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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

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

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

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

Configurations

Configuration 1 (hide)

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

History

12 May 2022, 19:15

Type	Values Removed	Values Added
First Time		Arm Arm mbed Ualloc
CPE		cpe:2.3:a:arm:mbed_ualloc:1.3.0:::::::*
References	~~(CONFIRM) https://github.com/ARMmbed/mbed-os/pull/14408 -~~	(CONFIRM) https://github.com/ARMmbed/mbed-os/pull/14408 - Issue Tracking, Patch, Third Party Advisory
References	~~(CONFIRM) https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 -~~	(CONFIRM) https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 - Third Party Advisory, US Government Resource
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
CWE		CWE-190

03 May 2022, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-05-03 21:15

Updated : 2023-12-10 14:22

NVD link : CVE-2021-27433

Mitre link : CVE-2021-27433

CVE.ORG link : CVE-2021-27433

JSON object : View

Products Affected

arm

mbed_ualloc

CWE

CWE-190

Integer Overflow or Wraparound

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