Vulnerability · Published May 3, 2022 · Assigned by icscert
CVE-2021-27427RIOT OS Integer Overflow or Wraparound
High 7.3
In plain English
A high-severity integer overflow in RIOT OS from RIOT OS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities).
Severity (CVSS 3.1)7.3High
Exploit odds (30 days)1.7%top 23.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-190 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 x_refsource_CONFIRM
- https://github.com/RIOT-OS/RIOT x_refsource_CONFIRM