juniper junos 在移除最后引用时对内存的释放不恰当（内存泄露）
CVE编号
CVE-2021-31367利用情况
暂无补丁情况
N/A披露时间
2021-10-20漏洞描述
A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows an adjacent attacker to cause a Denial of Service (DoS) by sending genuine BGP flowspec packets which cause an FPC heap memory leak. Once having run out of memory the FPC will crash and restart along with a core dump. Continued receipted of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos Evolved is not affected.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/JSA11229 |
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 | |||||||||
| 系统 | juniper | junos | 19.1 | - | |||||
| 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 | 20.4 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 21.1 | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx1000 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx10001-36mr | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx10002 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx10003 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx10004 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx10008 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx10016 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx3000 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ptx5000 | - | - | |||||
- 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-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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