Heap-based buffer overflow in micropython - CVE-2023-7158
Published: March 28, 2024
Vulnerability identifier: #VU87909
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-7158
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: www.micropython.org
Affected software:
micropython
micropython
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the slice_indices() function in objslice.c. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2023-7158
Install updates from vendor's website.
Sources
- https://vuldb.com/?id.249180
- https://github.com/micropython/micropython/issues/13007
- https://github.com/micropython/micropython/pull/13039
- https://github.com/micropython/micropython/pull/13039/commits/f397a3ec318f3ad05aa287764ae7cef32202380f
- https://github.com/micropython/micropython/releases/tag/v1.22.0