OpenLDAP is an open source suite of LDAP (Lightweight Directory AccessProtocol) applications and development tools.A flaw was found in the way OpenLDAP handled authentication failures beingpassed from an OpenLDAP slave to the master. If OpenLDAP was configuredwith a chain overlay and it forwarded authentication failures, OpenLDAPwould bind to the directory as an anonymous user and return success, ratherthan return failure on the authenticated bind. This could allow a user on asystem that uses LDAP for authentication to log into a directory-basedaccount without knowing the password. (CVE-2011-1024)This update also fixes the following bug:Users of OpenLDAP should upgrade to these updated packages, which containbackported patches to resolve these issues. After installing this update,the OpenLDAP daemons will be restarted automatically.