PT-2021-14387 · Unknown · Contiki-Ng

Joakimeriksson · Published 2021-06-18 · Updated 2021-06-24 · CVE-2021-21281

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/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 4.6

Description: A buffer overflow issue exists in Contiki-NG, an open-source operating system for internet of things devices. After establishing a TCP socket using the tcp-socket library, a remote endpoint can send a packet with an unvalidated data offset.

Recommendations: For versions prior to 4.6, apply the patch for this issue out-of-band as a workaround.

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-21281

GHSA-MC42-FQFR-H9FP

Affected Products

Contiki-Ng

References · 5

• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp · Patch
• https://github.com/contiki-ng/contiki-ng/pull/1366 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-21281 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21281 · Vendor Advisory
• https://t.me/cvenotify/16558 · Telegram Post