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Red Hat Security Advisory 2015-1668-01

Red Hat Security Advisory 2015-1668-01
Posted Aug 24, 2015
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2015-1668-01 - 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. 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.

tags | advisory, remote, web
systems | linux, redhat
advisories | CVE-2015-3183
SHA-256 | 9dd5f07e7506c6bdca39972af899a077f6c01994adbef396b1168dfcf44aceb8

Red Hat Security Advisory 2015-1668-01

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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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