PT-2022-23033 · Unknown · Contiki-Ng

Joakimeriksson · Published 2022-08-04 · Updated 2022-08-11 · CVE-2022-35927

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Contiki-NG versions prior to 4.7

Description The issue is related to the RPL-Classic routing protocol implementation in the Contiki-NG operating system. Specifically, an incoming DODAG Information Option (DIO) control message can contain a prefix information option with a length parameter that is not validated. This can cause a buffer overflow when copying the prefix in the set ip from prefix function. The estimated number of potentially affected devices is not provided, and there is no information about real-world incidents where this issue was exploited.

Recommendations To resolve the issue, users should upgrade to Contiki-NG 4.7 or later. As a temporary workaround, consider restricting the reception of RPL DIO messages from external parties until a patched version is installed. There are no other workarounds for this issue.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2022-35927

GHSA-9RM9-3PHH-P4WM

Affected Products

Contiki-Ng

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/35xxx/CVE-2022-35927.json · Exploit
• https://github.com/contiki-ng/contiki-ng/pull/1589/commits/4fffab0e632c4d01910fa957d1fd9ef321eb87d2 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-35927 · Security Note
• https://osv.dev/vulnerability/CVE-2022-35927 · Vendor Advisory
• https://github.com/contiki-ng/contiki-ng/pull/1589 · Note
• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-9rm9-3phh-p4wm · Note
• https://t.me/cibsecurity/47593 · Telegram Post