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CVE-2021-3600

Quick assessment

Affected
The Linux Kernel Organization linux
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，该漏洞源于Linux内核中的eBPF实现不是这样的执行div时正确跟踪32位寄存器的边界信息。

CVSS 7.8 · High EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-3600

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
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，该漏洞源于Linux内核中的eBPF实现不是这样的执行div时正确跟踪32位寄存器的边界信息。
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
The Linux Kernel Organization linux 0 ~ 5.11 -

II. Public POCs for CVE-2021-3600

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III. Intelligence Information for CVE-2021-3600

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Vendor Advisories for CVE-2021-3600 (2)

Other References for CVE-2021-3600 (1)

Same Patch Batch · The Linux Kernel Organization · 2024-01-08 · 6 CVEs total

CVE-2022-2585 5.3 MEDIUM Linux kernel 安全漏洞
CVE-2022-2586 5.3 MEDIUM Linux kernel 安全漏洞
CVE-2022-2588 5.3 MEDIUM Linux kernel 安全漏洞
CVE-2022-2602 5.3 MEDIUM Linux kernel 安全漏洞
CVE-2023-1032 4.7 MEDIUM Linux kernel 安全漏洞

IV. Related Vulnerabilities

Same product: linux
Same vendor: The Linux Kernel Organization

V. Comments for CVE-2021-3600

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