An integer underflow in dpdk versions before 18.11.10 and before 19.11.5 in the move_desc function can lead to large amounts of CPU cycles being eaten up in a long running loop. An attacker could cause move_desc to get stuck in a 4,294,967,295-count iteration loop. Depending on how vhost_crypto is being used this could prevent other VMs or network tasks from being serviced by the busy DPDK lcore for an extended period.
[
{
"events": [
{
"introduced": "18.02.1"
},
{
"fixed": "18.11.10"
}
]
},
{
"events": [
{
"introduced": "19.02"
},
{
"fixed": "19.11.5"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "18.11.10"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "19.11.5"
}
]
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14378.json"