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Red Hat Enterprise Linux 7: RHSA-2021:3856-01 Important: Httpd SSRF Fix

red hat
Calendar Grey October 14, 2021
Dist Redhat Esm H88
Stay informed with essential news from Red Hat regarding the vital httpd security patch, ensuring your server remains secure and current.
An update for httpd is now available for Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.3 Advanced Update Support, Red...

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the updated packages, the httpd daemon will be restarted automatically.

Summary

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

Topics%20covered

Topics Covered

security advisory update httpd important red hat enterprise web server ssrf

References

https://access.redhat.com/security/cve/CVE-2021-40438 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client Optional (v. 7):
Source: httpd-2.4.6-97.el7_9.1.src.rpm
noarch: httpd-manual-2.4.6-97.el7_9.1.noarch.rpm
x86_64: httpd-2.4.6-97.el7_9.1.x86_64.rpm httpd-debuginfo-2.4.6-97.el7_9.1.x86_64.rpm httpd-devel-2.4.6-97.el7_9.1.x86_64.rpm httpd-tools-2.4.6-97.el7_9.1.x86_64.rpm mod_ldap-2.4.6-97.el7_9.1.x86_64.rpm mod_proxy_html-2.4.6-97.el7_9.1.x86_64.rpm mod_session-2.4.6-97.el7_9.1.x86_64.rpm mod_ssl-2.4.6-97.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: httpd-2.4.6-97.el7_9.1.src.rpm
noarch: httpd-manual-2.4.6-97.el7_9.1.noarch.rpm
x86_64: httpd-2.4.6-97.el7_9.1.x86_64.rpm httpd-debuginfo-2.4.6-97.el7_9.1.x86_64.rpm httpd-devel-2.4.6-97.el7_9.1.x86_64.rpm httpd-tools-2.4.6-97.el7_9.1.x86_64.rpm mod_ldap-2.4.6-97.el7_9.1.x86_64.rpm mod_proxy_html-2.4.6-97.el7_9.1.x86_64.rpm mod_session-2.4.6-97.el7_9.1.x86_64.rpm mod_ssl-2.4.6-97.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 7.2):
Source: httpd-2.4.6-40.el7_2.7.src.rpm
noarch: httpd-manual-2.4.6-40.el7_2.7.noarch.rpm
x86_64: httpd-2.4.6-40.el7_2.7.x86_64.rpm httpd-debuginfo-2.4.6-40.el7_2.7.x86_64.rpm httpd-devel-2.4.6-40.el7_2.7.x86_64.rpm httpd-tools-2.4.6-40.el7_2.7.x86_64.rpm mod_ssl-2.4.6-40.el7_2.7.x86_64.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3856-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3856
Issue date: 2021-10-14

Topic

An update for httpd is now available for Red Hat Enterprise Linux 7, RedHat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux7.3 Advanced Update Support, Red Hat Enterprise Linux 7.4 Advanced UpdateSupport, Red Hat Enterprise Linux 7.6 Advanced Update Support, Red HatEnterprise Linux 7.6 Telco Extended Update Support, Red Hat EnterpriseLinux 7.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 7.7Advanced Update Support, Red Hat Enterprise Linux 7.7 Telco Extended UpdateSupport, and Red Hat Enterprise Linux 7.7 Update Services for SAPSolutions.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory update httpd important red hat enterprise web server ssrf

Relevant Releases Architectures

Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server AUS (v. 7.2) - noarch, x86_64

Red Hat Enterprise Linux Server AUS (v. 7.3) - noarch, x86_64

Red Hat Enterprise Linux Server AUS (v. 7.4) - noarch, x86_64

Red Hat Enterprise Linux Server AUS (v. 7.6) - noarch, x86_64

Red Hat Enterprise Linux Server AUS (v. 7.7) - noarch, x86_64

Red Hat Enterprise Linux Server E4S (v. 7.6) - noarch, ppc64le, x86_64

Red Hat Enterprise Linux Server E4S (v. 7.7) - noarch, ppc64le, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.6) - x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.7) - x86_64

Red Hat Enterprise Linux Server Optional E4S (v. 7.6) - ppc64le, x86_64

Red Hat Enterprise Linux Server Optional TUS (v. 7.6) - x86_64

Red Hat Enterprise Linux Server Optional TUS (v. 7.7) - x86_64

Red Hat Enterprise Linux Server TUS (v. 7.6) - noarch, x86_64

Red Hat Enterprise Linux Server TUS (v. 7.7) - noarch, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

2005117 - CVE-2021-40438 httpd: mod_proxy: SSRF via a crafted request uri-path containing "unix:"

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