The LDAP component in Fedora Directory Server 1.0 allow remote attackers to cause a denial of service (crash) via a certain "bad BER sequence" that results in a free of uninitialized memory, as demonstrated using the ProtoVer LDAP test suite.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24795
http://www.securityfocus.com/bid/16677