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CVE-2021-4154

Quick assessment

Affected
n/a kernel
Exploitation
Public or AI PoC available; prioritize validation
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 存在资源管理错误漏洞，该漏洞源于 Linux kernel 的 cgroup v1 解析器中 kernel/cgroup/cgroup-v1.c 中的 cgroup1_parse_param() 函数中的 use-after-free 错误。 本地用户可以通过 fsconfig syscall 参数执行任意代码，导致容器突破。该漏洞允许本地用户提升系统权限。

AI Predicted 7.8 Difficulty: Moderate EPSS 1.22% · P67
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I. Basic Information for CVE-2021-4154

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service 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
Linux kernel 资源管理错误漏洞
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 存在资源管理错误漏洞，该漏洞源于 Linux kernel 的 cgroup v1 解析器中 kernel/cgroup/cgroup-v1.c 中的 cgroup1_parse_param() 函数中的 use-after-free 错误。 本地用户可以通过 fsconfig syscall 参数执行任意代码，导致容器突破。该漏洞允许本地用户提升系统权限。
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 Fixed in kernel 5.14 rc2 -

II. Public POCs for CVE-2021-4154

# POC Description Source Link Shenlong Link
1 CVE-2021-4154 exploit https://github.com/Markakd/CVE-2021-4154 POC Details
2 CVE-2021-4154 https://github.com/veritas501/CVE-2021-4154 POC Details
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III. Intelligence Information for CVE-2021-4154

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Patches & Fixes for CVE-2021-4154 (1)

Vendor Advisories for CVE-2021-4154 (2)

Other References for CVE-2021-4154 (1)

Same Patch Batch · n/a · 2022-02-04 · 140 CVEs total

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CVE-2021-29398 Northstar Club Management 路径遍历漏洞
CVE-2021-29397 Northstar Club Management 安全漏洞
CVE-2021-29396 Northstar Club Management 授权问题漏洞
CVE-2021-29395 Northstar Club Management 路径遍历漏洞
CVE-2021-29394 Northstar Club Management 安全漏洞
CVE-2021-29393 Northstar Club Management 操作系统命令注入漏洞
CVE-2022-24249 GPAC 代码问题漏洞
CVE-2021-45429 YARA 缓冲区错误漏洞
CVE-2021-43635 Codex 跨站脚本漏洞
CVE-2022-24262 Voipmonitor 代码问题漏洞
CVE-2022-24260 VoIPmonitor SQL注入漏洞
CVE-2022-24259 Voipmonitor 授权问题漏洞
CVE-2021-44899 Micro Star International Center 安全漏洞

Showing top 20 of 140 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-4154

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