CVE-2021-34713 (CNNVD-202109-384)
中文标题:
Cisco IOS XR 安全漏洞
英文标题:
Cisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco IOS XR是美国思科(Cisco)公司的一套为其网络设备开发的操作系统。 Cisco IOS XR存在安全漏洞,该漏洞源于在路由器上运行的Cisco IOS XR软件的第二层代码存在漏洞,此漏洞是由于对特定以太网帧的错误处理导致旋转循环,从而使网络处理器无响应。这可能允许未经认证的相邻攻击者可利用该漏洞导致受影响的线路卡重新启动。
英文描述:
A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An attacker could exploit this vulnerability by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| Cisco | Cisco IOS XR Software | n/a | - | - |
cpe:2.3:a:cisco:cisco_ios_xr_software:n_a:*:*:*:*:*:*:*
|
| cisco | ios_xr | * | - | - |
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
参考链接
cve.org
CVSS评分详情
3.1 (cna)
HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2021-34713 |
2025-11-11 15:21:00 | 2025-11-11 07:36:55 |
| NVD | nvd_CVE-2021-34713 |
2025-11-11 14:57:42 | 2025-11-11 07:45:13 |
| CNNVD | cnnvd_CNNVD-202109-384 |
2025-11-11 15:10:43 | 2025-11-11 07:56:55 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 其他
- cnnvd_id: 未提取 -> CNNVD-202109-384
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']