CVE-2023-20049 (CNNVD-202303-666)

HIGH
中文标题:
Cisco ASR 9000 Series 缓冲区错误漏洞
英文标题:
Cisco IOS XR Software for ASR 9000 Series Routers Bidirectional Forwarding Detection Denial of Service Vulnerability
CVSS分数: 8.6
发布时间: 2023-03-09 00:00:00
漏洞类型: 缓冲区错误
状态: PUBLISHED
数据质量分数: 0.30
数据版本: v3
漏洞描述
中文描述:

Cisco IOS等都是美国思科（Cisco）公司的产品。Cisco IOS是一套为其网络设备开发的操作系统。Cisco ASR 900是一款900系列聚合服务路由器。Cisco ASR 9000是一款9000系列聚合服务路由器。 Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, ASR 9903 Compact High-Performance Routers存在安全漏洞，该漏洞源于Cisco IOS XR软件中的双向转发检测 (BFD) 硬件卸载功能中存在安全问题，允许远程攻击者进行线路卡重置，从而拒绝服务 (DoS)。

英文描述:

A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads.

CWE类型:
CWE-805 CWE-119
标签:
（暂无数据）
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:*:*:*:*:*:*:*:*
cisco ios_xr 7.7 - - cpe:2.3:o:cisco:ios_xr:7.7:*:*:*:*:*:*:*
解决方案
中文解决方案:
（暂无数据）
英文解决方案:
（暂无数据）
临时解决方案:
（暂无数据）
参考链接
20230308 Cisco IOS XR Software for ASR 9000 Series Routers Bidirectional Forwarding Detection Denial of Service Vulnerability vendor-advisory
cve.org
访问
CVSS评分详情
3.1 (cna)
HIGH
8.6
CVSS向量: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
机密性
NONE
完整性
NONE
可用性
HIGH
时间信息
发布时间:
2023-03-09 00:00:00
修改时间:
2024-10-28 16:33:14
创建时间:
2025-11-11 15:38:02
更新时间:
2025-11-11 15:57:53
利用信息
暂无可利用代码信息
数据源详情
数据源 记录ID 版本 提取时间
CVE cve_CVE-2023-20049 2025-11-11 15:21:47 2025-11-11 07:38:02
NVD nvd_CVE-2023-20049 2025-11-11 14:58:57 2025-11-11 07:46:12
CNNVD cnnvd_CNNVD-202303-666 2025-11-11 15:11:08 2025-11-11 07:57:53
版本与语言
当前版本: v3
主要语言: EN
支持语言:
EN ZH
安全公告
暂无安全公告信息
变更历史
v3 CNNVD
2025-11-11 15:57:53
vulnerability_type: 未提取 → 缓冲区错误; cnnvd_id: 未提取 → CNNVD-202303-666; data_sources: ['cve', 'nvd'] → ['cnnvd', 'cve', 'nvd']
查看详细变更
  • vulnerability_type: 未提取 -> 缓冲区错误
  • cnnvd_id: 未提取 -> CNNVD-202303-666
  • data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
v2 NVD
2025-11-11 15:46:12
affected_products_count: 1 → 3; data_sources: ['cve'] → ['cve', 'nvd']
查看详细变更
  • affected_products_count: 1 -> 3
  • data_sources: ['cve'] -> ['cve', 'nvd']