CVE-2021-41524

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    CVE-2021-41524

    Published: 5 Oct 2021Last Modified: 8 Jul 2026

    Summary:

    Details: While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.

    References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/, http://www.openwall.com/lists/oss-security/2021/10/05/1, https://httpd.apache.org/security/vulnerabilities_24.html, https://security.gentoo.org/glsa/202208-20, https://security.netapp.com/advisory/ntap-20211029-0009/, https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ, https://www.oracle.com/security-alerts/cpujan2022.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- bbacd798d1494b5a99f4e3edab068ccc77b03b7e
    Fixed -None

    Affected versions

    2.4.49

    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-2021-41524 | CVE-DB