title: Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash
description: High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SDK before v7.4.0, causing a system crash.
problem types: CWE-476 NULL Pointer Dereference
affected:
{
defaultStatus: unaffected
packageName: Ember ZNet SDK
platforms: [32 bit, ARM]
product: Ember ZNet SDK
repo: https://github.com/SiliconLabs/gecko_sdk/releases
vendor: silabs.com
versions:
lessThan: 7.4.0, status: affected, version: 0, versionType: 7.4.x
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
version: 3.1
]
format: CVSS
scenarios: GENERAL