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#1 effigy

effigy
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Posted 10 February 2003 - 05:03 PM

those of you running red hat 6.2 - 8.0 who have not registered your system, this was mailed as of feb. 10:

Red Hat Network has determined that the following advisory is applicable to
one or more of the systems you have registered:

Complete information about this errata can be found at the following location:
https://rhn.redhat.c...ls.pxt?eid=1356

Security Advisory - RHSA-2002:222-21
------------------------------------------------------------------------------
Summary:
Updated apache, httpd, and mod_ssl packages available

Updated apache and httpd packages which fix a number of security issues are
now available for Red Hat Linux 6.2, 7, 7.1, 7.2, 7.3, and 8.0.

Description:
The Apache HTTP Web Server is a secure, efficient, and extensible web
server that provides HTTP services.

Buffer overflows in the ApacheBench support program (ab.c) in Apache
versions prior to 1.3.27, and Apache versions 2.x prior to 2.0.43, allow a
malicious Web server to cause a denial of service (DoS) and possibly
execute arbitrary code via a long response. The Common Vulnerabilities and
Exposures project has assigned the name CAN-2002-0843 to this issue.

Two cross-site scripting (XSS) vulnerabilities are present in the error
pages for the default \\\"404 Not Found\\\" error and for the error response
when a plain HTTP request is received on an SSL port. Both of these issues
are only exploitable if the \\\"UseCanonicalName\\\" setting has been changed to
\\\"Off\\\", and wildcard DNS is in use. These issues could allow remote
attackers to execute scripts as other webpage visitors, for instance, to
steal cookies. These issues affect versions of Apache 1.3 before 1.3.26,
versions of Apache 2.0 before 2.0.43, and versions of mod_ssl before
2.8.12. (CAN-2002-0840, CAN-2002-1157)

The shared memory scoreboard in the HTTP daemon for Apache 1.3, prior to
version 1.3.27, allows a user running as the \\\"apache\\\" UID to send a
SIGUSR1 signal to any process as root, resulting in a denial of service
(process kill) or other such behavior that would not normally be allowed.  
(CAN-2002-0839). Note that this issue does not affect Red Hat
Linux 8.0.

All users of the Apache HTTP Web Server are advised to upgrade to the
applicable errata packages. For Red Hat Linux 6.2, 7, 7.1, 7.2, and 7.3,
these packages include Apache version 1.3.27 which is not vulnerable to
these issues. For Red Hat Linux 8.0, the fixes have been back-ported and
applied to Apache version 2.0.40.

Note that the instructions in the \\\"Solution\\\" section of this errata contain
additional steps required to complete the upgrade process.

References:
http://www.apachewee...issues/02-10-04
------------------------------------------------------------------------------

-------------
Taking Action
-------------
You may address the issues outlined in this advisory in two ways:

- select your server name by clicking on its name from the list
available at the following location, and then schedule an
errata update for it:
https://rhn.redhat.c...system_list.pxt

- run the Update Agent on each affected server.


---------------------------------
Changing Notification Preferences
---------------------------------
To enable/disable your Errata Alert preferences globally please log in to RHN
and navigate from \\\"Your RHN\\\" / \\\"Your Account\\\" to the \\\"Preferences\\\" tab.

URL: https://rhn.redhat.c...nt/my_prefs.pxt

You can also enable/disable notification on a per system basis by selecting an
individual system from the \\\"Systems List\\\". From the individual system view
click the \\\"Details\\\" tab.


----------------
Affected Systems
----------------
According to our records, this errata may apply to one or more of the  
systems that you\'ve profiled with Red Hat Network. To see precisely which  
systems are affected, please go to:
https://rhn.redhat.c...ed.pxt?eid=1356

The Red Hat Network Team


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