CVE-2010-0211: Apple Mac OS X

Critical severity, CVSS 9.8. EPSS: 28.5% chance of exploitation in the next 30 days.

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.

Affected products

• Apple Mac OS X: from 10.6.0, before 10.6.5 (fixed in 10.6.5)
• Apple Mac OS X Server: from 10.6.0, before 10.6.5 (fixed in 10.6.5)
• Openldap Openldap: version 2.4.22 only
• Opensuse Opensuse: version 11.0 only
• VMware ESXi: version 4.0 only; version 4.1 only

Published 2010-07-28. Last modified 2026-06-16.