PT-2021-4683 · Riot-Os · Riot-Os

Published 2021-05-02 · Updated 2022-05-12 · CVE-2021-27427

Positive Technologies (AI Summary)

CVSS v3.1

10

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 RIOT OS version 2020.01.1

Description The issue is related to an integer overflow vulnerability in the implementation of the calloc function in the RIOT operating system for network devices. This vulnerability can be exploited by a remote attacker to execute arbitrary code, potentially leading to unexpected behavior such as a crash or remote code injection.

Recommendations For RIOT OS version 2020.01.1, consider applying a patch or update that fixes the integer wrap-around issue in the calloc function implementation to prevent arbitrary memory allocation and potential code execution. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2021-05376

CVE-2021-27427

Affected Products

Riot-Os

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2021-27427 · Security Note
• https://bdu.fstec.ru/vul/2021-05376 · Security Note
• https://osv.dev/vulnerability/CVE-2021-27427 · Vendor Advisory
• https://github.com/RIOT-OS/RIOT · Note
• https://msrc-blog.microsoft.com/2021/04/29/badalloc-memory-allocation-vulnerabilities-could-affect-wide-range-of-iot-and-ot-devices-in-industrial-medical-and-enterprise-networks · Note
• https://avertium.com/blog/overview-badalloc-vulnerabilities · Note
• https://cisa.gov/uscert/ics/advisories/icsa-21-119-04 · Note
• https://t.me/cibsecurity/41850 · Telegram Post
• https://hivepro.com/wp-content/uploads/2021/05/Threat-Advisory-TA212109.pdf · Note