PRIOn knowledge basePRION:CVE-2010-0211Double free
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.
References
kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
secunia.com/advisories/40639
secunia.com/advisories/40677
secunia.com/advisories/40687
secunia.com/advisories/42787
security.gentoo.org/glsa/glsa-201406-36.xml
support.apple.com/kb/HT4435
www.openldap.org/its/index.cgi/Software%20Bugs?id=6570
www.redhat.com/support/errata/RHSA-2010-0542.html
www.redhat.com/support/errata/RHSA-2010-0543.html
www.securityfocus.com/archive/1/515545/100/0/threaded
www.securityfocus.com/bid/41770
www.securitytracker.com/id?1024221
www.vmware.com/security/advisories/VMSA-2011-0001.html
www.vupen.com/english/advisories/2010/1849
www.vupen.com/english/advisories/2010/1858
www.vupen.com/english/advisories/2011/0025
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