CVE-2021-3600
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I. Basic Information for CVE-2021-3600
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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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|---|
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- https://ubuntu.com/security/notices/USN-5003-1third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3600
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
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2021-3600
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