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CVE-2021-4002

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.

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，本地用户可以利用此漏洞未经授权访问某些数据。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1003 · OS Credential Dumping
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I. Basic Information for CVE-2021-4002

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
清理环节不完整
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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，本地用户可以利用此漏洞未经授权访问某些数据。
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 affects kernel v3.6 and later through v5.15.5. -

II. Public POCs for CVE-2021-4002

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III. Intelligence Information for CVE-2021-4002

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Patches & Fixes for CVE-2021-4002 (2)

Vendor Advisories for CVE-2021-4002 (3)

Mailing List Discussions for CVE-2021-4002 (2)

Same Patch Batch · n/a · 2022-03-03 · 37 CVEs total

CVE-2021-45819 6.4 MEDIUM Wordline HIDCCEMonitorSVC 代码问题漏洞
CVE-2021-3620 Red Hat Ansible 安全漏洞
CVE-2022-25138 Axelor Open Suite 跨站脚本漏洞
CVE-2022-26127 FRRouting FRR 缓冲区错误漏洞
CVE-2022-26128 FRRouting FRR 缓冲区错误漏洞
CVE-2022-26129 FRRouting FRR 缓冲区错误漏洞
CVE-2022-23898 MingSoft Mcms SQL注入漏洞
CVE-2022-23899 MingSoft Mcms SQL注入漏洞
CVE-2022-25125 MingSoft Mcms SQL注入漏洞
CVE-2022-22700 CyberArk Identity 安全特征问题漏洞
CVE-2021-43774 Fujifilm DocuCentre 加密问题漏洞
CVE-2021-3609 Linux kernel 竞争条件问题漏洞
CVE-2021-3602 Buildah 信息泄露漏洞
CVE-2021-3762 Clair 路径遍历漏洞
CVE-2022-23051 PeTeReport 跨站脚本漏洞
CVE-2022-23052 PeTeReport 跨站请求伪造漏洞
CVE-2022-25220 PeTeReport 跨站脚本漏洞
CVE-2022-22943 VMware Tools for Windows 代码问题漏洞
CVE-2021-3640 Linux kernel 资源管理错误漏洞
CVE-2022-24573 Element-IT HTTP Commander 跨站脚本漏洞

Showing top 20 of 37 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: kernel
Same vendor: n/a
Same weakness: CWE-459

V. Comments for CVE-2021-4002

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