.2.10-11.el6_9, +12 more Red Hat Enterprise Linux Desktop Optional (v. 6) samba 3.6.23-45.el6_9, samba-swat 3.6.23-45.el6_9, samba-glusterfs 3.6.23-45.el6_9, samba-domainjoin-gui 3.6.23-45.el6_9, samba-winbind-krb5-locator 3.6.23-45.el6_9 Red Hat Enterprise Linux HPC Node (v. 6) samba 3.6.23-45.el6_9, samba4 4.2.10-11.el6_9, samba4-dc 4.2.10-11.el6_9, samba4-libs 4.2.10-11.el6_9, samba4-pidl 4.2.10-11.el6_9, samba4-test 4.2.10-11.el6_9, +11 more Red Hat Enterprise Linux HPC Node Optional (v. 6) samba 3.6.23-45.el6_9, samba-swat 3.6.23-45.el6_9, libsmbclient 3.6.23-45.el6_9, samba-glusterfs 3.6.23-45.el6_9, samba-domainjoin-gui 3.6.23-45.el6_9, samba-winbind-krb5-locator 3.6.23-45.el6_9 Red Hat Enterprise Linux Server (v. 6) samba 3.6.23-45.el6_9, samba4 4.2.10-11.el6_9, samba4-dc 4.2.10-11.el6_9, samba4-libs 4.2.10-11.el6_9, samba4-pidl 4.2.10-11.el6_9, samba4-test 4.2.10-11.el6_9, +12 more
    fixed: vendor fix RHSA-2017:2789
  • Red Hat Enterprise Linux Server (v. 7) samba 4.6.2-11.el7_4, samba-libs 4.6.2-11.el7_4, libwbclient 4.6.2-11.el7_4, libsmbclient 4.6.2-11.el7_4, samba-client 4.6.2-11.el7_4, samba-common 4.6.2-11.el7_4, +8 more
    fixed: vendor fix RHSA-2017:2790
  • Red Hat Enterprise Linux Server Optional (v. 6) samba-swat 3.6.23-45.el6_9, samba-glusterfs 3.6.23-45.el6_9, samba-domainjoin-gui 3.6.23-45.el6_9, samba-winbind-krb5-locator 3.6.23-45.el6_9
    fixed: vendor fix RHSA-2017:2789
  • Red Hat Enterprise Linux Server Optional (v. 7) samba-dc 4.6.2-11.el7_4, samba-pidl 4.6.2-11.el7_4, samba-test 4.6.2-11.el7_4, samba-python 4.6.2-11.el7_4, samba-dc-libs 4.6.2-11.el7_4, samba-test-libs 4.6.2-11.el7_4, +2 more Red Hat Enterprise Linux Server Resilient Storage (v. 7) ctdb 4.6.2-11.el7_4, ctdb-tests 4.6.2-11.el7_4
    fixed: vendor fix RHSA-2017:2790
  • Red Hat Enterprise Linux Workstation (v. 6) samba 3.6.23-45.el6_9, samba4 4.2.10-11.el6_9, samba4-dc 4.2.10-11.el6_9, samba4-libs 4.2.10-11.el6_9, samba4-pidl 4.2.10-11.el6_9, samba4-test 4.2.10-11.el6_9, +12 more
    fixed: vendor fix RHSA-2017:2789
  • Red Hat Enterprise Linux Workstation (v. 7) samba 4.6.2-11.el7_4, samba-libs 4.6.2-11.el7_4, libwbclient 4.6.2-11.el7_4, libsmbclient 4.6.2-11.el7_4, samba-client 4.6.2-11.el7_4, samba-common 4.6.2-11.el7_4, +8 more
    fixed: vendor fix RHSA-2017:2790
show 3 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) samba-swat 3.6.23-45.el6_9, samba-glusterfs 3.6.23-45.el6_9, samba-domainjoin-gui 3.6.23-45.el6_9, samba-winbind-krb5-locator 3.6.23-45.el6_9
    fixed: vendor fix RHSA-2017:2789
  • Red Hat Enterprise Linux Workstation Optional (v. 7) samba-dc 4.6.2-11.el7_4, samba-pidl 4.6.2-11.el7_4, samba-test 4.6.2-11.el7_4, samba-dc-libs 4.6.2-11.el7_4, samba-test-libs 4.6.2-11.el7_4, samba-vfs-glusterfs 4.6.2-11.el7_4, +1 more
    fixed: vendor fix RHSA-2017:2790
  • Red Hat Gluster 3.3 Samba on RHEL-6 ctdb 4.6.3-6.el6rhs, samba 4.6.3-6.el6rhs, samba-dc 4.6.3-6.el6rhs, ctdb-tests 4.6.3-6.el6rhs, samba-libs 4.6.3-6.el6rhs, samba-pidl 4.6.3-6.el6rhs, +17 more Red Hat Gluster 3.3 Samba on RHEL-7 ctdb 4.6.3-6.el7rhgs, samba 4.6.3-6.el7rhgs, samba-dc 4.6.3-6.el7rhgs, ctdb-tests 4.6.3-6.el7rhgs, samba-libs 4.6.3-6.el7rhgs, samba-pidl 4.6.3-6.el7rhgs, +17 more
    fixed: vendor fix RHSA-2017:2858

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

7.59% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 4.1 CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
NVD 3.0 7.1 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
NVD 2.0 4.8 AV:A/AC:L/Au:N/C:P/I:P/A:N

Affected products

  • Samba Samba

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.