Vulnerability 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
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Micropython | Micropython | 1.23.0 |
Related Weaknesses (CWE)
References
- https://github.com/micropython/micropython/commit/29943546343c92334e8518695a11fcPatch
- https://github.com/micropython/micropython/issues/13006ExploitIssue Tracking
- https://github.com/micropython/micropython/issues/13006#issuecomment-1820309455ExploitThird Party Advisory
- https://vuldb.com/?ctiid.277764Permissions Required
- https://vuldb.com/?id.277764Third Party Advisory
- https://vuldb.com/?submit.409312Third Party Advisory
FAQ
What is CVE-2024-8946?
CVE-2024-8946 is a vulnerability with a CVSS score of 7.3 (HIGH). 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 manipulat...
How severe is CVE-2024-8946?
CVE-2024-8946 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-8946?
Check the references section above for vendor advisories and patch information. Affected products include: Micropython Micropython.