Updated secureweb packages fix chunked encoding issue

The Apache Web server contains a security vulnerability which can be used
to launch a denial of service attack, or in some cases, allow remote code
execution. Red Hat Secure Web server is based on the Apache Web server and
the secureweb package has been updated to fix this denial of service
vulnerability.

Versions of the Apache Web server up to and including 1.3.24 contain a bug
in the routines which deal with requests that are processed with "chunked"
encoding. A carefully crafted invalid request can cause an Apache child
process to call the memcpy() function in a way that will write past the end
of its buffer, corrupting the stack.

The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2002-0392 to this issue.

Our investigations show that this bug cannot be used to gain remote access
to a server running Red Hat Secure Web Server but it does cause the child
process to die. The Apache parent process will notice this and start a new
child process when necessary -- using slightly more resources than normal.

All users of Secure Web Server should update to these errata packages to
correct this security issue.

NOTE: Pay special attention to the installation instructions in the
"Solution" section below as they differ from standard upgrade instructions.

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

Some of these files are distributed in rhmask format and may only be used
by individuals who have purchased Red Hat Linux 6.2 Professional.

To produce installable RPM files from the rhmask files, retrieve the rhmask
files via ftp and type the following command:

rhmask secureweb-3.2-12.i386.rpm secureweb-3.2.5-1.i386.rpm.rhmask

The original RPM is located only on your Secure Web Server CD, and cannot
be obtained via the Internet.

Note: If you do not have the original RPM located in the same directory as
the rhmask file, you will need to prefix the name of the RPM with the full
path name to its location (for example, on your installation CD).

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.

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0392
http://httpd.apache.org/info/security_bulletin_20020617.txt
http://www.apacheweek.com/issues/02-06-21#security

apache, chunked, DoS, encoding