MicroPython 1.23.0 VFS Unmount 堆溢出漏洞分析

关键信息 漏洞描述： 名称： MicroPython 1.23.0 VFS Unmount ExtMod/VFS.C MP_VFS_UNMOUNT HEAP-BASED OVERFLOW 版本： MicroPython 1.23.0 受影响组件： VFS Unmount Handler 受影响文件： extmod/vfs.c 问题： heap-based buffer overflow CVSS Meta Temp Score： 6.9 当前漏洞价格： $0-$5k CTI Interest Score： 1.28 漏洞影响： CWE分类： CWE-122 描述： heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc() 漏洞细节： 描述： A vulnerability was found in MicroPython 1.23.0. It has been classified as critical. Affected is the function mp_vfsUnmount of the file extmod/vfs.c of the component VFS Unmount Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 29943546343c92334e8518695a11fc0e2ceea68b. It is recommended to apply a patch to fix this issue. In the VFS unmount process, the comparison between the mounted path string and the unmount requested string is based solely on the length of the unmount string, which can lead to a heap buffer overflow read. 漏洞利用： 利用难度： Easy 利用方式： Remote 利用不需要身份验证： Yes 技术细节和公共利用： Known 修复建议： 修复方法： Apply the patch 29943546343c92334e8518695a11fc0e2ceea68b 修复可用下载： github.com 相关漏洞： VDB-248158 VDB-248188 VDB-277765 VDB-277766 版权信息： 版权： 1997-2024 vuldb.com - cc by-nc-sa

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MicroPython 1.23.0 VFS Unmount 堆溢出漏洞分析

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