Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2017.2558
Moderate: httpd security update
12 October 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: httpd
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-9798
Reference: ESB-2017.2513
ESB-2017.2384
ESB-2017.2369
Original Bulletin:
https://access.redhat.com/errata/RHSA-2017:2882
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Red Hat Security Advisory
Synopsis: Moderate: httpd security update
Advisory ID: RHSA-2017:2882-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2882
Issue date: 2017-10-11
CVE Names: CVE-2017-9798
=====================================================================
1. Summary:
An update for httpd is now available for Red Hat Enterprise Linux 7.
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 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) - aarch64, noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
The httpd packages provide the Apache HTTP Server, a powerful, efficient,
and extensible web server.
Security Fix(es):
* A use-after-free flaw was found in the way httpd handled invalid and
previously unregistered HTTP methods specified in the Limit directive used
in an .htaccess file. A remote attacker could possibly use this flaw to
disclose portions of the server memory, or cause httpd child process to
crash. (CVE-2017-9798)
Red Hat would like to thank Hanno Back for reporting this issue.
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/):
1490344 - CVE-2017-9798 httpd: Use-after-free by limiting unregistered HTTP method (Optionsbleed)
6. Package List:
Red Hat Enterprise Linux Client Optional (v. 7):
Source:
httpd-2.4.6-67.el7_4.5.src.rpm
noarch:
httpd-manual-2.4.6-67.el7_4.5.noarch.rpm
x86_64:
httpd-2.4.6-67.el7_4.5.x86_64.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.x86_64.rpm
httpd-devel-2.4.6-67.el7_4.5.x86_64.rpm
httpd-tools-2.4.6-67.el7_4.5.x86_64.rpm
mod_ldap-2.4.6-67.el7_4.5.x86_64.rpm
mod_proxy_html-2.4.6-67.el7_4.5.x86_64.rpm
mod_session-2.4.6-67.el7_4.5.x86_64.rpm
mod_ssl-2.4.6-67.el7_4.5.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source:
httpd-2.4.6-67.el7_4.5.src.rpm
noarch:
httpd-manual-2.4.6-67.el7_4.5.noarch.rpm
x86_64:
httpd-2.4.6-67.el7_4.5.x86_64.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.x86_64.rpm
httpd-devel-2.4.6-67.el7_4.5.x86_64.rpm
httpd-tools-2.4.6-67.el7_4.5.x86_64.rpm
mod_ldap-2.4.6-67.el7_4.5.x86_64.rpm
mod_proxy_html-2.4.6-67.el7_4.5.x86_64.rpm
mod_session-2.4.6-67.el7_4.5.x86_64.rpm
mod_ssl-2.4.6-67.el7_4.5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
httpd-2.4.6-67.el7_4.5.src.rpm
aarch64:
httpd-2.4.6-67.el7_4.5.aarch64.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.aarch64.rpm
httpd-devel-2.4.6-67.el7_4.5.aarch64.rpm
httpd-tools-2.4.6-67.el7_4.5.aarch64.rpm
mod_session-2.4.6-67.el7_4.5.aarch64.rpm
mod_ssl-2.4.6-67.el7_4.5.aarch64.rpm
noarch:
httpd-manual-2.4.6-67.el7_4.5.noarch.rpm
ppc64:
httpd-2.4.6-67.el7_4.5.ppc64.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.ppc64.rpm
httpd-devel-2.4.6-67.el7_4.5.ppc64.rpm
httpd-tools-2.4.6-67.el7_4.5.ppc64.rpm
mod_session-2.4.6-67.el7_4.5.ppc64.rpm
mod_ssl-2.4.6-67.el7_4.5.ppc64.rpm
ppc64le:
httpd-2.4.6-67.el7_4.5.ppc64le.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.ppc64le.rpm
httpd-devel-2.4.6-67.el7_4.5.ppc64le.rpm
httpd-tools-2.4.6-67.el7_4.5.ppc64le.rpm
mod_session-2.4.6-67.el7_4.5.ppc64le.rpm
mod_ssl-2.4.6-67.el7_4.5.ppc64le.rpm
s390x:
httpd-2.4.6-67.el7_4.5.s390x.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.s390x.rpm
httpd-devel-2.4.6-67.el7_4.5.s390x.rpm
httpd-tools-2.4.6-67.el7_4.5.s390x.rpm
mod_session-2.4.6-67.el7_4.5.s390x.rpm
mod_ssl-2.4.6-67.el7_4.5.s390x.rpm
x86_64:
httpd-2.4.6-67.el7_4.5.x86_64.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.x86_64.rpm
httpd-devel-2.4.6-67.el7_4.5.x86_64.rpm
httpd-tools-2.4.6-67.el7_4.5.x86_64.rpm
mod_session-2.4.6-67.el7_4.5.x86_64.rpm
mod_ssl-2.4.6-67.el7_4.5.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
aarch64:
httpd-debuginfo-2.4.6-67.el7_4.5.aarch64.rpm
mod_ldap-2.4.6-67.el7_4.5.aarch64.rpm
mod_proxy_html-2.4.6-67.el7_4.5.aarch64.rpm
ppc64:
httpd-debuginfo-2.4.6-67.el7_4.5.ppc64.rpm
mod_ldap-2.4.6-67.el7_4.5.ppc64.rpm
mod_proxy_html-2.4.6-67.el7_4.5.ppc64.rpm
ppc64le:
httpd-debuginfo-2.4.6-67.el7_4.5.ppc64le.rpm
mod_ldap-2.4.6-67.el7_4.5.ppc64le.rpm
mod_proxy_html-2.4.6-67.el7_4.5.ppc64le.rpm
s390x:
httpd-debuginfo-2.4.6-67.el7_4.5.s390x.rpm
mod_ldap-2.4.6-67.el7_4.5.s390x.rpm
mod_proxy_html-2.4.6-67.el7_4.5.s390x.rpm
x86_64:
httpd-debuginfo-2.4.6-67.el7_4.5.x86_64.rpm
mod_ldap-2.4.6-67.el7_4.5.x86_64.rpm
mod_proxy_html-2.4.6-67.el7_4.5.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
httpd-2.4.6-67.el7_4.5.src.rpm
noarch:
httpd-manual-2.4.6-67.el7_4.5.noarch.rpm
x86_64:
httpd-2.4.6-67.el7_4.5.x86_64.rpm
httpd-debuginfo-2.4.6-67.el7_4.5.x86_64.rpm
httpd-devel-2.4.6-67.el7_4.5.x86_64.rpm
httpd-tools-2.4.6-67.el7_4.5.x86_64.rpm
mod_session-2.4.6-67.el7_4.5.x86_64.rpm
mod_ssl-2.4.6-67.el7_4.5.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
httpd-debuginfo-2.4.6-67.el7_4.5.x86_64.rpm
mod_ldap-2.4.6-67.el7_4.5.x86_64.rpm
mod_proxy_html-2.4.6-67.el7_4.5.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-2017-9798
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
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