Author: delphij
Date: Tue Jan 14 19:17:20 2014
New Revision: 260642
URL: http://svnweb.freebsd.org/changeset/base/260642

Log:
  MFC r260636:
  
  Fix bsnmpd remote denial of service vulnerability.
  
  Reported by:  dinoex
  Submitted by: harti
  Security:     FreeBSD-SA-14:01.bsnmpd
  Security:     CVE-2014-1452

Modified:
  stable/9/contrib/bsnmp/lib/snmpagent.c
Directory Properties:
  stable/9/contrib/bsnmp/   (props changed)

Changes in other areas also in this revision:
Modified:
  stable/8/contrib/bsnmp/lib/snmpagent.c
Directory Properties:
  stable/8/contrib/bsnmp/   (props changed)

Modified: stable/9/contrib/bsnmp/lib/snmpagent.c
==============================================================================
--- stable/9/contrib/bsnmp/lib/snmpagent.c      Tue Jan 14 19:12:40 2014        
(r260641)
+++ stable/9/contrib/bsnmp/lib/snmpagent.c      Tue Jan 14 19:17:20 2014        
(r260642)
@@ -499,6 +499,11 @@ snmp_getbulk(struct snmp_pdu *pdu, struc
        for (cnt = 0; cnt < pdu->error_index; cnt++) {
                eomib = 1;
                for (i = non_rep; i < pdu->nbindings; i++) {
+
+                       if (resp->nbindings == SNMP_MAX_BINDINGS)
+                               /* PDU is full */
+                               goto done;
+
                        if (cnt == 0) 
                                result = do_getnext(&context, &pdu->bindings[i],
                                    &resp->bindings[resp->nbindings], pdu);
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