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