CVE-2021-22918

    Dashboard / Vulnerabilities / CVE-2021-22918

    CVE-2021-22918

    Published: 12 Jul 2021Last Modified: 8 Jul 2026

    Summary:

    Details: Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo().

    References: https://security.gentoo.org/glsa/202401-23, https://security.netapp.com/advisory/ntap-20210805-0003/, https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf, https://nodejs.org/en/blog/vulnerability/july-2021-security-releases/, https://hackerone.com/reports/1209681

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 2f45ad8060e13d5ac912335096d21526f2f9602b
    Fixed -4eb2de9a776873d0475db611a8e7cba716afdf6b

    Affected versions

    v16.4.0

    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
    CVE-2021-22918 | CVE-DB