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

                     ESB-2004.0044 -- RHSA-2004:015-01
     Updated httpd packages fix minor Apache security vulnerabilities
                              15 January 2004

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

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

Product:                httpd (Apache)
Publisher:              Red Hat
Operating System:       Red Hat Enterprise Linux AS 3
                        Red Hat Enterprise Linux ES 3
                        Red Hat Enterprise Linux WS 3
Impact:                 Execute Arbitrary Code/Commands
Access Required:        Remote
CVE Names:              CAN-2003-0542

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                   Red Hat Security Advisory

Synopsis:          Updated httpd packages fix minor Apache security vulnerabilities
Advisory ID:       RHSA-2004:015-01
Issue date:        2004-01-13
Updated on:        2004-01-13
Product:           Red Hat Enterprise Linux
Keywords:          Apache httpd ASF
Cross references:  
Obsoletes:         
CVE Names:         CAN-2003-0542
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1. Topic:

Updated httpd packages that fix two minor security issues in the Apache Web
server are now available for Red Hat Enterprise Linux 3.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 3 - i386
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Problem description:

The Apache HTTP Server is a powerful, full-featured, efficient, and
freely-available Web server.

An issue in the handling of regular expressions from configuration files
was discovered in releases of the Apache HTTP Server version 2.0 prior to
2.0.48. To exploit this issue an attacker would need to have the ability
to write to Apache configuration files such as .htaccess or httpd.conf. A
carefully-crafted configuration file can cause an exploitable buffer
overflow and would allow the attacker to execute arbitrary code in the
context of the server (in default configurations as the 'apache' user).
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2003-0542 to this issue.

Users of the Apache HTTP Server should upgrade to these erratum packages,
which contain backported patches correcting these issues, and are applied
to Apache version 2.0.46.  This update also includes fixes for a number of
minor bugs found in this version of the Apache HTTP Server.

4. Solution:

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

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which are
not installed but included in the list will not be updated.  Note that you
can also use wildcards (*.rpm) if your current directory *only* contains
the desired RPMs.

Please note that this update is also available via Red Hat Network.  Many
people find this an easier way to apply updates.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the
up2date client with an updated certificate.  The latest version of
up2date is available from the Red Hat FTP site and may also be
downloaded directly from the RHN website:

https://rhn.redhat.com/help/latest-up2date.pxt

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

110434 - CAN-2003-0542 local buffer overflow in config file parsing
105725 - long httpd graceful reload times

6. RPMs required:

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/3AS/en/os/SRPMS/httpd-2.0.46-26.ent.src.rpm

i386:
Available from Red Hat Network: httpd-2.0.46-26.ent.i386.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.i386.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.i386.rpm

ia64:
Available from Red Hat Network: httpd-2.0.46-26.ent.ia64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.ia64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.ia64.rpm

ppc:
Available from Red Hat Network: httpd-2.0.46-26.ent.ppc.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.ppc.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.ppc.rpm

s390:
Available from Red Hat Network: httpd-2.0.46-26.ent.s390.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.s390.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.s390.rpm

s390x:
Available from Red Hat Network: httpd-2.0.46-26.ent.s390x.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.s390x.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.s390x.rpm

x86_64:
Available from Red Hat Network: httpd-2.0.46-26.ent.x86_64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.x86_64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/3ES/en/os/SRPMS/httpd-2.0.46-26.ent.src.rpm

i386:
Available from Red Hat Network: httpd-2.0.46-26.ent.i386.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.i386.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.i386.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/3WS/en/os/SRPMS/httpd-2.0.46-26.ent.src.rpm

i386:
Available from Red Hat Network: httpd-2.0.46-26.ent.i386.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.i386.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.i386.rpm

ia64:
Available from Red Hat Network: httpd-2.0.46-26.ent.ia64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.ia64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.ia64.rpm

x86_64:
Available from Red Hat Network: httpd-2.0.46-26.ent.x86_64.rpm
Available from Red Hat Network: httpd-devel-2.0.46-26.ent.x86_64.rpm
Available from Red Hat Network: mod_ssl-2.0.46-26.ent.x86_64.rpm



7. Verification:

MD5 sum                          Package Name
- - --------------------------------------------------------------------------

58117555f11e34a08a4da76e04fb9e46 3AS/en/os/SRPMS/httpd-2.0.46-26.ent.src.rpm
03628d122fd11afcdd4c45fcdf3c1166 3AS/en/os/i386/httpd-2.0.46-26.ent.i386.rpm
30d27b4ced5e4a7c18d84eba8db8319c 3AS/en/os/i386/httpd-devel-2.0.46-26.ent.i386.rpm
c9a7cef9d3c104cd65042ffba72a99d9 3AS/en/os/i386/mod_ssl-2.0.46-26.ent.i386.rpm
56676b41b4dc3e0cd16cbbe61ea2e764 3AS/en/os/ia64/httpd-2.0.46-26.ent.ia64.rpm
5c688139dd9bd30b3d27eabcda5298fa 3AS/en/os/ia64/httpd-devel-2.0.46-26.ent.ia64.rpm
85379ceb78fdf24532dfe09594f027c8 3AS/en/os/ia64/mod_ssl-2.0.46-26.ent.ia64.rpm
cb55c3a60c659b8bf3052629342dc056 3AS/en/os/ppc/httpd-2.0.46-26.ent.ppc.rpm
594a5b47138248571b48921738492d68 3AS/en/os/ppc/httpd-devel-2.0.46-26.ent.ppc.rpm
730f9d9f2fdd082b18d281914dab20d0 3AS/en/os/ppc/mod_ssl-2.0.46-26.ent.ppc.rpm
d09b4524eb58a15d47568e302d01460e 3AS/en/os/s390/httpd-2.0.46-26.ent.s390.rpm
9b1b76f2ab8565cbb876edadc11872c4 3AS/en/os/s390/httpd-devel-2.0.46-26.ent.s390.rpm
d2a32872cd55c0e242e84eb0a3eb5241 3AS/en/os/s390/mod_ssl-2.0.46-26.ent.s390.rpm
6e43b0078c515edda6d76c26f445c98d 3AS/en/os/s390x/httpd-2.0.46-26.ent.s390x.rpm
58c6f61f03daa3b24fac69eae00bfd56 3AS/en/os/s390x/httpd-devel-2.0.46-26.ent.s390x.rpm
e6686821bf3445b67c65f602e8cefad6 3AS/en/os/s390x/mod_ssl-2.0.46-26.ent.s390x.rpm
2e4ec3fb5654616f77f9b807b78c86b9 3AS/en/os/x86_64/httpd-2.0.46-26.ent.x86_64.rpm
a8a293ccaa54869110d81c12d611af2a 3AS/en/os/x86_64/httpd-devel-2.0.46-26.ent.x86_64.rpm
fc07840c5cd826bcb16e7fa9c8aea687 3AS/en/os/x86_64/mod_ssl-2.0.46-26.ent.x86_64.rpm
58117555f11e34a08a4da76e04fb9e46 3ES/en/os/SRPMS/httpd-2.0.46-26.ent.src.rpm
03628d122fd11afcdd4c45fcdf3c1166 3ES/en/os/i386/httpd-2.0.46-26.ent.i386.rpm
30d27b4ced5e4a7c18d84eba8db8319c 3ES/en/os/i386/httpd-devel-2.0.46-26.ent.i386.rpm
c9a7cef9d3c104cd65042ffba72a99d9 3ES/en/os/i386/mod_ssl-2.0.46-26.ent.i386.rpm
58117555f11e34a08a4da76e04fb9e46 3WS/en/os/SRPMS/httpd-2.0.46-26.ent.src.rpm
03628d122fd11afcdd4c45fcdf3c1166 3WS/en/os/i386/httpd-2.0.46-26.ent.i386.rpm
30d27b4ced5e4a7c18d84eba8db8319c 3WS/en/os/i386/httpd-devel-2.0.46-26.ent.i386.rpm
c9a7cef9d3c104cd65042ffba72a99d9 3WS/en/os/i386/mod_ssl-2.0.46-26.ent.i386.rpm
56676b41b4dc3e0cd16cbbe61ea2e764 3WS/en/os/ia64/httpd-2.0.46-26.ent.ia64.rpm
5c688139dd9bd30b3d27eabcda5298fa 3WS/en/os/ia64/httpd-devel-2.0.46-26.ent.ia64.rpm
85379ceb78fdf24532dfe09594f027c8 3WS/en/os/ia64/mod_ssl-2.0.46-26.ent.ia64.rpm
2e4ec3fb5654616f77f9b807b78c86b9 3WS/en/os/x86_64/httpd-2.0.46-26.ent.x86_64.rpm
a8a293ccaa54869110d81c12d611af2a 3WS/en/os/x86_64/httpd-devel-2.0.46-26.ent.x86_64.rpm
fc07840c5cd826bcb16e7fa9c8aea687 3WS/en/os/x86_64/mod_ssl-2.0.46-26.ent.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key is
available from https://www.redhat.com/security/keys.html

You can verify each package with the following command:
    
    rpm --checksig -v <filename>

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    
    md5sum <filename>


8. References:

http://www.apacheweek.com/features/security-20.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0542

9. Contact:

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

Copyright 2003 Red Hat, Inc.
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