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===================================================================== Red Hat Security Advisory
Synopsis: Moderate: httpd:2.4 security, bug fix, and enhancement update Advisory ID: RHSA-2021:1809-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1809 Issue date: 2021-05-18 CVE Names: CVE-2018-17199 CVE-2020-11984 CVE-2020-11993 =====================================================================
1. Summary:
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64
3. 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.
4. 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.
5. Bugs fixed (https://bugzilla.redhat.com/):
1651376 - centralizing default index.html for httpd 1668493 - CVE-2018-17199 httpd: mod_session_cookie does not respect expiry time 1680118 - unorderly connection close when client attempts renegotiation 1847585 - mod_ldap: High CPU usage at apr_ldap_rebind_remove() 1866563 - CVE-2020-11984 httpd: mod_proxy_uwsgi buffer overflow 1866564 - CVE-2020-11993 httpd: mod_http2 concurrent pool usage 1872828 - httpd: typo in htpasswd, contained in httpd-tools package 1875844 - mod_cgid takes CGIDScriptTimeout x 2 seconds for timeout 1891594 - only one url is displayed using "htcacheclean -p . -A" when there are >= 2 files in one subdirectory 1891829 - mod_proxy_hcheck Doesn't perform checks when in a balancer 1918741 - Thousands of /tmp/modproxy.tmp.* files created by apache
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source: httpd-2.4.37-39.module+el8.4.0+9658+b87b2deb.src.rpm mod_http2-1.15.7-3.module+el8.4.0+8625+d397f3da.src.rpm mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.src.rpm
aarch64: httpd-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm httpd-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm httpd-debugsource-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm httpd-devel-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm httpd-tools-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm httpd-tools-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_http2-1.15.7-3.module+el8.4.0+8625+d397f3da.aarch64.rpm mod_http2-debuginfo-1.15.7-3.module+el8.4.0+8625+d397f3da.aarch64.rpm mod_http2-debugsource-1.15.7-3.module+el8.4.0+8625+d397f3da.aarch64.rpm mod_ldap-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_ldap-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.aarch64.rpm mod_md-debuginfo-2.0.8-8.module+el8.3.0+6814+67d1e611.aarch64.rpm mod_md-debugsource-2.0.8-8.module+el8.3.0+6814+67d1e611.aarch64.rpm mod_proxy_html-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_proxy_html-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_session-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_session-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_ssl-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm mod_ssl-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.aarch64.rpm
noarch: httpd-filesystem-2.4.37-39.module+el8.4.0+9658+b87b2deb.noarch.rpm httpd-manual-2.4.37-39.module+el8.4.0+9658+b87b2deb.noarch.rpm
ppc64le: httpd-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm httpd-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm httpd-debugsource-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm httpd-devel-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm httpd-tools-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm httpd-tools-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_http2-1.15.7-3.module+el8.4.0+8625+d397f3da.ppc64le.rpm mod_http2-debuginfo-1.15.7-3.module+el8.4.0+8625+d397f3da.ppc64le.rpm mod_http2-debugsource-1.15.7-3.module+el8.4.0+8625+d397f3da.ppc64le.rpm mod_ldap-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_ldap-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.ppc64le.rpm mod_md-debuginfo-2.0.8-8.module+el8.3.0+6814+67d1e611.ppc64le.rpm mod_md-debugsource-2.0.8-8.module+el8.3.0+6814+67d1e611.ppc64le.rpm mod_proxy_html-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_proxy_html-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_session-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_session-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_ssl-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm mod_ssl-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.ppc64le.rpm
s390x: httpd-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm httpd-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm httpd-debugsource-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm httpd-devel-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm httpd-tools-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm httpd-tools-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_http2-1.15.7-3.module+el8.4.0+8625+d397f3da.s390x.rpm mod_http2-debuginfo-1.15.7-3.module+el8.4.0+8625+d397f3da.s390x.rpm mod_http2-debugsource-1.15.7-3.module+el8.4.0+8625+d397f3da.s390x.rpm mod_ldap-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_ldap-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.s390x.rpm mod_md-debuginfo-2.0.8-8.module+el8.3.0+6814+67d1e611.s390x.rpm mod_md-debugsource-2.0.8-8.module+el8.3.0+6814+67d1e611.s390x.rpm mod_proxy_html-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_proxy_html-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_session-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_session-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_ssl-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm mod_ssl-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.s390x.rpm
x86_64: httpd-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm httpd-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm httpd-debugsource-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm httpd-devel-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm httpd-tools-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm httpd-tools-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_http2-1.15.7-3.module+el8.4.0+8625+d397f3da.x86_64.rpm mod_http2-debuginfo-1.15.7-3.module+el8.4.0+8625+d397f3da.x86_64.rpm mod_http2-debugsource-1.15.7-3.module+el8.4.0+8625+d397f3da.x86_64.rpm mod_ldap-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_ldap-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.x86_64.rpm mod_md-debuginfo-2.0.8-8.module+el8.3.0+6814+67d1e611.x86_64.rpm mod_md-debugsource-2.0.8-8.module+el8.3.0+6814+67d1e611.x86_64.rpm mod_proxy_html-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_proxy_html-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_session-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_session-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_ssl-2.4.37-39.module+el8.4.0+9658+b87b2deb.x86_64.rpm mod_ssl-debuginfo-2.4.37-39.module+el8.4.0+9658+b87b2deb.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/
7. References:
https://access.redhat.com/security/cve/CVE-2018-17199 https://access.redhat.com/security/cve/CVE-2020-11984 https://access.redhat.com/security/cve/CVE-2020-11993 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
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