CVE-2024-8948— MicroPython objint.c mpz_as_bytes heap-based overflow
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I. Basic Information for CVE-2024-8948
Vulnerability Information
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Vulnerability Title
MicroPython objint.c mpz_as_bytes heap-based overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in MicroPython 1.23.0. It has been rated as critical. Affected by this issue is the function mpz_as_bytes of the file py/objint.c. The manipulation leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The patch is identified as 908ab1ceca15ee6fd0ef82ca4cba770a3ec41894. It is recommended to apply a patch to fix this issue. In micropython objint component, converting zero from int to bytes leads to heap buffer-overflow-write at mpz_as_bytes.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
MicroPython 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MicroPython是MicroPython开源的一个小型的开源Python编程语言解释器。 MicroPython 1.23.0版本存在安全漏洞，该漏洞源于py/objint.c文件中的mpz_as_bytes函数，在将整数转换为字节时会导致堆缓冲区溢写出错。
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 |
|---|---|---|---|---|
| - | MicroPython | 1.23.0 | - |
II. Public POCs for CVE-2024-8948
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|---|
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Same Patch Batch · n/a · 2024-09-17 · 9 CVEs total
| CVE-2024-38812 | 9.8 CRITICAL | Heap-overflow vulnerability |
| CVE-2024-38813 | 7.5 HIGH | Privilege escalation vulnerability |
| CVE-2024-8946 | 7.3 HIGH | MicroPython VFS Unmount vfs.c mp_vfs_umount heap-based overflow |
| CVE-2024-8947 | 5.6 MEDIUM | MicroPython objarray.c use after free |
| CVE-2024-46085 | FrogCms 安全漏洞 | |
| CVE-2024-46362 | FrogCms 安全漏洞 | |
| CVE-2024-47047 | TYPO3 安全漏洞 | |
| CVE-2024-47049 | File Handling and Storage Helper 安全漏洞 |
IV. Related Vulnerabilities
Same product: MicroPython
- CVE-2026-1998
micropython runtime.c mp_import_all memory corruption - CVE-2024-8947
MicroPython objarray.c use after free - CVE-2024-8946
MicroPython VFS Unmount vfs.c mp_vfs_umount heap-based overf - CVE-2023-7158
MicroPython objslice.c slice_indices heap-based overflow - CVE-2023-7152
MicroPython modselect.c poll_set_add_fd use after free
Same weakness: CWE-122
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Pillow: Heap buffer overflow with nested list coordinates
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