Products
MicroPython
- 1.23.0
Source
cna@vuldb.com
Tags
CVE-2024-8946 details
Last Modified : Sept. 17, 2024, 7:15 p.m.
Description
A vulnerability was found in MicroPython 1.23.0. It has been classified as critical. Affected is the function mp_vfs_umount 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.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6 | 7.3 | 8 | 9 | 10 |
|---|
Weakness
| Weakness | Name | Description |
|---|---|---|
| CWE-122 | Heap-based Buffer Overflow | A 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(). |
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Base Score
7.3
Exploitability Score
3.9
Impact Score
3.4
Base Severity
HIGH
Vector String : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
References
| URL | Source |
|---|---|
| https://github.com/micropython/micropython/commit/29943546343c92334e8518695a11fc0e2ceea68b | cna@vuldb.com |
| https://github.com/micropython/micropython/issues/13006 | cna@vuldb.com |
| https://github.com/micropython/micropython/issues/13006#issuecomment-1820309455 | cna@vuldb.com |
| https://vuldb.com/?ctiid.277764 | cna@vuldb.com |
| https://vuldb.com/?id.277764 | cna@vuldb.com |
| https://vuldb.com/?submit.409312 | cna@vuldb.com |