CVE-2021-27427 — HIGH (7.3)

Vulnerability Description

RIOT OS version 2020.01.1 is vulnerable to integer wrap-around in its implementation of calloc function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

CVSS Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Riot-Os	Riot	2020.01.1

Related Weaknesses (CWE)

CWE-190

References

https://github.com/RIOT-OS/RIOTProductThird Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party AdvisoryUS Government Resource
https://github.com/RIOT-OS/RIOTProductThird Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04Third Party AdvisoryUS Government Resource

FAQ

What is CVE-2021-27427?

CVE-2021-27427 is a vulnerability with a CVSS score of 7.3 (HIGH). RIOT OS version 2020.01.1 is vulnerable to integer wrap-around in its implementation of calloc function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash...

How severe is CVE-2021-27427?

CVE-2021-27427 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-27427?

Check the references section above for vendor advisories and patch information. Affected products include: Riot-Os Riot.