CVE-2019-1977 (CNNVD-201908-2134)
中文标题:
Cisco Nexus 9000 Series Switches NX-OS ACI Software 安全漏洞
英文标题:
Cisco Nexus 9000 Series Fabric Switches ACI Mode Border Leaf Endpoint Learning Vulnerability
漏洞描述
中文描述:
Cisco Nexus 9000 Series Switches是美国思科（Cisco）公司的一款9000系列交换机。NX-OS ACI Software是运行在其中一套使用在Cisco网络设备中的操作系统。 Cisco Nexus 9000 Series Switches（运行在Application Centric Infrastructure模式下）中的NX-OS ACI Software 12.2(4M)之前版本、13.1(2u)之前版本和13.2(1l)之前版本存在安全漏洞，该漏洞。远程攻击者可利用该漏洞造成拒绝服务。
英文描述:
A vulnerability within the Endpoint Learning feature of Cisco Nexus 9000 Series Switches running in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an endpoint device in certain circumstances. The vulnerability is due to improper endpoint learning when packets are received on a specific port from outside the ACI fabric and destined to an endpoint located on a border leaf when Disable Remote Endpoint Learning has been enabled. This can result in a Remote (XR) entry being created for the impacted endpoint that will become stale if the endpoint migrates to a different port or leaf switch. This results in traffic not reaching the impacted endpoint until the Remote entry can be relearned by another mechanism.
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 Nexus 9000 Series Fabric Switches in ACI | - | < 12.2(4M) | - |
cpe:2.3:a:cisco:cisco_nexus_9000_series_fabric_switches_in_aci:*:*:*:*:*:*:*:*
|
| cisco | nx-os | 12.3\(1h\) | - | - |
cpe:2.3:o:cisco:nx-os:12.3\(1h\):*:*:*:*:*:*:*
|
| cisco | nx-os | 13.1\(2m\) | - | - |
cpe:2.3:o:cisco:nx-os:13.1\(2m\):*:*:*:*:*:*:*
|
| cisco | nx-os | 13.1\(2o\) | - | - |
cpe:2.3:o:cisco:nx-os:13.1\(2o\):*:*:*:*:*:*:*
|
| cisco | nx-os | 13.1\(2p\) | - | - |
cpe:2.3:o:cisco:nx-os:13.1\(2p\):*:*:*:*:*:*:*
|
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
3.0 (cna)
MEDIUMCVSS:3.0/AV:N/AC:H/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-2019-1977 |
2025-11-11 15:20:09 | 2025-11-11 07:35:41 |
| NVD | nvd_CVE-2019-1977 |
2025-11-11 14:56:26 | 2025-11-11 07:44:12 |
| CNNVD | cnnvd_CNNVD-201908-2134 |
2025-11-11 15:10:16 | 2025-11-11 07:54:45 |
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-201908-2134
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 5
- data_sources: ['cve'] -> ['cve', 'nvd']