CVE-2023-30546

    Dashboard / Vulnerabilities / CVE-2023-30546

    CVE-2023-30546

    Published: 26 Apr 2023Last Modified: 12 Aug 2026

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

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30546.json, https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-257g-w39m-5jj4, https://nvd.nist.gov/vuln/detail/CVE-2023-30546, https://github.com/contiki-ng/contiki-ng/pull/2425

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    release/v4.8

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-30546 | CVE-DB