CVE:CVE-2020-1638
CNNVD:CNNVD-202004-530
Juniper Networks Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。Junos OS Evolved是Junos OS的升级版。
Juniper Networks Junos OS和Junos OS Evolved中存在安全漏洞。攻击者可通过连续发送IPv4数据包利用该漏洞造成FPC崩溃，导致拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS 19.2版本，19.3版本，19.4版本；Junos OS Evolved 19.2-EVO版本，19.3-EVO版本，19.4-EVO版本。
solution:Upgrade juniper junos to a higher version than 19.2,19.2:r1,19.2:r1-s1,19.2:r1-s2,19.2:r1-s3,19.3:r1,19.3:r1-s1,19.3:r2,19.3:r2-s1,19.4:r1,and avoid the version 19.2,19.2:r1,19.2:r1-s1,19.2:r1-s2,19.2:r1-s3,19.3:r1,19.3:r1-s1,19.3:r2,19.3:r2-s1,19.4:r1; Upgrade juniper junos_os_evolved to a higher version than 19.2:r1,19.3:r2,19.4:r1,and avoid the version 19.2:r1,19.3:r2,19.4:r1