It was discovered that remote attacker can cause net-snmp's snmpd to crash via specially crafted SNMP GetBulk requests, that triggers division by zero in the following code:
if (maxbulk <= 0 || maxbulk > maxresponses / r)
maxbulk = maxresponses / r;
This code has been added as part of the fix for CVE-2008-4309 (bug #469349). This problem never affected upstream net-snmp versions, thanks to following upstream commit from 2004:
This upstream change is part of net-snmp packages shipped in Red Hat Enterprise Linux 4 and later. Therefore this division by zero DoS only affects net-snmp in Red Hat Enterprise Linux 3.
This issue has been addressed in following products:
Red Hat Enterprise Linux 3
Via RHSA-2009:1124 https://rhn.redhat.com/errata/RHSA-2009-1124.html