In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check rem_len size in readpacket.
[
{
"product": "Eclipse Paho MQTT C Client",
"vendor": "The Eclipse Foundation",
"versions": [
{
"lessThan": "1.1.0",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]