RHSA-2021:1809 — Security Advisory

Red Hat Security Advisory: httpd:2.4 security, bug fix, and enhancement update

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Severity

Moderate

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · May 18, 2021

Updated · November 2, 2026

Topic

An update for the httpd:2.4 module is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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 Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.

Related CVEs

RHSA-2021:1809 — Red Hat Security Advisory: httpd:2.4 security, bug fix, and enhancement update | PulseLinux