An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.
{
"unresolved_ranges": [
{
"extracted_events": [
{
"last_affected": "20.04"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
},
{
"extracted_events": [
{
"last_affected": "15.1"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"
},
{
"extracted_events": [
{
"last_affected": "15.2"
}
],
"source": "CPE_FIELD",
"cpe": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
}
]
}