CVE-2024-47181

HIGH EPSS 42.2%
Published Nov 27, 20241y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Nov 27, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
42.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-704

Affected Products 1

VendorProductVersionRange
contiki-ngcontiki-ng* ≤4.9

References 2

  • github.com https://github.com/contiki-ng/contiki-ng/pull/2962
    Issue TrackingPatch
  • github.com https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-crjw-x84h-h6x3
    Vendor Advisory

Remediation

  • github.com https://github.com/contiki-ng/contiki-ng/pull/2962
    Issue TrackingPatch