Advisory details:
pysec / PYSEC-2024-91
| Advisory ID | pysec/PYSEC-2024-91 |
| Aliases |
CVE-2024-8946
GHSA-74qm-4v7r-jw2f PYSEC-2024-93 PYSEC-2024-95 PYSEC-2024-96 |
| Summary | 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 3.8 |
| Risk | 1.9 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| There are no known CWE. |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 7.5 | https://osv-vulnerabilities.storage.googleapis.com/PyPI/all.zip |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-17T20:13:35Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2024/8xxx/CVE-2024-8946.json
Source Advisory: vulnrichment/CVE-2024-8946
[{'Exploitation': 'poc'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]