juniper junos 不可达退出条件的循环(无限循环)
CVE编号
CVE-2021-31363利用情况
暂无补丁情况
N/A披露时间
2021-10-20漏洞描述
In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause high load on RPD which in turn may lead to routing protocol flaps. If a system with sensor-based-stats enabled receives a specific LDP FEC this can lead to the above condition. Continued receipted of such an LDP FEC will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 version 19.2R2 and later versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R2-S3-EVO; 20.3 versions prior to 20.3R1-S2-EVO.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 |
|
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https://kb.juniper.net/JSA11225 |
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 | 19.2 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos | 19.3 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos | 19.4 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos | 20.1 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos | 20.2 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos | 20.3 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos_os_evolved | 20.1 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos_os_evolved | 20.2 | - | |||||
运行在以下环境 | |||||||||
系统 | juniper | junos_os_evolved | 20.3 | - | |||||
- 攻击路径 相邻
- 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
CWE-ID | 漏洞类型 |
CWE-835 | 不可达退出条件的循环(无限循环) |
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