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Mandriva Linux Security Advisory 2010-142

Posted Jul 28, 2010

Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-142 - 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. OpenLDAP 2.4.22 allows remote attackers to cause a denial of service via a modrdn call with a zero-length RDN destination string, which is not properly handled by the smr_normalize function and triggers a NULL pointer dereference in the IA5StringNormalize function in schema_init.c, as demonstrated using the Codenomicon LDAPv3 test suite.

tags | advisory, remote, denial of service, arbitrary

systems | linux, mandriva

advisories | CVE-2010-0211, CVE-2010-0212

SHA-256 | da58b230384d632c52553a0dc4b5256eeaf3ce762c74c6ad7d8fb67893b6ff42

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