CVE-2023-30546

Contiki-NG has off-by-one error in Antelope DBMS

Description

Contiki-NG is an operating system for Internet of Things devices. An off-by-one error can be triggered in the Antelope database management system in the Contiki-NG operating system in versions 4.8 and prior. The problem exists in the Contiki File System (CFS) backend for the storage of data (file os/storage/antelope/storage-cfs.c). In the functions `storage_get_index` and `storage_put_index`, a buffer for merging two strings is allocated with one byte less than the maximum size of the merged strings, causing subsequent function calls to the cfs_open function to read from memory beyond the buffer size. The vulnerability has been patched in the "develop" branch of Contiki-NG, and is expected to be included in the next release. As a workaround, the problem can be fixed by applying the patch in Contiki-NG pull request #2425.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.21%
Vendor Advisory github.com
Affected: contiki-ng contiki-ng
Published at:
Updated at:

References

Link Tags
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-257g-w39m-5jj4 vendor advisory
https://github.com/contiki-ng/contiki-ng/pull/2425 patch

Frequently Asked Questions

What is the severity of CVE-2023-30546?
CVE-2023-30546 has been scored as a critical severity vulnerability.
How to fix CVE-2023-30546?
To fix CVE-2023-30546, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-30546 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-30546 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-30546?
CVE-2023-30546 affects contiki-ng contiki-ng.
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