apache security update for Stronghold

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.

Versions of the Apache Web server up to and including 1.3.24 contain a bug
in the routines which deal with "chunked" encoded requests.
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.

Due to the nature of the overflow on 32-bit Unix platforms, this will most
likely cause a segmentation violation, and the child will terminate.
However, on some 64-bit and 32-bit platforms, an additional exploit may be
possible. On these platforms, the overflow could allow arbitrary code to be
run on the server, with the code running as the user under which the Apache
child processes are set to run.

All users of Stronghold are advised to upgrade to this errata release.

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.

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0392
http://httpd.apache.org/info/security_bulletin_20020617.txt
http://stronghold.redhat.com/sh4/errata-2002-118

apache, chunked, DoS, encoding, Stronghold