The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.
{
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28366.json",
"unresolved_ranges": [
{
"source": "DESCRIPTION",
"extracted_events": [
{
"introduced": "1.3.2"
},
{
"fixed": "2.x"
}
]
}
]
}