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

Synopsis:          Low: httpd security, bug fix, and enhancement update
Advisory ID:       RHSA-2013:0512-02
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-0512.html
Issue date:        2013-02-21
CVE Names:         CVE-2008-0455 CVE-2012-2687 CVE-2012-4557 
=====================================================================

1. Summary:

Updated httpd packages that fix two security issues, several bugs, and add
various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links 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 contain the Apache HTTP Server (httpd), which is the
namesake project of The Apache Software Foundation.

An input sanitization flaw was found in the mod_negotiation Apache HTTP
Server module. A remote attacker able to upload or create files with
arbitrary names in a directory that has the MultiViews options enabled,
could use this flaw to conduct cross-site scripting attacks against users
visiting the site. (CVE-2008-0455, CVE-2012-2687)

It was discovered that mod_proxy_ajp, when used in configurations with
mod_proxy in load balancer mode, would mark a back-end server as failed
when request processing timed out, even when a previous AJP (Apache JServ
Protocol) CPing request was responded to by the back-end. A remote
attacker able to make a back-end use an excessive amount of time to
process a request could cause mod_proxy to not send requests to back-end
AJP servers for the retry timeout period or until all back-end servers
were marked as failed. (CVE-2012-4557)

These updated httpd packages include numerous bug fixes and enhancements.
Space precludes documenting all of these changes in this advisory. Users
are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked
to in the References, for information on the most significant of these
changes.

All users of httpd are advised to upgrade to these updated packages, which
contain backported patches to correct these issues and add these
enhancements. After installing the updated packages, the httpd daemon will
be restarted automatically.

4. Solution:

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

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

757735 - [RFE] httpd's rotatelogs needs a way to rotate files into a custom location
757739 - [RFE] rotatelogs needs to create files even if they are empty
805720 - Only a single interface is available for SSL
805810 - init script for htcacheclean is missing
828896 - mod_authnz_ldap unable to set environment variables for authorize only
829689 - mod_ldap: fix occasional 500 Internal Server Error
842376 - httpd fails in processing chunked requests with > 31 bytes chunk-size / -extension line
848954 - Putting private key first in SSLProxyMachineCertificateFile causes segfault
850794 - CVE-2012-2687 CVE-2008-0455 httpd: mod_negotiation XSS via untrusted file names in directories with MultiViews enabled
867745 - mod_ssl post install script can cause failures
868283 - mod_cache regression in httpd 2.2.3-65: non-cacheable 304 responses serve bad data
871685 - CVE-2012-4557 httpd: mod_proxy_ajp worker moved to error state when timeout exceeded
876923 - "if" condition always true - detected by Coverity

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/httpd-2.2.15-26.el6.src.rpm

i386:
httpd-2.2.15-26.el6.i686.rpm
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-tools-2.2.15-26.el6.i686.rpm

x86_64:
httpd-2.2.15-26.el6.x86_64.rpm
httpd-debuginfo-2.2.15-26.el6.x86_64.rpm
httpd-tools-2.2.15-26.el6.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/httpd-2.2.15-26.el6.src.rpm

i386:
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-devel-2.2.15-26.el6.i686.rpm
mod_ssl-2.2.15-26.el6.i686.rpm

noarch:
httpd-manual-2.2.15-26.el6.noarch.rpm

x86_64:
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-debuginfo-2.2.15-26.el6.x86_64.rpm
httpd-devel-2.2.15-26.el6.i686.rpm
httpd-devel-2.2.15-26.el6.x86_64.rpm
mod_ssl-2.2.15-26.el6.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/httpd-2.2.15-26.el6.src.rpm

x86_64:
httpd-2.2.15-26.el6.x86_64.rpm
httpd-debuginfo-2.2.15-26.el6.x86_64.rpm
httpd-tools-2.2.15-26.el6.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/httpd-2.2.15-26.el6.src.rpm

noarch:
httpd-manual-2.2.15-26.el6.noarch.rpm

x86_64:
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-debuginfo-2.2.15-26.el6.x86_64.rpm
httpd-devel-2.2.15-26.el6.i686.rpm
httpd-devel-2.2.15-26.el6.x86_64.rpm
mod_ssl-2.2.15-26.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/httpd-2.2.15-26.el6.src.rpm

i386:
httpd-2.2.15-26.el6.i686.rpm
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-devel-2.2.15-26.el6.i686.rpm
httpd-tools-2.2.15-26.el6.i686.rpm
mod_ssl-2.2.15-26.el6.i686.rpm

noarch:
httpd-manual-2.2.15-26.el6.noarch.rpm

ppc64:
httpd-2.2.15-26.el6.ppc64.rpm
httpd-debuginfo-2.2.15-26.el6.ppc.rpm
httpd-debuginfo-2.2.15-26.el6.ppc64.rpm
httpd-devel-2.2.15-26.el6.ppc.rpm
httpd-devel-2.2.15-26.el6.ppc64.rpm
httpd-tools-2.2.15-26.el6.ppc64.rpm
mod_ssl-2.2.15-26.el6.ppc64.rpm

s390x:
httpd-2.2.15-26.el6.s390x.rpm
httpd-debuginfo-2.2.15-26.el6.s390.rpm
httpd-debuginfo-2.2.15-26.el6.s390x.rpm
httpd-devel-2.2.15-26.el6.s390.rpm
httpd-devel-2.2.15-26.el6.s390x.rpm
httpd-tools-2.2.15-26.el6.s390x.rpm
mod_ssl-2.2.15-26.el6.s390x.rpm

x86_64:
httpd-2.2.15-26.el6.x86_64.rpm
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-debuginfo-2.2.15-26.el6.x86_64.rpm
httpd-devel-2.2.15-26.el6.i686.rpm
httpd-devel-2.2.15-26.el6.x86_64.rpm
httpd-tools-2.2.15-26.el6.x86_64.rpm
mod_ssl-2.2.15-26.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/httpd-2.2.15-26.el6.src.rpm

i386:
httpd-2.2.15-26.el6.i686.rpm
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-devel-2.2.15-26.el6.i686.rpm
httpd-tools-2.2.15-26.el6.i686.rpm
mod_ssl-2.2.15-26.el6.i686.rpm

noarch:
httpd-manual-2.2.15-26.el6.noarch.rpm

x86_64:
httpd-2.2.15-26.el6.x86_64.rpm
httpd-debuginfo-2.2.15-26.el6.i686.rpm
httpd-debuginfo-2.2.15-26.el6.x86_64.rpm
httpd-devel-2.2.15-26.el6.i686.rpm
httpd-devel-2.2.15-26.el6.x86_64.rpm
httpd-tools-2.2.15-26.el6.x86_64.rpm
mod_ssl-2.2.15-26.el6.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/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2008-0455.html
https://www.redhat.com/security/data/cve/CVE-2012-2687.html
https://www.redhat.com/security/data/cve/CVE-2012-4557.html
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.4_Technical_Notes/httpd.html

8. Contact:

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

Copyright 2013 Red Hat, Inc.
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