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TI-2015-06267 Aliases CVE-2015-7540GHSA-7m2w-hp2f-cmqp

The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check…

Priority MEDIUM 43CWE-399Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

Summary

The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful ASN.1 memory allocation, which allows remote attackers to cause a denial of service (memory consumption and daemon crash) via crafted packets.

Why it matters now

EPSS 0.07116 94th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 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 · 7

CPEVersionsRoleVendor
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*4.0.0 to before 4.1.22VulnerableSamba
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*15.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*15.10VulnerableCanonical
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.1.22 Vulnerable ·Samba
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* Versions 15.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

Red Hat 2 advisories

  • RHSA-2016:0015 Released 2016-01-08 · Red Hat rating Moderate
    samba security update
    • Red Hat Gluster 3 Samba on RHEL-6 libsmbclient-4.1.17-16.el6rhs, libsmbclient-devel-4.1.17-16.el6rhs, libwbclient-4.1.17-16.el6rhs +18
  • RHSA-2016:0010 Released 2016-01-07 · Red Hat rating Moderate
    samba4 security update
    • Red Hat Enterprise Linux Desktop (v. 6) samba4-4.0.0-67.el6_7.rc4, samba4-client-4.0.0-67.el6_7.rc4, samba4-common-4.0.0-67.el6_7.rc4 +11
    • Red Hat Enterprise Linux HPC Node (v. 6) samba4-4.0.0-67.el6_7.rc4, samba4-client-4.0.0-67.el6_7.rc4, samba4-common-4.0.0-67.el6_7.rc4 +11
    • Red Hat Enterprise Linux Server (v. 6) samba4-4.0.0-67.el6_7.rc4, samba4-client-4.0.0-67.el6_7.rc4, samba4-common-4.0.0-67.el6_7.rc4 +11
    • Red Hat Enterprise Linux Workstation (v. 6) samba4-4.0.0-67.el6_7.rc4, samba4-client-4.0.0-67.el6_7.rc4, samba4-common-4.0.0-67.el6_7.rc4 +11

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed—
Red Hat Enterprise Linux Client Optional (v. 7)Fixed—
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed—
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed—
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:0010
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2016:0010
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:0010
Red Hat Enterprise Linux Server (v. 7)Fixed—
Red Hat Enterprise Linux Server Optional (v. 7)Fixed—
Red Hat Enterprise Linux Server Resilient Storage (v. 7)Fixed—
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:0010
Red Hat Enterprise Linux Workstation (v. 7)Fixed—
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed—
Red Hat Gluster 3 Samba on RHEL-6Fixed RHSA-2016:0015
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-7540
  2. 2026-10-03 Alias added: GHSA-7m2w-hp2f-cmqp

References

Advisory 10

Other 2

Sources

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