CVE编号
CVE-2020-26070利用情况
暂无补丁情况
N/A披露时间
2020-11-12漏洞描述
A vulnerability in the ingress packet processing function of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource allocation when an affected device processes network traffic in software switching mode (punted). An attacker could exploit this vulnerability by sending specific streams of Layer 2 or Layer 3 protocol data units (PDUs) to an affected device. A successful exploit could cause the affected device to run out of buffer resources, which could make the device unable to process or forward traffic, resulting in a DoS condition. The device would need to be restarted to regain functionality.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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s... |
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 | cisco | ios_xr | * |
Up to (excluding) 6.7.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | cisco | ios_xr | * |
From (including) 7.1.0 |
Up to (excluding) 7.1.2 |
||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9000v | v2 | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9001 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9006 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9010 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9901 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9903 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9904 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9906 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9910 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9912 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | cisco | asr_9922 | - | - | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 已更改
- 用户交互 无
- 可用性 高
- 保密性 无
- 完整性 无
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