发布日期：2022-01-18
更新日期：2022-04-18

受影响系统：

Juniper Networks Juniper Networks Junos OS 21.2
Juniper Networks Juniper Networks Junos OS 21.1
Juniper Networks Juniper Networks Junos OS 20.4
Juniper Networks Juniper Networks Junos OS 20.3
Juniper Networks Juniper Networks Junos OS 20.2
Juniper Networks Juniper Networks Junos OS 20.1
Juniper Networks Juniper Networks Junos OS 19.4
Juniper Networks Juniper Networks Junos OS 19.3
Juniper Networks Juniper Networks Junos OS 19.2
Juniper Networks Juniper Networks Junos OS 18.4
Juniper Networks Juniper Networks Junos OS Evolved < 20.4R3-S2-EVO
Juniper Networks Juniper Networks Junos OS Evolved 21.2
Juniper Networks Juniper Networks Junos OS Evolved 21.1

描述：

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CVE(CAN) ID: CVE-2022-22172

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。
Juniper Networks Junos OS 和Junos OS Evolved的第2层控制协议守护程序（l2cpd）中存在拒绝服务漏洞，该漏洞源于程序收到了特定的LLDP数据包。未经身份认证的攻击者可利用该漏洞导致内存泄露，并通过消耗内存导致拒绝服务。

<*链接：https://supportportal.juniper.net/s/article/2022-01-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-
*>

建议：

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厂商补丁：

Juniper Networks
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Juniper Networks已经为此发布了一个安全公告（JSA11278）以及相应补丁:
JSA11278：2022-01 Security Bulletin: Junos OS and Junos OS Evolved: An l2cpd memory leak can occur when specific LLDP packets are received leading to a DoS (CVE-2022-22172)
链接：https://supportportal.juniper.net/s/article/2022-01-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-

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