CVE-2022-37797

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    CVE-2022-37797

    Published: 12 Sept 2022Last Modified: 24 Oct 2026

    Summary:

    Details: In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition.

    References: https://redmine.lighttpd.net/issues/3165, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/37xxx/CVE-2022-37797.json, https://nvd.nist.gov/vuln/detail/CVE-2022-37797, https://security.gentoo.org/glsa/202210-12, https://www.debian.org/security/2022/dsa-5243, https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 388aad082c5e45575e7d1f866e6fe7acf562e45e
    Fixed -None

    Affected versions

    1.4.65

    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-2022-37797 | CVE-DB