title: Remote Denial of Service in CoAP Option Parsing Due To Integer Overflow
description: A remote adversary with the ability to send arbitrary CoAP packets to be parsed by Zephyr is able to cause a denial of service. This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
problem types: CWE-190 Integer Overflow or Wraparound
affected:
{
product: zephyr
vendor: zephyrproject-rtos
versions:
lessThan: unspecified, status: affected, version: 2.2.0, versionType: custom
lessThan: unspecified, status: affected, version: 2.1.0, versionType: custom
lessThan: unspecified, status: affected, version: 1.14.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 6.8
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
version: 3.1
]