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Red Hat Enterprise Linux 6 RHSA-2012:0128-01 Moderate Httpd Security Fix

Redhat Large Esm H500
Updated httpd packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores,
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: httpd security update
Advisory ID:       RHSA-2012:0128-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2012:0128.html
Issue date:        2012-02-13
CVE Names:         CVE-2011-3607 CVE-2011-3639 CVE-2011-4317 
                   CVE-2012-0031 CVE-2012-0053 
====================================================================
1. Summary:

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

The Red Hat Security Response Team has rated this update as having moderate
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 Apache HTTP Server is a popular web server.

It was discovered that the fix for CVE-2011-3368 (released via
RHSA-2011:1391) did not completely address the problem. An attacker could
bypass the fix and make a reverse proxy connect to an arbitrary server not
directly accessible to the attacker by sending an HTTP version 0.9 request,
or by using a specially-crafted URI. (CVE-2011-3639, CVE-2011-4317)

The httpd server included the full HTTP header line in the default error
page generated when receiving an excessively long or malformed header.
Malicious JavaScript running in the server's domain context could use this
flaw to gain access to httpOnly cookies. (CVE-2012-0053)

An integer overflow flaw, leading to a heap-based buffer overflow, was
found in the way httpd performed substitutions in regular expressions. An
attacker able to set certain httpd settings, such as a user permitted to
override the httpd configuration for a specific directory using a
".htaccess" file, could use this flaw to crash the httpd child process or,
possibly, execute arbitrary code with the privileges of the "apache" user.
(CVE-2011-3607)

A flaw was found in the way httpd handled child process status information.
A malicious program running with httpd child process privileges (such as a
PHP or CGI script) could use this flaw to cause the parent httpd process to
crash during httpd service shutdown. (CVE-2012-0031)

All httpd users should upgrade to these updated packages, which contain
backported patches to correct these issues. 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/kb/docs/DOC-11259

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

752080 - CVE-2011-3639 httpd: http 0.9 request bypass of the reverse proxy vulnerability CVE-2011-3368 fix
756483 - CVE-2011-4317 httpd: uri scheme bypass of the reverse proxy vulnerability CVE-2011-3368 fix
769844 - CVE-2011-3607 httpd: ap_pregsub Integer overflow to buffer overflow
773744 - CVE-2012-0031 httpd: possible crash on shutdown due to flaw in scoreboard handling
785069 - CVE-2012-0053 httpd: cookie exposure due to error responses

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:

i386:
httpd-2.2.15-15.el6_2.1.i686.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-tools-2.2.15-15.el6_2.1.i686.rpm

x86_64:
httpd-2.2.15-15.el6_2.1.x86_64.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm
httpd-tools-2.2.15-15.el6_2.1.x86_64.rpm

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

Source:

i386:
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-devel-2.2.15-15.el6_2.1.i686.rpm
mod_ssl-2.2.15-15.el6_2.1.i686.rpm

noarch:
httpd-manual-2.2.15-15.el6_2.1.noarch.rpm

x86_64:
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm
httpd-devel-2.2.15-15.el6_2.1.i686.rpm
httpd-devel-2.2.15-15.el6_2.1.x86_64.rpm
mod_ssl-2.2.15-15.el6_2.1.x86_64.rpm

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

Source:

x86_64:
httpd-2.2.15-15.el6_2.1.x86_64.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm
httpd-tools-2.2.15-15.el6_2.1.x86_64.rpm

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

Source:

noarch:
httpd-manual-2.2.15-15.el6_2.1.noarch.rpm

x86_64:
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm
httpd-devel-2.2.15-15.el6_2.1.i686.rpm
httpd-devel-2.2.15-15.el6_2.1.x86_64.rpm
mod_ssl-2.2.15-15.el6_2.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
httpd-2.2.15-15.el6_2.1.i686.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-devel-2.2.15-15.el6_2.1.i686.rpm
httpd-tools-2.2.15-15.el6_2.1.i686.rpm
mod_ssl-2.2.15-15.el6_2.1.i686.rpm

noarch:
httpd-manual-2.2.15-15.el6_2.1.noarch.rpm

ppc64:
httpd-2.2.15-15.el6_2.1.ppc64.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.ppc.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.ppc64.rpm
httpd-devel-2.2.15-15.el6_2.1.ppc.rpm
httpd-devel-2.2.15-15.el6_2.1.ppc64.rpm
httpd-tools-2.2.15-15.el6_2.1.ppc64.rpm
mod_ssl-2.2.15-15.el6_2.1.ppc64.rpm

s390x:
httpd-2.2.15-15.el6_2.1.s390x.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.s390.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.s390x.rpm
httpd-devel-2.2.15-15.el6_2.1.s390.rpm
httpd-devel-2.2.15-15.el6_2.1.s390x.rpm
httpd-tools-2.2.15-15.el6_2.1.s390x.rpm
mod_ssl-2.2.15-15.el6_2.1.s390x.rpm

x86_64:
httpd-2.2.15-15.el6_2.1.x86_64.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm
httpd-devel-2.2.15-15.el6_2.1.i686.rpm
httpd-devel-2.2.15-15.el6_2.1.x86_64.rpm
httpd-tools-2.2.15-15.el6_2.1.x86_64.rpm
mod_ssl-2.2.15-15.el6_2.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
httpd-2.2.15-15.el6_2.1.i686.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-devel-2.2.15-15.el6_2.1.i686.rpm
httpd-tools-2.2.15-15.el6_2.1.i686.rpm
mod_ssl-2.2.15-15.el6_2.1.i686.rpm

noarch:
httpd-manual-2.2.15-15.el6_2.1.noarch.rpm

x86_64:
httpd-2.2.15-15.el6_2.1.x86_64.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm
httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm
httpd-devel-2.2.15-15.el6_2.1.i686.rpm
httpd-devel-2.2.15-15.el6_2.1.x86_64.rpm
httpd-tools-2.2.15-15.el6_2.1.x86_64.rpm
mod_ssl-2.2.15-15.el6_2.1.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://access.redhat.com/security/cve/CVE-2011-3607
https://access.redhat.com/security/cve/CVE-2011-3639
https://access.redhat.com/security/cve/CVE-2011-4317
https://access.redhat.com/security/cve/CVE-2012-0031
https://access.redhat.com/security/cve/CVE-2012-0053
https://access.redhat.com/security/updates/classification#moderate
https://access.redhat.com/errata/RHSA-2011:1391.html

8. Contact:

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

Copyright 2012 Red Hat, Inc.
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Red Hat Enterprise Linux 6 RHSA-2012:0128-01 Moderate Httpd Security Fix

red hat
Calendar Grey February 13, 2012
Dist Redhat Esm H88
A significant security patch for httpd on Red Hat Enterprise Linux 6 resolves various vulnerabilities, including potential code execution weaknesses.
Updated httpd packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6

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/kb/docs/DOC-11259

Summary

The Apache HTTP Server is a popular web server.
It was discovered that the fix for CVE-2011-3368 (released via RHSA-2011:1391) did not completely address the problem. An attacker could bypass the fix and make a reverse proxy connect to an arbitrary server not directly accessible to the attacker by sending an HTTP version 0.9 request, or by using a specially-crafted URI. (CVE-2011-3639, CVE-2011-4317)
The httpd server included the full HTTP header line in the default error page generated when receiving an excessively long or malformed header. Malicious JavaScript running in the server's domain context could use this flaw to gain access to httpOnly cookies. (CVE-2012-0053)
An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way httpd performed substitutions in regular expressions. An attacker able to set certain httpd settings, such as a user permitted to override the httpd configuration for a specific directory using a ".htaccess" file, could use this flaw to crash the httpd child process or, possibly, execute arbitrary code with the privileges of the "apache" user. (CVE-2011-3607)
A flaw was found in the way httpd handled child process status information. A malicious program running with httpd child process privileges (such as a PHP or CGI script) could use this flaw to cause the parent httpd process to crash during httpd service shutdown. (CVE-2012-0031)
All httpd users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd daemon will be restarted automatically.

References

https://access.redhat.com/security/cve/CVE-2011-3607 https://access.redhat.com/security/cve/CVE-2011-3639 https://access.redhat.com/security/cve/CVE-2011-4317 https://access.redhat.com/security/cve/CVE-2012-0031 https://access.redhat.com/security/cve/CVE-2012-0053 https://access.redhat.com/security/updates/classification#moderate https://access.redhat.com/errata/RHSA-2011:1391.html

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: httpd-2.2.15-15.el6_2.1.i686.rpm httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm httpd-tools-2.2.15-15.el6_2.1.i686.rpm
x86_64: httpd-2.2.15-15.el6_2.1.x86_64.rpm httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm httpd-tools-2.2.15-15.el6_2.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm httpd-devel-2.2.15-15.el6_2.1.i686.rpm mod_ssl-2.2.15-15.el6_2.1.i686.rpm
noarch: httpd-manual-2.2.15-15.el6_2.1.noarch.rpm
x86_64: httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm httpd-devel-2.2.15-15.el6_2.1.i686.rpm httpd-devel-2.2.15-15.el6_2.1.x86_64.rpm mod_ssl-2.2.15-15.el6_2.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
x86_64: httpd-2.2.15-15.el6_2.1.x86_64.rpm httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm httpd-tools-2.2.15-15.el6_2.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
noarch: httpd-manual-2.2.15-15.el6_2.1.noarch.rpm
x86_64: httpd-debuginfo-2.2.15-15.el6_2.1.i686.rpm httpd-debuginfo-2.2.15-15.el6_2.1.x86_64.rpm httpd-devel-2.2.15-15.el6_2.1.i686.rpm httpd-devel-2.2.15-15.el6_2.1.x86_64.rpm mod_ssl-2.2.15-15.el6_2.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386:

Read the Full Advisory


Advisory ID: RHSA-2012:0128-01
Product: Red Hat Enterprise Linux
Issue date: 2012-02-13

Topic

Updated httpd packages that fix multiple security issues are now availablefor Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

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

Bugs Fixed

752080 - CVE-2011-3639 httpd: http 0.9 request bypass of the reverse proxy vulnerability CVE-2011-3368 fix

756483 - CVE-2011-4317 httpd: uri scheme bypass of the reverse proxy vulnerability CVE-2011-3368 fix

769844 - CVE-2011-3607 httpd: ap_pregsub Integer overflow to buffer overflow

773744 - CVE-2012-0031 httpd: possible crash on shutdown due to flaw in scoreboard handling

785069 - CVE-2012-0053 httpd: cookie exposure due to error responses

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