AZL-43639

    Dashboard / Vulnerabilities / AZL-43639

    AZL-43639

    Published: 23 Oct 2023Last Modified: 21 Apr 2026
    Upstream:
    CVE-2023-43622

    Summary: CVE-2023-43622 affecting package mod_http2 1.15.14-2

    Details: An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known "slow loris" attack pattern. This has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.57. Users are recommended to upgrade to version 2.4.58, which fixes the issue.

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-43622

    Affected packages

    Package

    Name: mod_http2

    Purl: pkg:rpm/azure-linux/mod_http2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    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
    AZL-43639 | CVE-DB