Description
Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-ber.c module, where the function snmp_ber_decode_string_len_buffer decodes the string length from a received SNMP packet. In one place, one byte is read from the buffer, without checking that the buffer has another byte available, leading to a possible out-of-bounds read. The problem has been patched in Contiki-NG pull request #2936. It will be included in the next release of Contiki-NG. Users are advised to apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
Published: 2024-11-27
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2024-39321 Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-ber.c module, where the function snmp_ber_decode_string_len_buffer decodes the string length from a received SNMP packet. In one place, one byte is read from the buffer, without checking that the buffer has another byte available, leading to a possible out-of-bounds read. The problem has been patched in Contiki-NG pull request #2936. It will be included in the next release of Contiki-NG. Users are advised to apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
History

Thu, 10 Apr 2025 15:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*

Wed, 27 Nov 2024 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Contiki-ng
Contiki-ng contiki-ng
CPEs cpe:2.3:o:contiki-ng:contiki-ng:-:*:*:*:*:*:*:*
Vendors & Products Contiki-ng
Contiki-ng contiki-ng
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 27 Nov 2024 18:45:00 +0000

Type Values Removed Values Added
Description Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-ber.c module, where the function snmp_ber_decode_string_len_buffer decodes the string length from a received SNMP packet. In one place, one byte is read from the buffer, without checking that the buffer has another byte available, leading to a possible out-of-bounds read. The problem has been patched in Contiki-NG pull request #2936. It will be included in the next release of Contiki-NG. Users are advised to apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.
Title Out-of-bounds read in SNMP when decoding a string in Contiki-NG
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}


Subscriptions

Contiki-ng Contiki-ng
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-11-27T19:22:42.056Z

Reserved: 2024-07-15T15:53:28.323Z

Link: CVE-2024-41125

cve-icon Vulnrichment

Updated: 2024-11-27T19:21:51.700Z

cve-icon NVD

Status : Analyzed

Published: 2024-11-27T19:15:32.883

Modified: 2025-04-10T14:55:43.850

Link: CVE-2024-41125

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses