CVE-2024-41126

Out-of-bounds read when decoding SNMP messages in Contiki-NG

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-message.c module, where the snmp_message_decode function fails to check the boundary of the message buffer when reading a byte from it immediately after decoding an object identifier (OID). The problem has been patched in Contiki-NG pull request 2937. It will be included in the next release of Contiki-NG. Users are advised to either 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.

Category

8.3
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
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-444j-93j3-5gj4 vendor advisory
https://github.com/contiki-ng/contiki-ng/pull/2937 patch issue tracking

Frequently Asked Questions

What is the severity of CVE-2024-41126?
CVE-2024-41126 has been scored as a high severity vulnerability.
How to fix CVE-2024-41126?
To fix CVE-2024-41126, 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-2024-41126 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-41126 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-2024-41126?
CVE-2024-41126 affects contiki-ng contiki-ng.
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