CVE-2021-20322 (CNNVD-202111-2081)

HIGH
中文标题:
Linux kernel 安全特征问题漏洞
英文标题:
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Lin...
CVSS分数: 7.4
发布时间: 2022-02-18 17:50:45
漏洞类型: 授权问题
状态: PUBLISHED
数据质量分数: 0.30
数据版本: v3
漏洞描述
中文描述:

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞,攻击者可利用该漏洞可以绕过对Linux内核数据的访问限制,通过ICMP错误开放UDP端口,以读取敏感信息。

英文描述:

A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.

CWE类型:
CWE-330
标签:
(暂无数据)
受影响产品
厂商 产品 版本 版本范围 平台 CPE
linux linux_kernel * - - cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
fedoraproject fedora 34 - - cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
debian debian_linux 9.0 - - cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 - - cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
netapp active_iq_unified_manager - - - cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
netapp e-series_santricity_os_controller * - - cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*
netapp solidfire\,_enterprise_sds_\&_hci_storage_node - - - cpe:2.3:a:netapp:solidfire\,_enterprise_sds_\&_hci_storage_node:-:*:*:*:*:*:*:*
netapp solidfire_\&_hci_management_node - - - cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
netapp fas_baseboard_management_controller_firmware - - - cpe:2.3:o:netapp:fas_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
netapp aff_baseboard_management_controller_firmware - - - cpe:2.3:o:netapp:aff_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
netapp aff_a700s_firmware - - - cpe:2.3:o:netapp:aff_a700s_firmware:-:*:*:*:*:*:*:*
netapp h700s_firmware - - - cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
netapp h700e_firmware - - - cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
netapp h500s_firmware - - - cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
netapp h410s_firmware - - - cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
netapp h500e_firmware - - - cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
netapp h300e_firmware - - - cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
netapp h300s_firmware - - - cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
netapp hci_compute_node_firmware - - - cpe:2.3:o:netapp:hci_compute_node_firmware:-:*:*:*:*:*:*:*
oracle communications_cloud_native_core_binding_support_function 22.1.3 - - cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
oracle communications_cloud_native_core_network_exposure_function 22.1.1 - - cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
oracle communications_cloud_native_core_policy 22.2.0 - - cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*
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
无标题 x_refsource_MISC
cve.org
访问
无标题 x_refsource_MISC
cve.org
访问
无标题 x_refsource_MISC
cve.org
访问
无标题 x_refsource_MISC
cve.org
访问
无标题 x_refsource_MISC
cve.org
访问
[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update mailing-list
cve.org
访问
DSA-5096 vendor-advisory
cve.org
访问
无标题 x_refsource_MISC
cve.org
访问
无标题 x_refsource_CONFIRM
cve.org
访问
CVSS评分详情
7.4
HIGH
CVSS向量: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS版本: 3.1
机密性
HIGH
完整性
HIGH
可用性
NONE
时间信息
发布时间:
2022-02-18 17:50:45
修改时间:
2024-08-03 17:37:23
创建时间:
2025-11-11 15:36:35
更新时间:
2025-11-11 15:57:00
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-2021-20322 2025-11-11 15:20:46 2025-11-11 07:36:35
NVD nvd_CVE-2021-20322 2025-11-11 14:57:49 2025-11-11 07:44:57
CNNVD cnnvd_CNNVD-202111-2081 2025-11-11 15:10:46 2025-11-11 07:57:00
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 15:57:00
vulnerability_type: 未提取 → 授权问题; cnnvd_id: 未提取 → CNNVD-202111-2081; data_sources: ['cve', 'nvd'] → ['cnnvd', 'cve', 'nvd']
查看详细变更
  • vulnerability_type: 未提取 -> 授权问题
  • cnnvd_id: 未提取 -> CNNVD-202111-2081
  • data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
v2 NVD
2025-11-11 15:44:57
severity: SeverityLevel.MEDIUM → SeverityLevel.HIGH; cvss_score: 未提取 → 7.4; cvss_vector: NOT_EXTRACTED → CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N; cvss_version: NOT_EXTRACTED → 3.1; affected_products_count: 0 → 22; data_sources: ['cve'] → ['cve', 'nvd']
查看详细变更
  • severity: SeverityLevel.MEDIUM -> SeverityLevel.HIGH
  • cvss_score: 未提取 -> 7.4
  • cvss_vector: NOT_EXTRACTED -> CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  • cvss_version: NOT_EXTRACTED -> 3.1
  • affected_products_count: 0 -> 22
  • data_sources: ['cve'] -> ['cve', 'nvd']