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TI-2019-11110 Aliases CVE-2019-14907GHSA-qw9p-wf2h-j96q

Out-of-bounds read in Red Hat samba

Priority LOW 35CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).

Why it matters now

EPSS 0.03151 88th 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
Red Hatsamba4.11 to before 4.11.5; 4.10 to before 4.10.12; 4.9 to before 4.9.184.11.5, 4.10.12, 4.9.18Patch availableCNA
  • samba VendorRed Hat Affected 4.11 to before 4.11.5; 4.10 to before 4.10.12; 4.9 to before 4.9.18 Fixed in 4.11.5, 4.10.12, 4.9.18 Patch available CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*4.9.0 to before 4.9.18; 4.10.0 to before 4.10.12; 4.11.0 to before 4.11.5VulnerableSamba
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:*3.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*19.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*19.10VulnerableCanonical
  • cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.9.0 to before 4.9.18; 4.10.0 to before 4.10.12; 4.11.0 to before 4.11.5 Vulnerable ·Samba
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:synology:directory_server:-:*:*:*:*:*:*:*not specified by NVDVulnerableSynology
cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:*1.2VulnerableSynology
cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:*not specified by NVDVulnerableSynology
cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:*6.2VulnerableSynology
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:a:synology:directory_server:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Synology
  • cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:* Versions 1.2 Vulnerable ·Synology
  • cpe:2.3:a:synology:skynas:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Synology
  • cpe:2.3:o:synology:diskstation_manager:6.2:*:*:*:*:*:*:* Versions 6.2 Vulnerable ·Synology
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Red Hat 3 advisories

  • RHSA-2020:3981 Released 2020-09-29 · Red Hat rating Moderate
    samba security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) libsmbclient-4.10.16-5.el7, libwbclient-4.10.16-5.el7, samba-4.10.16-5.el7 +10
    • Red Hat Enterprise Linux Client Optional (v. 7) libsmbclient-devel-4.10.16-5.el7, libwbclient-devel-4.10.16-5.el7, samba-4.10.16-5.el7 +10
    • Red Hat Enterprise Linux ComputeNode (v. 7) libsmbclient-4.10.16-5.el7, libwbclient-4.10.16-5.el7, samba-4.10.16-5.el7 +9
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libsmbclient-devel-4.10.16-5.el7, libwbclient-devel-4.10.16-5.el7, samba-4.10.16-5.el7 +11
    • Red Hat Enterprise Linux Server (v. 7) libsmbclient-4.10.16-5.el7, libsmbclient-4.10.16-5.el7.ppc, libwbclient-4.10.16-5.el7 +17
    • Red Hat Enterprise Linux Server Optional (v. 7) libsmbclient-devel-4.10.16-5.el7, libsmbclient-devel-4.10.16-5.el7.ppc, libwbclient-devel-4.10.16-5.el7 +14
    • Red Hat Enterprise Linux Server Resilient Storage (v. 7) ctdb-4.10.16-5.el7, ctdb-tests-4.10.16-5.el7
    • Red Hat Enterprise Linux Workstation (v. 7) libsmbclient-4.10.16-5.el7, libwbclient-4.10.16-5.el7, samba-4.10.16-5.el7 +11
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libsmbclient-devel-4.10.16-5.el7, libwbclient-devel-4.10.16-5.el7, samba-dc-4.10.16-5.el7 +8
  • RHSA-2020:1878 Released 2020-04-28 · Red Hat rating Moderate
    samba security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) libsmbclient-devel-4.11.2-13.el8, libwbclient-devel-4.11.2-13.el8
    • Red Hat Enterprise Linux AppStream (v. 8) openchange-2.3-24.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) ctdb-4.11.2-13.el8, ctdb-tests-4.11.2-13.el8, libsmbclient-4.11.2-13.el8 +18
  • RHSA-2020:0943 Released 2020-03-23 · Red Hat rating Moderate
    samba security and bug fix update
    • Red Hat Gluster 3.5 Samba on RHEL-7 ctdb-4.11.6-104.el7rhgs, libsmbclient-4.11.6-104.el7rhgs, libsmbclient-devel-4.11.6-104.el7rhgs +29

Fixed in the same release

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

  • Advisory ·

    Red Hat samba — openSUSE-SU-2020:0122

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-13956 Use after free in Red Hat sambaPriority LOW 34
    • TI-2019-11106 Improper access control in [UNKNOWN] sambaPriority LOW 27
    Show all 3 records → Advisory →
  • Advisory ·

    Red Hat samba — FEDORA-2020-f92cd0e72b

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-13956 Use after free in Red Hat sambaPriority LOW 34
    • TI-2019-11106 Improper access control in [UNKNOWN] sambaPriority LOW 27
    Show all 3 records → Advisory →
Show 2 more groups
  • Advisory ·

    Red Hat samba — FEDORA-2020-6bd386c7eb

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-13956 Use after free in Red Hat sambaPriority LOW 34
    • TI-2019-11106 Improper access control in [UNKNOWN] sambaPriority LOW 27
    Show all 3 records → Advisory →
  • Advisory ·

    Red Hat samba — USN-4244-1

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-13956 Use after free in Red Hat sambaPriority LOW 34
    • TI-2019-11106 Improper access control in [UNKNOWN] sambaPriority LOW 27
    Show all 3 records → Advisory →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:1878
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:1878
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:1878
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux Server Resilient Storage (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:3981
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:3981
Red Hat Gluster 3.5 Samba on RHEL-7Fixed RHSA-2020:0943
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-14907
  2. 2026-10-03 Alias added: GHSA-qw9p-wf2h-j96q

References

Advisory 10

Other 1

  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
See all 1955 →

Sources

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