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ESB-2007.0885 -- [RedHat] -- Moderate: httpd security, bug fix, and enhancement update

Date: 08 November 2007
References: ESB-2007.0843  ESB-2007.0926  

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                         ESB-2007.0885 -- [RedHat]
         Moderate: httpd security, bug fix, and enhancement update
                              8 November 2007

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              httpd
Publisher:            Red Hat
Operating System:     Red Hat Linux 5
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-3847

Ref:                  ESB-2007.0843

Original Bulletin:    https://rhn.redhat.com/errata/RHSA-2007-0746.html

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                   Red Hat Security Advisory

Synopsis:          Moderate: httpd security, bug fix, and enhancement update
Advisory ID:       RHSA-2007:0746-04
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2007-0746.html
Issue date:        2007-11-07
Updated on:        2007-11-07
Product:           Red Hat Enterprise Linux
CVE Names:         CVE-2007-3847 
- - ---------------------------------------------------------------------

1. Summary:

Updated httpd packages that fix a security issue, fix various bugs, and
add enhancements, are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

3. Problem description:

The Apache HTTP Server is a popular and freely-available Web server.

A flaw was found in the Apache HTTP Server mod_proxy module. On sites where
a reverse proxy is configured, a remote attacker could send a carefully
crafted request that would cause the Apache child process handling that
request to crash. On sites where a forward proxy is configured, an attacker
could cause a similar crash if a user could be persuaded to visit a
malicious site using the proxy. This could lead to a denial of service if
using a threaded Multi-Processing Module. (CVE-2007-3847)

As well, these updated packages fix the following bugs:

* Set-Cookie headers with a status code of 3xx are not forwarded to
clients when the "ProxyErrorOverride" directive is enabled. These
responses are overridden at the proxy. Only the responses with status
codes of 4xx and 5xx are overridden in these updated packages.

* the default "/etc/logrotate.d/httpd" script incorrectly invoked the kill
command, instead of using the "/sbin/service httpd restart" command. If you
configured the httpd PID to be in a location other than
"/var/run/httpd.pid", the httpd logs failed to be rotated. This has been
resolved in these updated packages.

* the "ProxyTimeout" directive was not inherited across virtual host
definitions.

* the logresolve utility was unable to read lines longer the 1024 bytes.

This update adds the following enhancements:

* a new configuration option has been added, "ServerTokens Full-Release",
which adds the package release to the server version string, which is
returned in the "Server" response header.

* a new module has been added, mod_version, which allows configuration
files to be written containing sections, which are evaluated only if the
version of httpd used matches a specified condition.

Users of httpd are advised to upgrade to these updated packages, which
resolve these issues and add these enhancements.

4. Solution:

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

This update is available via Red Hat Network.  Details on how to use 
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bug IDs fixed (http://bugzilla.redhat.com/):

240024 - Mod_proxy_http ProxyErrorOverride eating cookies
240857 - [RFE] Apache does not report patch level when scanned
241680 - logrotate.d/httpd postrotate must use initscripts
245719 - mod_proxy configuration inheritance issue
245763 - long lines incorrectly handled by Apache's logresolve
250731 - CVE-2007-3847 httpd out of bounds read

6. RPMs required:

Red Hat Enterprise Linux Desktop (v. 5 client):

SRPMS:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/httpd-2.2.3-11.el5.src.rpm
3ee6039a6aa2beeb14c55695c48cb6be  httpd-2.2.3-11.el5.src.rpm

i386:
d734aeef038abf88bf4886911c124c7a  httpd-2.2.3-11.el5.i386.rpm
b16e49ba0ee29fe72b5df11fd928a361  httpd-debuginfo-2.2.3-11.el5.i386.rpm
86a4778fab59148114af83ba1eca224f  mod_ssl-2.2.3-11.el5.i386.rpm

x86_64:
0030021cc1bc50b7c1d149f7c228d68a  httpd-2.2.3-11.el5.x86_64.rpm
04c060ef39947d8a03756456fe013c31  httpd-debuginfo-2.2.3-11.el5.x86_64.rpm
fd20a69dc6b00651fae0d0d86511b867  mod_ssl-2.2.3-11.el5.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

SRPMS:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/httpd-2.2.3-11.el5.src.rpm
3ee6039a6aa2beeb14c55695c48cb6be  httpd-2.2.3-11.el5.src.rpm

i386:
b16e49ba0ee29fe72b5df11fd928a361  httpd-debuginfo-2.2.3-11.el5.i386.rpm
2295f9d39e5e87fa8843f5c6158e2afb  httpd-devel-2.2.3-11.el5.i386.rpm
c994b3e5b0e2ff8102043792505c91d4  httpd-manual-2.2.3-11.el5.i386.rpm

x86_64:
b16e49ba0ee29fe72b5df11fd928a361  httpd-debuginfo-2.2.3-11.el5.i386.rpm
04c060ef39947d8a03756456fe013c31  httpd-debuginfo-2.2.3-11.el5.x86_64.rpm
2295f9d39e5e87fa8843f5c6158e2afb  httpd-devel-2.2.3-11.el5.i386.rpm
4603c4e041958a602c4bad393c90c6a7  httpd-devel-2.2.3-11.el5.x86_64.rpm
07e2c67b68e178bac107a3e61a929f23  httpd-manual-2.2.3-11.el5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

SRPMS:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/httpd-2.2.3-11.el5.src.rpm
3ee6039a6aa2beeb14c55695c48cb6be  httpd-2.2.3-11.el5.src.rpm

i386:
d734aeef038abf88bf4886911c124c7a  httpd-2.2.3-11.el5.i386.rpm
b16e49ba0ee29fe72b5df11fd928a361  httpd-debuginfo-2.2.3-11.el5.i386.rpm
2295f9d39e5e87fa8843f5c6158e2afb  httpd-devel-2.2.3-11.el5.i386.rpm
c994b3e5b0e2ff8102043792505c91d4  httpd-manual-2.2.3-11.el5.i386.rpm
86a4778fab59148114af83ba1eca224f  mod_ssl-2.2.3-11.el5.i386.rpm

ia64:
c56a478f241fae66e5a98d9a7160c079  httpd-2.2.3-11.el5.ia64.rpm
384dbc9996ce2fd456639a40a34ac765  httpd-debuginfo-2.2.3-11.el5.ia64.rpm
505c228afa459feb3273e1cea8e2be82  httpd-devel-2.2.3-11.el5.ia64.rpm
401a8cbb5de0e8db47c2ddb0c8373525  httpd-manual-2.2.3-11.el5.ia64.rpm
fcec7364955523f2d57ccb51e43ad811  mod_ssl-2.2.3-11.el5.ia64.rpm

ppc:
487e19dc73a7f1243fc380ec848c9ed8  httpd-2.2.3-11.el5.ppc.rpm
7a754add4fefa8284bf113f064c0fcc7  httpd-debuginfo-2.2.3-11.el5.ppc.rpm
f119c96226df58f9d77a5a8c3c218f1f  httpd-debuginfo-2.2.3-11.el5.ppc64.rpm
07427ada748e7b16d2561534a14a02cf  httpd-devel-2.2.3-11.el5.ppc.rpm
4997b231b3653909aa8f09dfc4635345  httpd-devel-2.2.3-11.el5.ppc64.rpm
61b181d0f1bd39bbfa7909f1af0f5f12  httpd-manual-2.2.3-11.el5.ppc.rpm
2a9afa90dbde5d937b9c63b02ad86b8c  mod_ssl-2.2.3-11.el5.ppc.rpm

s390x:
268a9c1257e6630d2630919609defbaf  httpd-2.2.3-11.el5.s390x.rpm
1896c36a9bdefb2f024c3daea65673cc  httpd-debuginfo-2.2.3-11.el5.s390.rpm
775f81a39195c275e76f6792d68c54a2  httpd-debuginfo-2.2.3-11.el5.s390x.rpm
2cca0b16331ad72d7187f5311e38d919  httpd-devel-2.2.3-11.el5.s390.rpm
bfadb9ae50a4f5f9f55a9c486afaf916  httpd-devel-2.2.3-11.el5.s390x.rpm
a88989c4b428cf512189c317e16eb70c  httpd-manual-2.2.3-11.el5.s390x.rpm
0ada06035539671248eda54a10e4c654  mod_ssl-2.2.3-11.el5.s390x.rpm

x86_64:
0030021cc1bc50b7c1d149f7c228d68a  httpd-2.2.3-11.el5.x86_64.rpm
b16e49ba0ee29fe72b5df11fd928a361  httpd-debuginfo-2.2.3-11.el5.i386.rpm
04c060ef39947d8a03756456fe013c31  httpd-debuginfo-2.2.3-11.el5.x86_64.rpm
2295f9d39e5e87fa8843f5c6158e2afb  httpd-devel-2.2.3-11.el5.i386.rpm
4603c4e041958a602c4bad393c90c6a7  httpd-devel-2.2.3-11.el5.x86_64.rpm
07e2c67b68e178bac107a3e61a929f23  httpd-manual-2.2.3-11.el5.x86_64.rpm
fd20a69dc6b00651fae0d0d86511b867  mod_ssl-2.2.3-11.el5.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3847
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2007 Red Hat, Inc.
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