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.

Threat-Mapped Scoring

Score: 1.9

Priority: P3 - Important (Medium)

• S9 – Sabotage of System/App
• S10 – Denial of Service (+0.1 bonus)

EPSS

Score: 0.42633
Percentile: 0.9733

CVSS Scoring

Mapped CWE(s)

• CWE-252 : Unchecked Return Value

Affected Products

• cpe:2.3:a:openldap:openldap:2.4.22:*:*:*:*:*:*:*
• cpe:2.3:o:vmware:esxi:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:vmware:esxi:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:*
• cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
• cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:*

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