Bug 202691

Needed for FC6

+++ This bug was initially created as a clone of Bug #197278 +++

OpenLDAP Denial of Service

A denial of service bug was found in the way OpenLDAP processes
certain messages.  It is possible for an unauthenticated remote
attacker to crash the OpenLDAP slapd server.

The original advisories are here:

http://labs.musecurity.com/advisories/MU-200606-02.txt
http://lists.apple.com/archives/security-announce/2006/Jun/msg00000.html

This issue also affects FC4

-- Additional comment from mjc on 2006-08-15 10:39 EST --

Mu Security reported a denial-of-service vulnerability in Mac OS X's
OpenLDAP slapd.  The issue was caused by assertions in the message
processing code--- some "default:" labels were handled with "assert()".
This is the kind of thing:

servers/slapd/connection.c
   1087         case LDAP_REQ_EXTENDED:
   1088                 INCR_OP(num_ops_initiated_, SLAP_OP_EXTENDED);
   1089                 rc = do_extended( op, &rs );
   1090                 break;
   1091
   1092         default:
   1093                 /* not reachable */
   1094                 assert( 0 );
   1095         }
   1096
   1097 operations_error:


Affected versions include at least 2.2.19 and 2.3.24.