GHSA-r33q-22hv-j29q

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    GHSA-r33q-22hv-j29q

    Published: 29 Jun 2021Last Modified: 10 Sept 2026

    Summary: Denial of service in github.com/ethereum/go-ethereum

    Details: ### Impact A DoS vulnerability can make a LES server crash via malicious `GetProofsV2` request from a connected LES client. ### Patches The vulnerability was patched in https://github.com/ethereum/go-ethereum/pull/21896. ### Workarounds This vulnerability only concerns users explicitly enabling `les` server; disabling `les` prevents the exploit. It can also be patched by manually applying the patch in https://github.com/ethereum/go-ethereum/pull/21896. ### For more information If you have any questions or comments about this advisory: * Open an issue in [go-ethereum](https://github.com/ethereum/go-ethereum) * Email us at [[email protected]](mailto:[email protected])

    References: https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q, https://nvd.nist.gov/vuln/detail/CVE-2020-26264, https://github.com/ethereum/go-ethereum/pull/21896, https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46, https://github.com/ethereum/go-ethereum, https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25, https://pkg.go.dev/vuln/GO-2021-0063

    Affected packages

    Package

    Name: github.com/ethereum/go-ethereum

    Purl: pkg:golang/github.com/ethereum/go-ethereum

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.9.25

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-r33q-22hv-j29q | CVE-DB