ALSA-2021:1809

    Dashboard / Vulnerabilities / ALSA-2021:1809

    ALSA-2021:1809

    Published: 18 May 2021Last Modified: 4 Feb 2026

    Summary: Moderate: httpd:2.4 security, bug fix, and enhancement update

    Details: The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es): * httpd: mod_session_cookie does not respect expiry time (CVE-2018-17199) * httpd: mod_proxy_uwsgi buffer overflow (CVE-2020-11984) * httpd: mod_http2 concurrent pool usage (CVE-2020-11993) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

    References: https://errata.almalinux.org/8/ALSA-2021-1809.html, https://vulners.com/cve/CVE-2018-17199, https://vulners.com/cve/CVE-2020-11984, https://vulners.com/cve/CVE-2020-11993

    Affected packages

    Package

    Name: mod_http2

    Purl: pkg:rpm/almalinux/mod_http2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.15.7-3.module_el8.5.0+2609+b30d9eec

    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