CVE-2021-27433

Published: May 3, 2022Modified: Nov 21, 2024

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD

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.

Affected (1)

Products: Arm: Mbed Ualloc

Arm

1 product

Mbed Ualloc

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Arm Mbed Ualloc	Version 1.3.0

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (4)

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

Source: ics-cert@hq.dhs.gov

Issue TrackingPatchThird Party Advisory

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

Source: ics-cert@hq.dhs.gov

Third Party AdvisoryUS Government Resource

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

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchThird Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryUS Government Resource

Timeline

No history available yet.