MS-MPC or MS-MIC crash when passing large fragmented traffic through an ALG

An MS-MPC or MS-MIC Service PIC may crash when large fragmented packets are passed through an Application Layer Gateway (ALG). Repeated crashes of the Service PC can result in an extended denial of service condition. The issue can be seen only if NAT or stateful-firewall rules are configured with ALGs enabled. This issue was caused by the code change for PR 1182910 in Junos OS 14.1X55-D30, 14.1X55-D35, 14.2R7, 15.1R5, and 16.1R2. No other versions of Junos OS and no other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS on MX platforms running: 14.1X55 from 14.1X55-D30 to releases prior to 14.1X55-D35; 14.2R from 14.2R7 to releases prior to 14.2R7-S4, 14.2R8; 15.1R from 15.1R5 to releases prior to 15.1R5-S2, 15.1R6; 16.1R from 16.1R2 to releases prior to 16.1R3-S2, 16.1R4.

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Juniper MX Series设备Junos OS 安全漏洞

Juniper MX Series是美国瞻博网络（Juniper Networks）公司的一款MX系列的路由器产品。Junos OS是使用在其中的一套操作系统。 Juniper MX Series设备中的Junos OS存在安全漏洞。远程攻击者可通过Application Layer Gateway (ALG)发送数据包片段利用该漏洞造成目标服务器崩溃。以下版本受到影响：Juniper Junos OS 14.1X55版本，14.2R版本，15.1R版本，16.1R版本。

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