An issue was discovered in FRRouting FRR through 9.0.1. A crash can occur for a crafted BGP UPDATE message without mandatory attributes, e.g., one with only an unknown transit attribute.
{
    "binaries": [
        {
            "binary_name": "quagga",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-bgpd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-core",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-isisd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-ospf6d",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-ospfd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-pimd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-ripd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "quagga-ripngd",
            "binary_version": "1.2.4-1ubuntu0.1~esm2"
        }
    ]
}
          {
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "quagga",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-bgpd",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-core",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-isisd",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-ospf6d",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-ospfd",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-pimd",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-ripd",
            "binary_version": "1.2.4-4ubuntu0.4"
        },
        {
            "binary_name": "quagga-ripngd",
            "binary_version": "1.2.4-4ubuntu0.4"
        }
    ]
}
          {
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "frr",
            "binary_version": "7.2.1-1ubuntu0.2+esm2"
        },
        {
            "binary_name": "frr-pythontools",
            "binary_version": "7.2.1-1ubuntu0.2+esm2"
        },
        {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "7.2.1-1ubuntu0.2+esm2"
        },
        {
            "binary_name": "frr-snmp",
            "binary_version": "7.2.1-1ubuntu0.2+esm2"
        }
    ]
}
          {
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "frr",
            "binary_version": "8.1-1ubuntu1.7"
        },
        {
            "binary_name": "frr-pythontools",
            "binary_version": "8.1-1ubuntu1.7"
        },
        {
            "binary_name": "frr-rpki-rtrlib",
            "binary_version": "8.1-1ubuntu1.7"
        },
        {
            "binary_name": "frr-snmp",
            "binary_version": "8.1-1ubuntu1.7"
        }
    ]
}