CVE-2023-50387

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.

Database specific

{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50387.json"
}

References

Affected packages

Git / gitlab.nic.cz/knot/knot-resolver

Affected ranges

Type

GIT

Repo

https://gitlab.nic.cz/knot/knot-resolver

Events

Introduced

32118aabedf403071aef862a85b8d501cebfa371

Last Affected

32118aabedf403071aef862a85b8d501cebfa371

Database specific

Show details

{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
            "range": [
                {
                    "introduced": "r2-sp1"
                },
                {
                    "last_affected": "r2-sp1"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}

Affected versions

Other

r2-sp1

v2.*

v2.1.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-50387.json"