Description

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

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705

http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html

http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html

http://secunia.com/advisories/40639

http://secunia.com/advisories/40677

http://secunia.com/advisories/40687

http://secunia.com/advisories/42787

http://security.gentoo.org/glsa/glsa-201406-36.xml

http://support.apple.com/kb/HT4435

http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6570

http://www.redhat.com/support/errata/RHSA-2010-0542.html

http://www.redhat.com/support/errata/RHSA-2010-0543.html

http://www.securityfocus.com/archive/1/515545/100/0/threaded

http://www.securityfocus.com/bid/41770

http://www.securitytracker.com/id?1024221

http://www.vmware.com/security/advisories/VMSA-2011-0001.html

http://www.vupen.com/english/advisories/2010/1849

http://www.vupen.com/english/advisories/2010/1858

http://www.vupen.com/english/advisories/2011/0025

Details

Risk Information

CVSS v2