Kerberos 4 KDC program improperly frees memory twice (aka "double-free"), which allows remote attackers to cause a denial of service.Referenceshttp://www.cert.org/advisories/CA-2000-11.htmlhttp://ciac.llnl.gov/ciac/bulletins/k-051.shtmlhttp://archives.neohapsis.com/archives/bugtraq/2000-06/0064.htmlhttp://web.mit.edu/kerberos/www/advisories/krb4kdc.txthttp://www.redhat.com/support/errata/RHSA-2000-031.htmlhttp://www.securityfocus.com/bid/1465
