RHSA-2021:1809: Moderate: httpd:2.4 security, bug fix, and enhancement update
First published: Tue May 18 2021(Updated: )
The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.<br>Security Fix(es):<br><li> httpd: mod_session_cookie does not respect expiry time (CVE-2018-17199)</li> <li> httpd: mod_proxy_uwsgi buffer overflow (CVE-2020-11984)</li> <li> httpd: mod_http2 concurrent pool usage (CVE-2020-11993)</li> 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.<br>Additional Changes:<br>For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/httpd | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-debugsource | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-devel | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-filesystem | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-manual | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-tools | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-tools-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-debugsource | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-devel | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-tools | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-tools-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-debugsource | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-devel | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-tools | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd-tools-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb | 2.4.37-39.module+el8.4.0+9658+b87b2deb |
| redhat/httpd | <2.4.37-39.module+el8.4.0+9658+b87b2deb.aa | 2.4.37-39.module+el8.4.0+9658+b87b2deb.aa |
| redhat/httpd-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb.aa | 2.4.37-39.module+el8.4.0+9658+b87b2deb.aa |
| redhat/httpd-debugsource | <2.4.37-39.module+el8.4.0+9658+b87b2deb.aa | 2.4.37-39.module+el8.4.0+9658+b87b2deb.aa |
| redhat/httpd-devel | <2.4.37-39.module+el8.4.0+9658+b87b2deb.aa | 2.4.37-39.module+el8.4.0+9658+b87b2deb.aa |
| redhat/httpd-tools | <2.4.37-39.module+el8.4.0+9658+b87b2deb.aa | 2.4.37-39.module+el8.4.0+9658+b87b2deb.aa |
| redhat/httpd-tools-debuginfo | <2.4.37-39.module+el8.4.0+9658+b87b2deb.aa | 2.4.37-39.module+el8.4.0+9658+b87b2deb.aa |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:1809?
The severity of RHSA-2021:1809 is classified as moderate due to the potential exploitation of vulnerabilities affecting the Apache HTTP Server.
How do I fix RHSA-2021:1809?
To fix RHSA-2021:1809, update to the fixed version 2.4.37-39.module+el8.4.0+9658+b87b2deb or later of the affected httpd packages.
What vulnerabilities are addressed in RHSA-2021:1809?
RHSA-2021:1809 addresses vulnerabilities such as CVE-2018-17199 and CVE-2020-11984 affecting mod_session_cookie and mod_proxy_uwsgi respectively.
Which packages are affected by RHSA-2021:1809?
Affected packages include httpd, httpd-debuginfo, httpd-devel, httpd-tools, and several others from the Red Hat distributions.
Is it necessary to restart services after applying RHSA-2021:1809?
Yes, it is generally necessary to restart the Apache HTTP Server service to apply the updates and address vulnerabilities after patching.
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