Buffer Overflow Affecting contiki-ng/contiki-ng package, versions [,4.8)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.14% (50th percentile)

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  • Snyk IDSNYK-UNMANAGED-CONTIKINGCONTIKING-2975601
  • published5 Aug 2022
  • disclosed5 Aug 2022
  • creditUnknown

Introduced: 5 Aug 2022

CVE-2021-32771  (opens in a new tab)
CWE-119  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade contiki-ng/contiki-ng to version 4.8 or higher.

Overview

Affected versions of this package are vulnerable to Buffer Overflow when copying an IPv6 address prefix in the RPL-Classic implementation. To trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits.

CVSS Scores

version 3.1