juniper junos 未加控制的资源消耗（资源穷尽）
CVE编号
CVE-2021-0257利用情况
暂无补丁情况
N/A披露时间
2021-04-23漏洞描述
On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPCs (Modular Port Concentrators) where Integrated Routing and Bridging (IRB) interfaces are configured and mapped to a VPLS instance or a Bridge-Domain, certain Layer 2 network events at Customer Edge (CE) devices may cause memory leaks in the MPC of Provider Edge (PE) devices which can cause an out of memory condition and MPC restart. When this issue occurs, there will be temporary traffic interruption until the MPC is restored. An administrator can use the following CLI command to monitor the status of memory usage level of the MPC: user@device> show system resource-monitor fpc FPC Resource Usage Summary Free Heap Mem Watermark : 20 % Free NH Mem Watermark : 20 % Free Filter Mem Watermark : 20 % * - Watermark reached Slot # % Heap Free RTT Average RTT 1 87 PFE # % ENCAP mem Free % NH mem Free % FW mem Free 0 NA 88 99 1 NA 89 99 When the issue is occurring, the value of “% NH mem Free” will go down until the MPC restarts. This issue affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines), including MX-MPC1-3D, MX-MPC1E-3D, MX-MPC2-3D, MX-MPC2E-3D, MPC-3D-16XGE, and CHAS-MXxx Series MPCs. No other products or platforms are affected by this issue. This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R3-S3; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.2 versions prior to 20.2R1-S3, 20.2R2; 20.3 versions prior to 20.3R1-S1,, 20.3R2. This issue does not affect Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R3-S2; 18.1; 18.2 versions prior to 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R3-S1; 19.1; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2.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/JSA11148 |
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 | 17.3 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 17.4 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.2 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.3 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.4 | - | |||||
| 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 | 20.2 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 20.3 | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ex9200 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx10 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx10003 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx10008 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx10016 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx104 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx150 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx2008 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx2010 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx2020 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx204 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx240 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx40 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx480 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx5 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx80 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | mx960 | - | - | |||||
- 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-400 | 未加控制的资源消耗（资源穷尽） |
| CWE-401 | 在移除最后引用时对内存的释放不恰当（内存泄露） |
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