RedHat: RHSA-2021-3856:01 Important: httpd security update
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.
Summary
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.
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
Red Hat Enterprise Linux Server AUS (v. 7.3):
Source:
httpd-2.4.6-45.el7_3.6.src.rpm
noarch:
httpd-manual-2.4.6-45.el7_3.6.noarch.rpm
x86_64:
httpd-2.4.6-45.el7_3.6.x86_64.rpm
httpd-debuginfo-2.4.6-45.el7_3.6.x86_64.rpm
httpd-devel-2.4.6-45.el7_3.6.x86_64.rpm
httpd-tools-2.4.6-45.el7_3.6.x86_64.rpm
mod_ssl-2.4.6-45.el7_3.6.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 7.4):
Source:
httpd-2.4.6-67.el7_4.7.src.rpm
noarch:
httpd-manual-2.4.6-67.el7_4.7.noarch.rpm
x86_64:
httpd-2.4.6-67.el7_4.7.x86_64.rpm
httpd-debuginfo-2.4.6-67.el7_4.7.x86_64.rpm
httpd-devel-2.4.6-67.el7_4.7.x86_64.rpm
httpd-tools-2.4.6-67.el7_4.7.x86_64.rpm
mod_session-2.4.6-67.el7_4.7.x86_64.rpm
mod_ssl-2.4.6-67.el7_4.7.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 7.6):
Source:
httpd-2.4.6-89.el7_6.2.src.rpm
noarch:
httpd-manual-2.4.6-89.el7_6.2.noarch.rpm
x86_64:
httpd-2.4.6-89.el7_6.2.x86_64.rpm
httpd-debuginfo-2.4.6-89.el7_6.2.x86_64.rpm
httpd-devel-2.4.6-89.el7_6.2.x86_64.rpm
httpd-tools-2.4.6-89.el7_6.2.x86_64.rpm
mod_session-2.4.6-89.el7_6.2.x86_64.rpm
mod_ssl-2.4.6-89.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.6):
Source:
httpd-2.4.6-89.el7_6.2.src.rpm
noarch:
httpd-manual-2.4.6-89.el7_6.2.noarch.rpm
ppc64le:
httpd-2.4.6-89.el7_6.2.ppc64le.rpm
httpd-debuginfo-2.4.6-89.el7_6.2.ppc64le.rpm
httpd-devel-2.4.6-89.el7_6.2.ppc64le.rpm
httpd-tools-2.4.6-89.el7_6.2.ppc64le.rpm
mod_session-2.4.6-89.el7_6.2.ppc64le.rpm
mod_ssl-2.4.6-89.el7_6.2.ppc64le.rpm
x86_64:
httpd-2.4.6-89.el7_6.2.x86_64.rpm
httpd-debuginfo-2.4.6-89.el7_6.2.x86_64.rpm
httpd-devel-2.4.6-89.el7_6.2.x86_64.rpm
httpd-tools-2.4.6-89.el7_6.2.x86_64.rpm
mod_session-2.4.6-89.el7_6.2.x86_64.rpm
mod_ssl-2.4.6-89.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.6):
Source:
httpd-2.4.6-89.el7_6.2.src.rpm
noarch:
httpd-manual-2.4.6-89.el7_6.2.noarch.rpm
x86_64:
httpd-2.4.6-89.el7_6.2.x86_64.rpm
httpd-debuginfo-2.4.6-89.el7_6.2.x86_64.rpm
httpd-devel-2.4.6-89.el7_6.2.x86_64.rpm
httpd-tools-2.4.6-89.el7_6.2.x86_64.rpm
mod_session-2.4.6-89.el7_6.2.x86_64.rpm
mod_ssl-2.4.6-89.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux Server AUS (v. 7.7):
Source:
httpd-2.4.6-90.el7_7.1.src.rpm
noarch:
httpd-manual-2.4.6-90.el7_7.1.noarch.rpm
x86_64:
httpd-2.4.6-90.el7_7.1.x86_64.rpm
httpd-debuginfo-2.4.6-90.el7_7.1.x86_64.rpm
httpd-devel-2.4.6-90.el7_7.1.x86_64.rpm
httpd-tools-2.4.6-90.el7_7.1.x86_64.rpm
mod_session-2.4.6-90.el7_7.1.x86_64.rpm
mod_ssl-2.4.6-90.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.7):
Source:
httpd-2.4.6-90.el7_7.1.src.rpm
noarch:
httpd-manual-2.4.6-90.el7_7.1.noarch.rpm
ppc64le:
httpd-2.4.6-90.el7_7.1.ppc64le.rpm
httpd-debuginfo-2.4.6-90.el7_7.1.ppc64le.rpm
httpd-devel-2.4.6-90.el7_7.1.ppc64le.rpm
httpd-tools-2.4.6-90.el7_7.1.ppc64le.rpm
mod_session-2.4.6-90.el7_7.1.ppc64le.rpm
mod_ssl-2.4.6-90.el7_7.1.ppc64le.rpm
x86_64:
httpd-2.4.6-90.el7_7.1.x86_64.rpm
httpd-debuginfo-2.4.6-90.el7_7.1.x86_64.rpm
httpd-devel-2.4.6-90.el7_7.1.x86_64.rpm
httpd-tools-2.4.6-90.el7_7.1.x86_64.rpm
mod_session-2.4.6-90.el7_7.1.x86_64.rpm
mod_ssl-2.4.6-90.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.7):
Source:
httpd-2.4.6-90.el7_7.1.src.rpm
noarch:
httpd-manual-2.4.6-90.el7_7.1.noarch.rpm
x86_64:
httpd-2.4.6-90.el7_7.1.x86_64.rpm
httpd-debuginfo-2.4.6-90.el7_7.1.x86_64.rpm
httpd-devel-2.4.6-90.el7_7.1.x86_64.rpm
httpd-tools-2.4.6-90.el7_7.1.x86_64.rpm
mod_session-2.4.6-90.el7_7.1.x86_64.rpm
mod_ssl-2.4.6-90.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Server (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
ppc64:
httpd-2.4.6-97.el7_9.1.ppc64.rpm
httpd-debuginfo-2.4.6-97.el7_9.1.ppc64.rpm
httpd-devel-2.4.6-97.el7_9.1.ppc64.rpm
httpd-tools-2.4.6-97.el7_9.1.ppc64.rpm
mod_session-2.4.6-97.el7_9.1.ppc64.rpm
mod_ssl-2.4.6-97.el7_9.1.ppc64.rpm
ppc64le:
httpd-2.4.6-97.el7_9.1.ppc64le.rpm
httpd-debuginfo-2.4.6-97.el7_9.1.ppc64le.rpm
httpd-devel-2.4.6-97.el7_9.1.ppc64le.rpm
httpd-tools-2.4.6-97.el7_9.1.ppc64le.rpm
mod_session-2.4.6-97.el7_9.1.ppc64le.rpm
mod_ssl-2.4.6-97.el7_9.1.ppc64le.rpm
s390x:
httpd-2.4.6-97.el7_9.1.s390x.rpm
httpd-debuginfo-2.4.6-97.el7_9.1.s390x.rpm
httpd-devel-2.4.6-97.el7_9.1.s390x.rpm
httpd-tools-2.4.6-97.el7_9.1.s390x.rpm
mod_session-2.4.6-97.el7_9.1.s390x.rpm
mod_ssl-2.4.6-97.el7_9.1.s390x.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_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 Optional AUS (v. 7.2):
x86_64:
httpd-debuginfo-2.4.6-40.el7_2.7.x86_64.rpm
mod_ldap-2.4.6-40.el7_2.7.x86_64.rpm
mod_proxy_html-2.4.6-40.el7_2.7.x86_64.rpm
mod_session-2.4.6-40.el7_2.7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.3):
x86_64:
httpd-debuginfo-2.4.6-45.el7_3.6.x86_64.rpm
mod_ldap-2.4.6-45.el7_3.6.x86_64.rpm
mod_proxy_html-2.4.6-45.el7_3.6.x86_64.rpm
mod_session-2.4.6-45.el7_3.6.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.4):
x86_64:
httpd-debuginfo-2.4.6-67.el7_4.7.x86_64.rpm
mod_ldap-2.4.6-67.el7_4.7.x86_64.rpm
mod_proxy_html-2.4.6-67.el7_4.7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.6):
x86_64:
httpd-debuginfo-2.4.6-89.el7_6.2.x86_64.rpm
mod_ldap-2.4.6-89.el7_6.2.x86_64.rpm
mod_proxy_html-2.4.6-89.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.6):
ppc64le:
httpd-debuginfo-2.4.6-89.el7_6.2.ppc64le.rpm
mod_ldap-2.4.6-89.el7_6.2.ppc64le.rpm
mod_proxy_html-2.4.6-89.el7_6.2.ppc64le.rpm
x86_64:
httpd-debuginfo-2.4.6-89.el7_6.2.x86_64.rpm
mod_ldap-2.4.6-89.el7_6.2.x86_64.rpm
mod_proxy_html-2.4.6-89.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.6):
x86_64:
httpd-debuginfo-2.4.6-89.el7_6.2.x86_64.rpm
mod_ldap-2.4.6-89.el7_6.2.x86_64.rpm
mod_proxy_html-2.4.6-89.el7_6.2.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.7):
x86_64:
httpd-debuginfo-2.4.6-90.el7_7.1.x86_64.rpm
mod_ldap-2.4.6-90.el7_7.1.x86_64.rpm
mod_proxy_html-2.4.6-90.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.6):
ppc64le:
httpd-debuginfo-2.4.6-90.el7_7.1.ppc64le.rpm
mod_ldap-2.4.6-90.el7_7.1.ppc64le.rpm
mod_proxy_html-2.4.6-90.el7_7.1.ppc64le.rpm
x86_64:
httpd-debuginfo-2.4.6-90.el7_7.1.x86_64.rpm
mod_ldap-2.4.6-90.el7_7.1.x86_64.rpm
mod_proxy_html-2.4.6-90.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.7):
x86_64:
httpd-debuginfo-2.4.6-90.el7_7.1.x86_64.rpm
mod_ldap-2.4.6-90.el7_7.1.x86_64.rpm
mod_proxy_html-2.4.6-90.el7_7.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
httpd-debuginfo-2.4.6-97.el7_9.1.ppc64.rpm
mod_ldap-2.4.6-97.el7_9.1.ppc64.rpm
mod_proxy_html-2.4.6-97.el7_9.1.ppc64.rpm
ppc64le:
httpd-debuginfo-2.4.6-97.el7_9.1.ppc64le.rpm
mod_ldap-2.4.6-97.el7_9.1.ppc64le.rpm
mod_proxy_html-2.4.6-97.el7_9.1.ppc64le.rpm
s390x:
httpd-debuginfo-2.4.6-97.el7_9.1.s390x.rpm
mod_ldap-2.4.6-97.el7_9.1.s390x.rpm
mod_proxy_html-2.4.6-97.el7_9.1.s390x.rpm
x86_64:
httpd-debuginfo-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
Red Hat Enterprise Linux Workstation (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_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 Workstation Optional (v. 7):
x86_64:
httpd-debuginfo-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
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
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.
Topic
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:"