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TI-2009-03587 Aliases CVE-2009-3767GHSA-hc4m-gmh3-4vxp

libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when…

Priority LOW 26CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Spoofing
Confidentiality · integrity · availability
None · Partial · None
Fix status
Partial Red Hat: 8 fixed, 1 without a fix

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-295.

Summary

libraries/libldap/tls_o.c in OpenLDAP 2.2 and 2.4, and possibly other versions, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Why it matters now

EPSS 0.03258 88th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 8 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:*before 2.4.18Vulnerableopenldap
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*all versionsRunning onOpenSSL
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*before 10.6.2VulnerableApple
cpe:2.3:o:fedoraproject:fedora:11:*:*:*:*:*:*:*11VulnerableFedoraproject
  • cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:* Versions before 2.4.18 Vulnerable ·openldap
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions all versions Running on ·OpenSSL
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.6.2 Vulnerable ·Apple
  • cpe:2.3:o:fedoraproject:fedora:11:*:*:*:*:*:*:* Versions 11 Vulnerable ·Fedoraproject

Remediation

Red Hat 3 advisories

  • RHSA-2011:0896 Released 2011-06-22 · Red Hat rating Moderate
    JBoss Enterprise Web Server 1.0.2 update
    • Red Hat JBoss Web Server 1.0
  • RHSA-2010:0543 Released 2010-07-20 · Red Hat rating Moderate
    openldap security update
    • Red Hat Enterprise Linux AS version 4 compat-openldap-2.1.30-12.el4_8.3, compat-openldap-2.1.30-12.el4_8.3.i386, compat-openldap-2.1.30-12.el4_8.3.ia64 +21
    • Red Hat Enterprise Linux Desktop version 4 compat-openldap-2.1.30-12.el4_8.3, compat-openldap-2.1.30-12.el4_8.3.i386, openldap-2.2.13-12.el4_8.3 +9
    • Red Hat Enterprise Linux ES version 4 compat-openldap-2.1.30-12.el4_8.3, compat-openldap-2.1.30-12.el4_8.3.i386, compat-openldap-2.1.30-12.el4_8.3.ia64 +15
    • Red Hat Enterprise Linux WS version 4 compat-openldap-2.1.30-12.el4_8.3, compat-openldap-2.1.30-12.el4_8.3.i386, compat-openldap-2.1.30-12.el4_8.3.ia64 +15
  • RHSA-2010:0198 Released 2010-03-29 · Red Hat rating Moderate
    openldap security and bug fix update
    • Red Hat Enterprise Linux (v. 5 server) compat-openldap-2.3.43_2.2.29-12.el5, compat-openldap-2.3.43_2.2.29-12.el5.i386, compat-openldap-2.3.43_2.2.29-12.el5.ia64 +25
    • Red Hat Enterprise Linux Desktop (v. 5 client) compat-openldap-2.3.43_2.2.29-12.el5, compat-openldap-2.3.43_2.2.29-12.el5.i386, openldap-2.3.43-12.el5 +3
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) openldap-2.3.43-12.el5, openldap-devel-2.3.43-12.el5, openldap-devel-2.3.43-12.el5.i386 +6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2010:0198
Red Hat Enterprise Linux AS version 4Fixed RHSA-2010:0543
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2010:0198
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2010:0198
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2010:0543
Red Hat Enterprise Linux ES version 4Fixed RHSA-2010:0543
Red Hat Enterprise Linux WS version 4Fixed RHSA-2010:0543
Red Hat JBoss Web Server 1.0Fixed RHSA-2011:0896

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-3767
  2. 2026-10-03 Alias added: GHSA-hc4m-gmh3-4vxp

References

Patch 1

Advisory 12

Other 1

Sources

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