juniper junos 使用共享资源的并发执行不恰当同步问题（竞争条件）
CVE编号
CVE-2020-1641利用情况
暂无补丁情况
N/A披露时间
2020-07-18漏洞描述
A Race Condition vulnerability in Juniper Networks Junos OS LLDP implementation allows an attacker to cause LLDP to crash leading to a Denial of Service (DoS). This issue occurs when crafted LLDP packets are received by the device from an adjacent device. Multiple LACP flaps will occur after LLDP crashes. An indicator of compromise is to evaluate log file details for lldp with RLIMIT. Intervention should occur before 85% threshold of used KB versus maximum available KB memory is reached. show log messages | match RLIMIT | match lldp | last 20 Matching statement is " /kernel: %KERNEL-[number]: Process ([pid #],lldpd) has exceeded 85% of RLIMIT_DATA: " with [] as variable data to evaluate for. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S15; 12.3X48 versions prior to 12.3X48-D95; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2; 17.2 versions prior to 17.2R1-S9, 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S6; 17.4 versions prior to 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R3-S5; 18.2 versions prior to 18.2R2-S7, 18.2R3; 18.2X75 versions prior to 18.2X75-D12, 18.2X75-D33, 18.2X75-D50, 18.2X75-D420; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2; 19.1 versions prior to 19.1R1-S4, 19.1R2.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/JSA11027 |
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 | 12.3 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 12.3x48 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 15.1 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 15.1x49 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 15.1x53 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 16.1 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 17.1 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 17.2 | - | |||||
| 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 | 18.1 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.2 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.2x75 | - | |||||
| 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 | 19.1 | - | |||||
- 攻击路径 相邻
- 攻击复杂度 高
- 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-362 | 使用共享资源的并发执行不恰当同步问题（竞争条件） |
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