cisco ios_xe 加锁机制不恰当

CVE编号

CVE-2021-1622

利用情况

暂无

补丁情况

N/A

披露时间

2021-09-23
漏洞描述
A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause resource exhaustion, resulting in a denial of service (DoS) condition. This vulnerability is due to a deadlock condition in the code when processing COPS packets under certain conditions. An attacker could exploit this vulnerability by sending COPS packets with high burst rates to an affected device. A successful exploit could allow the attacker to cause the CPU to consume excessive resources, which prevents other control plane processes from obtaining resources and results in a DoS.
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。
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
应用 cisco ios_xe * Up to
(excluding)
16.12.1z1
运行在以下环境
应用 cisco ios_xe 17.3.1x -
运行在以下环境
硬件 cisco 7600_router - -
运行在以下环境
硬件 cisco asr_901-12c-f-d - -
运行在以下环境
硬件 cisco asr_901-12c-ft-d - -
运行在以下环境
硬件 cisco asr_901-4c-f-d - -
运行在以下环境
硬件 cisco asr_901-4c-ft-d - -
运行在以下环境
硬件 cisco asr_901-6cz-f-a - -
运行在以下环境
硬件 cisco asr_901-6cz-f-d - -
运行在以下环境
硬件 cisco asr_901-6cz-fs-a - -
运行在以下环境
硬件 cisco asr_901-6cz-fs-d - -
运行在以下环境
硬件 cisco asr_901-6cz-ft-a - -
运行在以下环境
硬件 cisco asr_901-6cz-ft-d - -
运行在以下环境
硬件 cisco cbr-8 - -
CVSS3评分
8.6
  • 攻击路径
    网络
  • 攻击复杂度
  • 权限要求
  • 影响范围
    已更改
  • 用户交互
  • 可用性
  • 保密性
  • 完整性
CWE-ID 漏洞类型
CWE-667 加锁机制不恰当
阿里云安全产品覆盖情况