handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker (who has write access) to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
修复方式
yum update PackageName
是否受影响判断
判断方法：yum info PackageName 结果说明：版本小于修复版本，则受此漏洞影响，版本大于等于修复版本，则此漏洞已修复。