CVE Vulnerability

CVE-2021-27433

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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/ARMmbed/mbed-os/pull/14408 Issue Tracking Patch
https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 Third Party Advisory US Government Resource
Configurations

Configuration 1

cpe:2.3:a:arm:mbed_ualloc:1.3.0:*:*:*:*:*:*:*
Information

Published : 2022-05-03 09:15

Updated : 2022-05-12 07:15

NVD link : CVE-2021-27433

Mitre link : CVE-2021-27433

Products Affected
No products.
CWE
CWE-190