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ethers@5.4.2 vulnerabilities

A complete and compact Ethereum library, for dapps, wallets and any other tools.

  • latest version

    6.15.0

  • latest non vulnerable version

    6.15.0

  • first published

    8 years ago

  • latest version published

    3 months ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the ethers 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)

    ethers is an A complete Ethereum wallet implementation and utilities in JavaScript (and TypeScript).

    Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) via the parseFixed function.

    PoC

    import { parseFixed } from '@ethersproject/bignumber'

console.log(parseFixed('0.' + '0'.repeat(8e6) + '1')) // hangs

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

    Upgrade ethers to version 5.4.7 or higher.

    >=5.2.0 <5.4.7
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