An IPv6 FlowSpec validation bypass in the CZ.NIC BIRD Internet Routing Daemon allows an established BGP peer to inject FlowSpec rules matching destinations outside the address space authorized by the unicast-route validation procedure. With…

{
                    "defaultStatus": "unknown",
                    "modules": [
                        "IPv6 FlowSpec validation"
                    ],
                    "product": "BIRD",
                    "programFiles": [
                        "nest/rt-table.c"
                    ],
                    "programRoutines": [
                        {
                            "name": "net_flow_has_dst_prefix"
                        }
                    ],
                    "repo": "https://gitlab.nic.cz/labs/bird",
                    "vendor": "nic",
                    "versions": [
                        {
                            "lessThanOrEqual": "2.20.0",
                            "status": "affected",
                            "version": "2.0.9",
                            "versionType": "semver"
                        },
                        {
                            "lessThanOrEqual": "3.4.0",
                            "status": "affected",
                            "version": "3.0.0",
                            "versionType": "semver"
                        }
                    ]
                }