CVE-2024-47181

Unaligned memory access in RPL option processing in Contiki-NG

Description

Contiki-NG is an open-source, cross-platform operating system for IoT devices. An unaligned memory access can be triggered in the two RPL implementations of the Contiki-NG operating system. The problem can occur when either one of these RPL implementations is enabled and connected to an RPL instance. If an IPv6 packet containing an odd number of padded bytes before the RPL option, it can cause the rpl_ext_header_hbh_update function to read a 16-bit integer from an odd address. The impact of this unaligned read is architecture-dependent, but can potentially cause the system to crash. The problem has not been patched as of release 4.9, but will be included in the next release. One can apply the changes in Contiki-NG pull request #2962 to patch the system or wait for the next release.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.06%
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-crjw-x84h-h6x3 vendor advisory
https://github.com/contiki-ng/contiki-ng/pull/2962 patch issue tracking

Frequently Asked Questions

What is the severity of CVE-2024-47181?
CVE-2024-47181 has been scored as a high severity vulnerability.
How to fix CVE-2024-47181?
To fix CVE-2024-47181, 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-2024-47181 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-47181 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-2024-47181?
CVE-2024-47181 affects contiki-ng contiki-ng.
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