Integer overflow in Riot OS
CVE-2021-27427
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.
Vulnerability class: Integer Overflow
EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Riot Os — versions 2020.01.1
- Riot-os Riot — versions 2020.01.1
Weakness classification (CWE)
References
- ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory)
- ics-cert@hq.dhs.gov (x_refsource_CONFIRM, Product, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27427?
- CVE-2021-27427 is a high-severity vulnerability in Riot OS, classified under Integer Overflow or Wraparound. CVSS score: 7.3/10. Published 2022-05-03.
- How severe is CVE-2021-27427?
- High severity. CVSS v3 base score is 7.3 out of 10.