Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50387.json",
"cna_assigner": "mitre"
}{
"cpe": "cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.19.1"
}
]
}{
"cpe": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "4.8.0"
},
{
"fixed": "4.8.6"
},
{
"introduced": "4.9.0"
},
{
"fixed": "4.9.3"
},
{
"introduced": "5.0.0"
},
{
"fixed": "5.0.2"
}
]
}