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Red Hat Security Advisory
Synopsis: Important: httpd security update
Advisory ID: RHSA-2016:1421-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:1421
Issue date: 2016-07-18
CVE Names: CVE-2016-5387
=====================================================================
1. Summary:
An update for httpd is now available for Red Hat Enterprise Linux 5 and Red
Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security impact
of Important. 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 (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, noarch, x86_64
Red Hat Enterprise Linux Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64
3. Description:
The httpd packages provide the Apache HTTP Server, a powerful, efficient,
and extensible web server.
Security Fix(es):
* It was discovered that httpd used the value of the Proxy header from HTTP
requests to initialize the HTTP_PROXY environment variable for CGI scripts,
which in turn was incorrectly used by certain HTTP client implementations
to configure the proxy for outgoing HTTP requests. A remote attacker could
possibly use this flaw to redirect HTTP requests performed by a CGI script
to an attacker-controlled proxy via a malicious HTTP request.
(CVE-2016-5387)
Note: After this update, httpd will no longer pass the value of the Proxy
request header to scripts via the HTTP_PROXY environment variable.
Red Hat would like to thank Scott Geary (VendHQ) 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/):
1353755 - CVE-2016-5387 Apache HTTPD: sets environmental variable based on user supplied Proxy request header
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
httpd-2.2.3-92.el5_11.src.rpm
i386:
httpd-2.2.3-92.el5_11.i386.rpm
httpd-debuginfo-2.2.3-92.el5_11.i386.rpm
mod_ssl-2.2.3-92.el5_11.i386.rpm
x86_64:
httpd-2.2.3-92.el5_11.x86_64.rpm
httpd-debuginfo-2.2.3-92.el5_11.x86_64.rpm
mod_ssl-2.2.3-92.el5_11.x86_64.rpm
Red Hat Enterprise Linux Desktop Workstation (v. 5 client):
Source:
httpd-2.2.3-92.el5_11.src.rpm
i386:
httpd-debuginfo-2.2.3-92.el5_11.i386.rpm
httpd-devel-2.2.3-92.el5_11.i386.rpm
httpd-manual-2.2.3-92.el5_11.i386.rpm
x86_64:
httpd-debuginfo-2.2.3-92.el5_11.i386.rpm
httpd-debuginfo-2.2.3-92.el5_11.x86_64.rpm
httpd-devel-2.2.3-92.el5_11.i386.rpm
httpd-devel-2.2.3-92.el5_11.x86_64.rpm
httpd-manual-2.2.3-92.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
httpd-2.2.3-92.el5_11.src.rpm
i386:
httpd-2.2.3-92.el5_11.i386.rpm
httpd-debuginfo-2.2.3-92.el5_11.i386.rpm
httpd-devel-2.2.3-92.el5_11.i386.rpm
httpd-manual-2.2.3-92.el5_11.i386.rpm
mod_ssl-2.2.3-92.el5_11.i386.rpm
ia64:
httpd-2.2.3-92.el5_11.ia64.rpm
httpd-debuginfo-2.2.3-92.el5_11.ia64.rpm
httpd-devel-2.2.3-92.el5_11.ia64.rpm
httpd-manual-2.2.3-92.el5_11.ia64.rpm
mod_ssl-2.2.3-92.el5_11.ia64.rpm
ppc:
httpd-2.2.3-92.el5_11.ppc.rpm
httpd-debuginfo-2.2.3-92.el5_11.ppc.rpm
httpd-debuginfo-2.2.3-92.el5_11.ppc64.rpm
httpd-devel-2.2.3-92.el5_11.ppc.rpm
httpd-devel-2.2.3-92.el5_11.ppc64.rpm
httpd-manual-2.2.3-92.el5_11.ppc.rpm
mod_ssl-2.2.3-92.el5_11.ppc.rpm
s390x:
httpd-2.2.3-92.el5_11.s390x.rpm
httpd-debuginfo-2.2.3-92.el5_11.s390.rpm
httpd-debuginfo-2.2.3-92.el5_11.s390x.rpm
httpd-devel-2.2.3-92.el5_11.s390.rpm
httpd-devel-2.2.3-92.el5_11.s390x.rpm
httpd-manual-2.2.3-92.el5_11.s390x.rpm
mod_ssl-2.2.3-92.el5_11.s390x.rpm
x86_64:
httpd-2.2.3-92.el5_11.x86_64.rpm
httpd-debuginfo-2.2.3-92.el5_11.i386.rpm
httpd-debuginfo-2.2.3-92.el5_11.x86_64.rpm
httpd-devel-2.2.3-92.el5_11.i386.rpm
httpd-devel-2.2.3-92.el5_11.x86_64.rpm
httpd-manual-2.2.3-92.el5_11.x86_64.rpm
mod_ssl-2.2.3-92.el5_11.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source:
httpd-2.2.15-54.el6_8.src.rpm
i386:
httpd-2.2.15-54.el6_8.i686.rpm
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-tools-2.2.15-54.el6_8.i686.rpm
x86_64:
httpd-2.2.15-54.el6_8.x86_64.rpm
httpd-debuginfo-2.2.15-54.el6_8.x86_64.rpm
httpd-tools-2.2.15-54.el6_8.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386:
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-devel-2.2.15-54.el6_8.i686.rpm
mod_ssl-2.2.15-54.el6_8.i686.rpm
noarch:
httpd-manual-2.2.15-54.el6_8.noarch.rpm
x86_64:
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-debuginfo-2.2.15-54.el6_8.x86_64.rpm
httpd-devel-2.2.15-54.el6_8.i686.rpm
httpd-devel-2.2.15-54.el6_8.x86_64.rpm
mod_ssl-2.2.15-54.el6_8.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
httpd-2.2.15-54.el6_8.src.rpm
x86_64:
httpd-2.2.15-54.el6_8.x86_64.rpm
httpd-debuginfo-2.2.15-54.el6_8.x86_64.rpm
httpd-tools-2.2.15-54.el6_8.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
noarch:
httpd-manual-2.2.15-54.el6_8.noarch.rpm
x86_64:
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-debuginfo-2.2.15-54.el6_8.x86_64.rpm
httpd-devel-2.2.15-54.el6_8.i686.rpm
httpd-devel-2.2.15-54.el6_8.x86_64.rpm
mod_ssl-2.2.15-54.el6_8.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
httpd-2.2.15-54.el6_8.src.rpm
i386:
httpd-2.2.15-54.el6_8.i686.rpm
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-devel-2.2.15-54.el6_8.i686.rpm
httpd-tools-2.2.15-54.el6_8.i686.rpm
mod_ssl-2.2.15-54.el6_8.i686.rpm
noarch:
httpd-manual-2.2.15-54.el6_8.noarch.rpm
ppc64:
httpd-2.2.15-54.el6_8.ppc64.rpm
httpd-debuginfo-2.2.15-54.el6_8.ppc.rpm
httpd-debuginfo-2.2.15-54.el6_8.ppc64.rpm
httpd-devel-2.2.15-54.el6_8.ppc.rpm
httpd-devel-2.2.15-54.el6_8.ppc64.rpm
httpd-tools-2.2.15-54.el6_8.ppc64.rpm
mod_ssl-2.2.15-54.el6_8.ppc64.rpm
s390x:
httpd-2.2.15-54.el6_8.s390x.rpm
httpd-debuginfo-2.2.15-54.el6_8.s390.rpm
httpd-debuginfo-2.2.15-54.el6_8.s390x.rpm
httpd-devel-2.2.15-54.el6_8.s390.rpm
httpd-devel-2.2.15-54.el6_8.s390x.rpm
httpd-tools-2.2.15-54.el6_8.s390x.rpm
mod_ssl-2.2.15-54.el6_8.s390x.rpm
x86_64:
httpd-2.2.15-54.el6_8.x86_64.rpm
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-debuginfo-2.2.15-54.el6_8.x86_64.rpm
httpd-devel-2.2.15-54.el6_8.i686.rpm
httpd-devel-2.2.15-54.el6_8.x86_64.rpm
httpd-tools-2.2.15-54.el6_8.x86_64.rpm
mod_ssl-2.2.15-54.el6_8.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
httpd-2.2.15-54.el6_8.src.rpm
i386:
httpd-2.2.15-54.el6_8.i686.rpm
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-devel-2.2.15-54.el6_8.i686.rpm
httpd-tools-2.2.15-54.el6_8.i686.rpm
mod_ssl-2.2.15-54.el6_8.i686.rpm
noarch:
httpd-manual-2.2.15-54.el6_8.noarch.rpm
x86_64:
httpd-2.2.15-54.el6_8.x86_64.rpm
httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
httpd-debuginfo-2.2.15-54.el6_8.x86_64.rpm
httpd-devel-2.2.15-54.el6_8.i686.rpm
httpd-devel-2.2.15-54.el6_8.x86_64.rpm
httpd-tools-2.2.15-54.el6_8.x86_64.rpm
mod_ssl-2.2.15-54.el6_8.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-2016-5387
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/httpoxy
https://access.redhat.com/solutions/2435501
8. Contact:
The Red Hat security contact is <[email protected]>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc.
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