DEBIAN-CVE-2016-4979

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    DEBIAN-CVE-2016-4979

    Published: 6 Jul 2016Last Modified: 22 Sept 2026
    Upstream:
    CVE-2016-4979

    Summary:

    Details: The Apache HTTP Server 2.4.18 through 2.4.20, when mod_http2 and mod_ssl are enabled, does not properly recognize the "SSLVerifyClient require" directive for HTTP/2 request authorization, which allows remote attackers to bypass intended access restrictions by leveraging the ability to send multiple requests over a single connection and aborting a renegotiation.

    References: https://security-tracker.debian.org/tracker/CVE-2016-4979

    Affected packages

    Package

    Name: apache2

    Purl: pkg:deb/debian/apache2?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4.23-1

    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