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CVE-2021-3543

Quick assessment

Affected
n/a kernel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nitro Enclaves是Amazon的一种新的Amazon Elastic Compute Cloud功能，允许创建独立的计算环境。 Red Hat, Inc. Nitro Enclaves内核驱动存在安全漏洞，该漏洞源于在Enclaves VMs强制封闭enclave文件描述符的方法中发现Nitro Enclaves内核驱动程序中的空指针取消引用缺陷。主机的本地用户可以利用这个缺陷使系统崩溃或升级他们在系统上的特权。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.30% · P23
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I. Basic Information for CVE-2021-3543

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat, Inc. Nitro Enclaves内核驱动 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nitro Enclaves是Amazon的一种新的Amazon Elastic Compute Cloud功能，允许创建独立的计算环境。 Red Hat, Inc. Nitro Enclaves内核驱动存在安全漏洞，该漏洞源于在Enclaves VMs强制封闭enclave文件描述符的方法中发现Nitro Enclaves内核驱动程序中的空指针取消引用缺陷。主机的本地用户可以利用这个缺陷使系统崩溃或升级他们在系统上的特权。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- kernel kernel 4.18.0 -

II. Public POCs for CVE-2021-3543

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III. Intelligence Information for CVE-2021-3543

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Vendor Advisories for CVE-2021-3543 (1)

Other References for CVE-2021-3543 (1)

Same Patch Batch · n/a · 2021-06-01 · 38 CVEs total

CVE-2021-23017 F5 NGINX Controller 安全漏洞
CVE-2020-26669 Fastspot BigTree 跨站脚本漏洞
CVE-2020-26668 Fastspot BigTree SQL注入漏洞
CVE-2021-31641 CHIYU科技BF-630W 跨站脚本漏洞
CVE-2021-3412 3Scale 安全漏洞
CVE-2021-3516 libxml2 资源管理错误漏洞
CVE-2021-20306 Red Hat BPMN Editor 安全漏洞
CVE-2021-3515 PostgreSQL 操作系统命令注入漏洞
CVE-2021-3495 Kiali-operator 安全漏洞
CVE-2020-27748 xdg-utils 安全漏洞
CVE-2020-26670 Fastspot BigTree 操作系统命令注入漏洞
CVE-2021-23021 F5 NGINX Controller 安全漏洞
CVE-2021-23020 NGINX控制器 安全特征问题漏洞
CVE-2021-23019 F5 NGINX Controller 安全漏洞
CVE-2021-23018 Nginx 控制器 安全漏洞
CVE-2021-27828 In4Velocity In4Suite ERP SQL注入漏洞
CVE-2021-25932 Opennms Group OpenNMS 跨站脚本漏洞
CVE-2021-31684 Github json-smart-v1 缓冲区错误漏洞
CVE-2021-32027 PostgreSQL 输入验证错误漏洞
CVE-2021-3424 Red Hat Single Sign-On 7安全漏洞

Showing top 20 of 38 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: kernel
Same vendor: n/a
Same weakness: CWE-416

V. Comments for CVE-2021-3543

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