juniper junos 输入验证不恰当

CVE编号

CVE-2021-31376

利用情况

暂无

补丁情况

N/A

披露时间

2021-10-20

漏洞描述

An Improper Input Validation vulnerability in Packet Forwarding Engine manager (FXPC) process of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending specific DHCPv6 packets to the device and crashing the FXPC service. Continued receipt and processing of this specific packet will create a sustained Denial of Service (DoS) condition. This issue affects only the following platforms in ACX Series: ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096 devices. Other ACX platforms are not affected from this issue. This issue affects Juniper Networks Junos OS on ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096: 18.4 version 18.4R3-S7 and later versions prior to 18.4R3-S8. This issue does not affect: Juniper Networks Junos OS 18.4 versions prior to 18.4R3-S7 on ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://kb.juniper.net/JSA11241

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	系统	juniper	junos	18.4	-
	运行在以下环境
	硬件	juniper	acx1000	-	-
	运行在以下环境
	硬件	juniper	acx1100	-	-
	运行在以下环境
	硬件	juniper	acx2100	-	-
	运行在以下环境
	硬件	juniper	acx2200	-	-
	运行在以下环境
	硬件	juniper	acx4000	-	-
	运行在以下环境
	硬件	juniper	acx500	-	-
	运行在以下环境
	硬件	juniper	acx5048	-	-
	运行在以下环境
	硬件	juniper	acx5096	-	-

CVSS3评分 7.5

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 无
• 影响范围 未更改
• 用户交互 无
• 可用性 高
• 保密性 无
• 完整性 无

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-ID	漏洞类型
CWE-20	输入验证不恰当

Exp相关链接

- avd.aliyun.com