description: An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.
problem types: unspecified
affected:
{
product: NTP
vendor: NTP Project
versions:
status: affected, version: 4.2.8p3
status: affected, version: 4.2.8p4
}
{
product: NTPSec
vendor: NTPsec Project
versions:
status: affected, version: a5fb34b9cc89b92a8fef2f459004865c93bb7f92
}
