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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: httpd:2.4 security, bug fix, and enhancement update
Advisory ID: RHSA-2020:4751-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4751
Issue date: 2020-11-03
CVE Names: CVE-2018-17189 CVE-2019-0196 CVE-2019-0197
CVE-2019-10081 CVE-2019-10082 CVE-2019-10092
CVE-2019-10097 CVE-2019-10098 CVE-2020-1927
CVE-2020-1934
=====================================================================

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.

The following packages have been upgraded to a later upstream version:
mod_http2 (1.15.7). (BZ#1814236)

Security Fix(es):

* httpd: memory corruption on early pushes (CVE-2019-10081)

* httpd: read-after-free in h2 connection shutdown (CVE-2019-10082)

* httpd: null-pointer dereference in mod_remoteip (CVE-2019-10097)

* httpd: mod_rewrite configurations vulnerable to open redirect
(CVE-2020-1927)

* httpd: mod_http2: DoS via slow, unneeded request bodies (CVE-2018-17189)

* httpd: mod_http2: read-after-free on a string compare (CVE-2019-0196)

* httpd: mod_http2: possible crash on late upgrade (CVE-2019-0197)

* httpd: limited cross-site scripting in mod_proxy error page
(CVE-2019-10092)

* httpd: mod_rewrite potential open redirect (CVE-2019-10098)

* httpd: mod_proxy_ftp use of uninitialized value (CVE-2020-1934)

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 8.3 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/):

1209162 – RFE: CustomLog should be able to use journald
1668497 – CVE-2018-17189 httpd: mod_http2: DoS via slow, unneeded request bodies
1695030 – CVE-2019-0196 httpd: mod_http2: read-after-free on a string compare
1695042 – CVE-2019-0197 httpd: mod_http2: possible crash on late upgrade
1743956 – CVE-2019-10092 httpd: limited cross-site scripting in mod_proxy error page
1743959 – CVE-2019-10098 httpd: mod_rewrite potential open redirect
1743966 – CVE-2019-10081 httpd: memory corruption on early pushes
1743974 – CVE-2019-10082 httpd: read-after-free in h2 connection shutdown
1743996 – CVE-2019-10097 httpd: null-pointer dereference in mod_remoteip
1771847 – BalancerMember ping parameter for mod_proxy_http doesn’t work
1814236 – RFE: mod_http2 rebase
1820761 – CVE-2020-1927 httpd: mod_rewrite configurations vulnerable to open redirect
1820772 – CVE-2020-1934 httpd: mod_proxy_ftp use of uninitialized value
1832844 – mod_md does not work with ACME server that does not provide keyChange or revokeCert resources

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
httpd-2.4.37-30.module+el8.3.0+7001+0766b9e7.src.rpm
mod_http2-1.15.7-2.module+el8.3.0+7670+8bf57d29.src.rpm
mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611.src.rpm

aarch64:
httpd-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
httpd-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
httpd-debugsource-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
httpd-devel-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
httpd-tools-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
httpd-tools-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
mod_http2-1.15.7-2.module+el8.3.0+7670+8bf57d29.aarch64.rpm
mod_http2-debuginfo-1.15.7-2.module+el8.3.0+7670+8bf57d29.aarch64.rpm
mod_http2-debugsource-1.15.7-2.module+el8.3.0+7670+8bf57d29.aarch64.rpm
mod_ldap-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
mod_ldap-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.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-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
mod_proxy_html-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
mod_session-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
mod_session-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
mod_ssl-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm
mod_ssl-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.aarch64.rpm

noarch:
httpd-filesystem-2.4.37-30.module+el8.3.0+7001+0766b9e7.noarch.rpm
httpd-manual-2.4.37-30.module+el8.3.0+7001+0766b9e7.noarch.rpm

ppc64le:
httpd-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
httpd-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
httpd-debugsource-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
httpd-devel-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
httpd-tools-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
httpd-tools-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
mod_http2-1.15.7-2.module+el8.3.0+7670+8bf57d29.ppc64le.rpm
mod_http2-debuginfo-1.15.7-2.module+el8.3.0+7670+8bf57d29.ppc64le.rpm
mod_http2-debugsource-1.15.7-2.module+el8.3.0+7670+8bf57d29.ppc64le.rpm
mod_ldap-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
mod_ldap-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.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-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
mod_proxy_html-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
mod_session-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
mod_session-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
mod_ssl-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm
mod_ssl-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.ppc64le.rpm

s390x:
httpd-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
httpd-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
httpd-debugsource-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
httpd-devel-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
httpd-tools-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
httpd-tools-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
mod_http2-1.15.7-2.module+el8.3.0+7670+8bf57d29.s390x.rpm
mod_http2-debuginfo-1.15.7-2.module+el8.3.0+7670+8bf57d29.s390x.rpm
mod_http2-debugsource-1.15.7-2.module+el8.3.0+7670+8bf57d29.s390x.rpm
mod_ldap-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
mod_ldap-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.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-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
mod_proxy_html-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
mod_session-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
mod_session-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
mod_ssl-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm
mod_ssl-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.s390x.rpm

x86_64:
httpd-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
httpd-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
httpd-debugsource-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
httpd-devel-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
httpd-tools-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
httpd-tools-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
mod_http2-1.15.7-2.module+el8.3.0+7670+8bf57d29.x86_64.rpm
mod_http2-debuginfo-1.15.7-2.module+el8.3.0+7670+8bf57d29.x86_64.rpm
mod_http2-debugsource-1.15.7-2.module+el8.3.0+7670+8bf57d29.x86_64.rpm
mod_ldap-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
mod_ldap-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.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-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
mod_proxy_html-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
mod_session-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
mod_session-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
mod_ssl-2.4.37-30.module+el8.3.0+7001+0766b9e7.x86_64.rpm
mod_ssl-debuginfo-2.4.37-30.module+el8.3.0+7001+0766b9e7.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-2018-17189
https://access.redhat.com/security/cve/CVE-2019-0196
https://access.redhat.com/security/cve/CVE-2019-0197
https://access.redhat.com/security/cve/CVE-2019-10081
https://access.redhat.com/security/cve/CVE-2019-10082
https://access.redhat.com/security/cve/CVE-2019-10092
https://access.redhat.com/security/cve/CVE-2019-10097
https://access.redhat.com/security/cve/CVE-2019-10098
https://access.redhat.com/security/cve/CVE-2020-1927
https://access.redhat.com/security/cve/CVE-2020-1934
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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