RHSA-2021:3856: Important: httpd security update

Published Oct 14, 2021
·
Updated

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.<br>Security Fix(es):<br><li> httpd: modproxy: SSRF via a crafted request uri-path containing "unix:" (CVE-2021-40438)</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.

Affected Software

51 affected componentsFixes available
redhat/httpd<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-debuginfo<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-devel<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-manual<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-tools<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd-debuginfo<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd-devel<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd-manual<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd-tools<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd-debuginfo<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd-devel<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd-manual<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd-tools<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd<2.4.6-67.el7_4.7
2.4.6-67.el7_4.7
redhat/httpd<2.4.6-67.el7_4.7
2.4.6-67.el7_4.7
redhat/httpd-debuginfo<2.4.6-67.el7_4.7
2.4.6-67.el7_4.7
redhat/httpd-devel<2.4.6-67.el7_4.7
2.4.6-67.el7_4.7
redhat/httpd-manual<2.4.6-67.el7_4.7
2.4.6-67.el7_4.7
redhat/httpd-tools<2.4.6-67.el7_4.7
2.4.6-67.el7_4.7
redhat/httpd<2.4.6-45.el7_3.6
2.4.6-45.el7_3.6
redhat/httpd<2.4.6-45.el7_3.6
2.4.6-45.el7_3.6
redhat/httpd-debuginfo<2.4.6-45.el7_3.6
2.4.6-45.el7_3.6
redhat/httpd-devel<2.4.6-45.el7_3.6
2.4.6-45.el7_3.6
redhat/httpd-manual<2.4.6-45.el7_3.6
2.4.6-45.el7_3.6
redhat/httpd-tools<2.4.6-45.el7_3.6
2.4.6-45.el7_3.6
redhat/httpd<2.4.6-40.el7_2.7
2.4.6-40.el7_2.7
redhat/httpd<2.4.6-40.el7_2.7
2.4.6-40.el7_2.7
redhat/httpd-debuginfo<2.4.6-40.el7_2.7
2.4.6-40.el7_2.7
redhat/httpd-devel<2.4.6-40.el7_2.7
2.4.6-40.el7_2.7
redhat/httpd-manual<2.4.6-40.el7_2.7
2.4.6-40.el7_2.7
redhat/httpd-tools<2.4.6-40.el7_2.7
2.4.6-40.el7_2.7
redhat/httpd-debuginfo<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-devel<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-tools<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-debuginfo<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-devel<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd-tools<2.4.6-97.el7_9.1
2.4.6-97.el7_9.1
redhat/httpd<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd-debuginfo<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd-devel<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd-tools<2.4.6-90.el7_7.1
2.4.6-90.el7_7.1
redhat/httpd<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd-debuginfo<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd-devel<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2
redhat/httpd-tools<2.4.6-89.el7_6.2
2.4.6-89.el7_6.2

Remediation

Event History

Jun 20, 2024
Advisory Published
via Red Hat·01:33 AM
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Frequently Asked Questions

1

What is the severity of RHSA-2021:3856?

The severity of RHSA-2021:3856 is classified as moderate.

2

How do I fix RHSA-2021:3856?

You can fix RHSA-2021:3856 by updating the httpd package to version 2.4.6-97.el7_9.1 or later.

3

What vulnerabilities are addressed in RHSA-2021:3856?

RHSA-2021:3856 addresses a Server-Side Request Forgery (SSRF) vulnerability via a crafted request URI-path containing 'unix:' (CVE-2021-40438).

4

Which versions of httpd are affected by RHSA-2021:3856?

Affected versions include all httpd packages prior to 2.4.6-97.el7_9.1.

5

Is RHSA-2021:3856 related to Apache HTTP Server security?

Yes, RHSA-2021:3856 is a security advisory relevant to vulnerabilities in the Apache HTTP Server.

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