title: Possible buffer overread from reading DNS responses
description: The vulnerability is caused by improper check for check if RDLENGTH does not overflow the buffer in response from DNS server.
problem types: CWE-754: Improper Check for Unusual or Exceptional Conditions
affected:
{
defaultStatus: unaffected
modules: Agent
product: Zabbix
repo: https://git.zabbix.com/
vendor: Zabbix
versions:
changes: [at: 5.0.40, status: unaffected], lessThanOrEqual: 5.0.39, status: affected, version: 5.0.0, versionType: git
changes: [at: 6.0.24, status: unaffected], lessThanOrEqual: 6.0.23, status: affected, version: 6.0.0, versionType: git
changes: [at: 6.4.9, status: unaffected], lessThanOrEqual: 6.4.8, status: affected, version: 6.4.0, versionType: git
changes: [at: 7.0.0alpha8, status: unaffected], lessThanOrEqual: 7.0.0alpha7, status: affected, version: 7.0.0alpha1, versionType: git
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 3.9
baseSeverity: LOW
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
version: 3.1
]
format: CVSS
scenarios: GENERAL