Detections
Analytics

CVE-2021-27433

critical

Description

ARM mbed-ualloc memory library version 1.3.0 is vulnerable to integer wrap-around in function mbed_krbs, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

https://github.com/ARMmbed/mbed-os/pull/14408

https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04

https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective

Details

Source: Mitre, NVD

Published: 2022-05-03

Updated: 2022-05-12

Named Vulnerability: BadAlloc

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00727