[RHSA-2011:1391-01] Moderate: httpd security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Moderate: httpd security and bug fix update

Advisory ID: RHSA-2011:1391-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1391.html

Issue date: 2011-10-20

CVE Names: CVE-2011-3348 CVE-2011-3368

=====================================================================

 

1. Summary:

 

Updated httpd packages that fix two security issues and one bug 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 Apache HTTP Server did not properly validate the

request URI for proxied requests. In certain configurations, if a reverse

proxy used the ProxyPassMatch directive, or if it used the RewriteRule

directive with the proxy flag, a remote attacker could make the proxy

connect to an arbitrary server, possibly disclosing sensitive information

from internal web servers not directly accessible to the attacker.

(CVE-2011-3368)

 

It was discovered that mod_proxy_ajp incorrectly returned an "Internal

Server Error" response when processing certain malformed HTTP requests,

which caused the back-end server to be marked as failed in configurations

where mod_proxy was used in load balancer mode. A remote attacker could

cause mod_proxy to not send requests to back-end AJP (Apache JServ

Protocol) servers for the retry timeout period or until all back-end

servers were marked as failed. (CVE-2011-3348)

 

Red Hat would like to thank Context Information Security for reporting the

CVE-2011-3368 issue.

 

This update also fixes the following bug:

 

* The fix for CVE-2011-3192 provided by the RHSA-2011:1245 update

introduced regressions in the way httpd handled certain Range HTTP header

values. This update corrects those regressions. (BZ#736592)

 

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 must be restarted for the update to take effect.

 

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/):

 

736592 - httpd: RHSA-2011:1245 regressions [rhel-6]

736690 - CVE-2011-3348 httpd: mod_proxy_ajp remote temporary DoS

740045 - CVE-2011-3368 httpd: reverse web proxy vulnerability

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/httpd-2.2.15-9.el6_1.3.src.rpm

 

i386:

httpd-2.2.15-9.el6_1.3.i686.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-tools-2.2.15-9.el6_1.3.i686.rpm

 

x86_64:

httpd-2.2.15-9.el6_1.3.x86_64.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.x86_64.rpm

httpd-tools-2.2.15-9.el6_1.3.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-2.2.15-9.el6_1.3.src.rpm

 

i386:

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-devel-2.2.15-9.el6_1.3.i686.rpm

mod_ssl-2.2.15-9.el6_1.3.i686.rpm

 

noarch:

httpd-manual-2.2.15-9.el6_1.3.noarch.rpm

 

x86_64:

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.x86_64.rpm

httpd-devel-2.2.15-9.el6_1.3.i686.rpm

httpd-devel-2.2.15-9.el6_1.3.x86_64.rpm

mod_ssl-2.2.15-9.el6_1.3.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-2.2.15-9.el6_1.3.src.rpm

 

x86_64:

httpd-2.2.15-9.el6_1.3.x86_64.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.x86_64.rpm

httpd-tools-2.2.15-9.el6_1.3.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-2.2.15-9.el6_1.3.src.rpm

 

noarch:

httpd-manual-2.2.15-9.el6_1.3.noarch.rpm

 

x86_64:

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.x86_64.rpm

httpd-devel-2.2.15-9.el6_1.3.i686.rpm

httpd-devel-2.2.15-9.el6_1.3.x86_64.rpm

mod_ssl-2.2.15-9.el6_1.3.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/httpd-2.2.15-9.el6_1.3.src.rpm

 

i386:

httpd-2.2.15-9.el6_1.3.i686.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-devel-2.2.15-9.el6_1.3.i686.rpm

httpd-tools-2.2.15-9.el6_1.3.i686.rpm

mod_ssl-2.2.15-9.el6_1.3.i686.rpm

 

noarch:

httpd-manual-2.2.15-9.el6_1.3.noarch.rpm

 

ppc64:

httpd-2.2.15-9.el6_1.3.ppc64.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.ppc.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.ppc64.rpm

httpd-devel-2.2.15-9.el6_1.3.ppc.rpm

httpd-devel-2.2.15-9.el6_1.3.ppc64.rpm

httpd-tools-2.2.15-9.el6_1.3.ppc64.rpm

mod_ssl-2.2.15-9.el6_1.3.ppc64.rpm

 

s390x:

httpd-2.2.15-9.el6_1.3.s390x.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.s390.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.s390x.rpm

httpd-devel-2.2.15-9.el6_1.3.s390.rpm

httpd-devel-2.2.15-9.el6_1.3.s390x.rpm

httpd-tools-2.2.15-9.el6_1.3.s390x.rpm

mod_ssl-2.2.15-9.el6_1.3.s390x.rpm

 

x86_64:

httpd-2.2.15-9.el6_1.3.x86_64.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.x86_64.rpm

httpd-devel-2.2.15-9.el6_1.3.i686.rpm

httpd-devel-2.2.15-9.el6_1.3.x86_64.rpm

httpd-tools-2.2.15-9.el6_1.3.x86_64.rpm

mod_ssl-2.2.15-9.el6_1.3.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/httpd-2.2.15-9.el6_1.3.src.rpm

 

i386:

httpd-2.2.15-9.el6_1.3.i686.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-devel-2.2.15-9.el6_1.3.i686.rpm

httpd-tools-2.2.15-9.el6_1.3.i686.rpm

mod_ssl-2.2.15-9.el6_1.3.i686.rpm

 

noarch:

httpd-manual-2.2.15-9.el6_1.3.noarch.rpm

 

x86_64:

httpd-2.2.15-9.el6_1.3.x86_64.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.i686.rpm

httpd-debuginfo-2.2.15-9.el6_1.3.x86_64.rpm

httpd-devel-2.2.15-9.el6_1.3.i686.rpm

httpd-devel-2.2.15-9.el6_1.3.x86_64.rpm

httpd-tools-2.2.15-9.el6_1.3.x86_64.rpm

mod_ssl-2.2.15-9.el6_1.3.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-2011-3348.html

https://www.redhat.com/security/data/cve/CVE-2011-3368.html

https://access.redhat.com/security/updates/classification/#moderate

https://rhn.redhat.com/errata/RHSA-2011-1245.html

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2011 Red Hat, Inc.

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