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TI-2010-00203 Aliases CVE-2010-0211GHSA-m9h3-f3g9-fqrf

The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return…

Priority HIGH 65CWE-252Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

The slap_modrdn2mods function in modrdn.c in OpenLDAP 2.4.22 does not check the return value of a call to the smr_normalize function, which allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a modrdn call with an RDN string containing invalid UTF-8 sequences, which triggers a free of an invalid, uninitialized pointer in the slap_mods_free function, as demonstrated using the Codenomicon LDAPv3 test suite.

Why it matters now

EPSS 0.28472 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 6

CPEVersionsRoleVendor
cpe:2.3:a:openldap:openldap:2.4.22:*:*:*:*:*:*:*2.4.22Vulnerableopenldap
cpe:2.3:o:vmware:esxi:4.0:*:*:*:*:*:*:*4.0VulnerableVMware
cpe:2.3:o:vmware:esxi:4.1:*:*:*:*:*:*:*4.1VulnerableVMware
cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:*11.0VulnerableopenSUSE
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*10.6.0 to before 10.6.5VulnerableApple
cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:*10.6.0 to before 10.6.5VulnerableApple
  • cpe:2.3:a:openldap:openldap:2.4.22:*:*:*:*:*:*:* Versions 2.4.22 Vulnerable ·openldap
  • cpe:2.3:o:vmware:esxi:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·VMware
  • cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·openSUSE
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.6.0 to before 10.6.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:* Versions 10.6.0 to before 10.6.5 Vulnerable ·Apple

Remediation

Red Hat 2 advisories

  • 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-2010:0542 Released 2010-07-20 · Red Hat rating Moderate
    openldap security update
    • Red Hat Enterprise Linux (v. 5 server) compat-openldap-2.3.43_2.2.29-12.el5_5.1, compat-openldap-2.3.43_2.2.29-12.el5_5.1.i386, compat-openldap-2.3.43_2.2.29-12.el5_5.1.ia64 +25
    • Red Hat Enterprise Linux Desktop (v. 5 client) compat-openldap-2.3.43_2.2.29-12.el5_5.1, compat-openldap-2.3.43_2.2.29-12.el5_5.1.i386, openldap-2.3.43-12.el5_5.1 +3
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) openldap-2.3.43-12.el5_5.1, openldap-devel-2.3.43-12.el5_5.1, openldap-devel-2.3.43-12.el5_5.1.i386 +6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2010:0542
Red Hat Enterprise Linux AS version 4Fixed RHSA-2010:0543
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2010:0542
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2010:0542
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
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2010-0211
  2. 2026-10-03 Alias added: GHSA-m9h3-f3g9-fqrf

References

Exploit 1

Advisory 9

Other 2

Sources

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