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

Synopsis:          Moderate: httpd security update
Advisory ID:       RHSA-2015:1668-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2015-1668.html
Issue date:        2015-08-24
CVE Names:         CVE-2015-3183 
=====================================================================

1. Summary:

Updated httpd packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

2. Relevant releases/architectures:

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 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.

Multiple flaws were found in the way httpd parsed HTTP requests and
responses using chunked transfer encoding. A remote attacker could use
these flaws to create a specially crafted request, which httpd would decode
differently from an HTTP proxy software in front of it, possibly leading to
HTTP request smuggling attacks. (CVE-2015-3183)

All httpd users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
updated packages, the httpd service will be restarted automatically.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1243887 - CVE-2015-3183 httpd: HTTP request smuggling attack against chunked request parser

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
httpd-2.2.15-47.el6_7.src.rpm

i386:
httpd-2.2.15-47.el6_7.i686.rpm
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-tools-2.2.15-47.el6_7.i686.rpm

x86_64:
httpd-2.2.15-47.el6_7.x86_64.rpm
httpd-debuginfo-2.2.15-47.el6_7.x86_64.rpm
httpd-tools-2.2.15-47.el6_7.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

i386:
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-devel-2.2.15-47.el6_7.i686.rpm
mod_ssl-2.2.15-47.el6_7.i686.rpm

noarch:
httpd-manual-2.2.15-47.el6_7.noarch.rpm

x86_64:
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-debuginfo-2.2.15-47.el6_7.x86_64.rpm
httpd-devel-2.2.15-47.el6_7.i686.rpm
httpd-devel-2.2.15-47.el6_7.x86_64.rpm
mod_ssl-2.2.15-47.el6_7.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
httpd-2.2.15-47.el6_7.src.rpm

x86_64:
httpd-2.2.15-47.el6_7.x86_64.rpm
httpd-debuginfo-2.2.15-47.el6_7.x86_64.rpm
httpd-tools-2.2.15-47.el6_7.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

noarch:
httpd-manual-2.2.15-47.el6_7.noarch.rpm

x86_64:
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-debuginfo-2.2.15-47.el6_7.x86_64.rpm
httpd-devel-2.2.15-47.el6_7.i686.rpm
httpd-devel-2.2.15-47.el6_7.x86_64.rpm
mod_ssl-2.2.15-47.el6_7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
httpd-2.2.15-47.el6_7.src.rpm

i386:
httpd-2.2.15-47.el6_7.i686.rpm
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-devel-2.2.15-47.el6_7.i686.rpm
httpd-tools-2.2.15-47.el6_7.i686.rpm
mod_ssl-2.2.15-47.el6_7.i686.rpm

noarch:
httpd-manual-2.2.15-47.el6_7.noarch.rpm

ppc64:
httpd-2.2.15-47.el6_7.ppc64.rpm
httpd-debuginfo-2.2.15-47.el6_7.ppc.rpm
httpd-debuginfo-2.2.15-47.el6_7.ppc64.rpm
httpd-devel-2.2.15-47.el6_7.ppc.rpm
httpd-devel-2.2.15-47.el6_7.ppc64.rpm
httpd-tools-2.2.15-47.el6_7.ppc64.rpm
mod_ssl-2.2.15-47.el6_7.ppc64.rpm

s390x:
httpd-2.2.15-47.el6_7.s390x.rpm
httpd-debuginfo-2.2.15-47.el6_7.s390.rpm
httpd-debuginfo-2.2.15-47.el6_7.s390x.rpm
httpd-devel-2.2.15-47.el6_7.s390.rpm
httpd-devel-2.2.15-47.el6_7.s390x.rpm
httpd-tools-2.2.15-47.el6_7.s390x.rpm
mod_ssl-2.2.15-47.el6_7.s390x.rpm

x86_64:
httpd-2.2.15-47.el6_7.x86_64.rpm
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-debuginfo-2.2.15-47.el6_7.x86_64.rpm
httpd-devel-2.2.15-47.el6_7.i686.rpm
httpd-devel-2.2.15-47.el6_7.x86_64.rpm
httpd-tools-2.2.15-47.el6_7.x86_64.rpm
mod_ssl-2.2.15-47.el6_7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
httpd-2.2.15-47.el6_7.src.rpm

i386:
httpd-2.2.15-47.el6_7.i686.rpm
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-devel-2.2.15-47.el6_7.i686.rpm
httpd-tools-2.2.15-47.el6_7.i686.rpm
mod_ssl-2.2.15-47.el6_7.i686.rpm

noarch:
httpd-manual-2.2.15-47.el6_7.noarch.rpm

x86_64:
httpd-2.2.15-47.el6_7.x86_64.rpm
httpd-debuginfo-2.2.15-47.el6_7.i686.rpm
httpd-debuginfo-2.2.15-47.el6_7.x86_64.rpm
httpd-devel-2.2.15-47.el6_7.i686.rpm
httpd-devel-2.2.15-47.el6_7.x86_64.rpm
httpd-tools-2.2.15-47.el6_7.x86_64.rpm
mod_ssl-2.2.15-47.el6_7.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-2015-3183
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 2015 Red Hat, Inc.
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