CVE-2022-0847 PoC — Linux kernel 安全漏洞

Source

https://github.com/CYB3RK1D/CVE-2022-0847-POC

Associated Vulnerability

Title:Linux kernel 安全漏洞 (CVE-2022-0847)
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，该漏洞源于新管道缓冲区结构的“flag”变量在 Linux 内核中的 copy_page_to_iter_pipe 和 push_pipe 函数中缺乏正确初始化。非特权本地用户利用该漏洞可以提升权限至root。以下产品和版本受到影响：Linux Kernel 5.8-5.16.11、5.8-5.15.25、5.8-5.10.102。

Description

dirtypipe

Readme

# CVE-2022-0847
CREDITS:

        vulnerability author: Max Kellermann <max.kellermann@ionos.com>
        
        max kellermann explanation: https://dirtypipe.cm4all.com/
        
RESOURCES:

    PAGE CACHE:   https://manybutfinite.com/post/page-cache-the-affair-between-memory-and-files/
    
    PIPE:   https://github.com/angrave/SystemProgramming/wiki/Pipes%2C-Part-1%3A-Introduction-to-pipes
            
            https://github.com/angrave/SystemProgramming/wiki/Pipes%2C-Part-2%3A-Pipe-programming-secrets
            
    SPLICE SYSCALL:   https://man7.org/linux/man-pages/man2/splice.2.html#:~:text=splice()%20moves%20data%20between,must%20refer%20to%20a%20pipe.

File Snapshot


 [4.0K]  /data/pocs/92d11e734f55c95ae82eda8742eb3f27d264d7c4
├── [1.1K]  dirty-|-pipe.c
└── [ 687]  README.md

0 directories, 2 files

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