Message-ID: <200311240825.hAO8PKm22046@lacrosse.corp.redhat.com>
Date: Mon, 24 Nov 2003 03:25 -0500
From: bugzilla@...hat.com
To: redhat-watch-list@...hat.com, bugtraq@...urityfocus.com,
	full-disclosure@...ts.netsys.com
Subject: [RHSA-2003:342-01] Updated EPIC packages fix security vulnerability


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                   Red Hat Security Advisory

Synopsis:          Updated EPIC packages fix security vulnerability
Advisory ID:       RHSA-2003:342-01
Issue date:        2003-11-17
Updated on:        2003-11-17
Product:           Red Hat Linux
Keywords:          irc epic4 ircii
Cross references:  
Obsoletes:         
CVE Names:         CAN-2003-0328
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1. Topic:

Updated EPIC packages which fix an exploitable buffer overflow vulnerability
are now available.

2. Relevant releases/architectures:

Red Hat Linux 7.3 - i386
Red Hat Linux 8.0 - i386
Red Hat Linux 9 - i386

3. Problem description:

EPIC (Enhanced Programmable ircII Client) is an advanced ircII chat
client designed to connect to Internet Relay Chat (IRC) servers.

A bug in various versions of EPIC allows remote malicious IRC servers to
cause a denial of service (crash) and execute arbitrary code via a CTCP
request from a large nickname, which causes an incorrect length
calculation.  The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2003-0328 to this issue.

Users of EPIC who may connect to untrusted servers are advised to upgrade
to the packages in this erratum which contain a backported security fix to
correct this issue.

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. RPMs required:

Red Hat Linux 7.3:

SRPMS:
ftp://updates.redhat.com/7.3/en/os/SRPMS/epic-1.0.1-15.7.x.src.rpm

i386:
ftp://updates.redhat.com/7.3/en/os/i386/epic-1.0.1-15.7.x.i386.rpm

Red Hat Linux 8.0:

SRPMS:
ftp://updates.redhat.com/8.0/en/os/SRPMS/epic-1.0.1-15.8.0.src.rpm

i386:
ftp://updates.redhat.com/8.0/en/os/i386/epic-1.0.1-15.8.0.i386.rpm

Red Hat Linux 9:

SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/epic-1.0.1-15.9.src.rpm

i386:
ftp://updates.redhat.com/9/en/os/i386/epic-1.0.1-15.9.i386.rpm



6. Verification:

MD5 sum                          Package Name
- --------------------------------------------------------------------------
080bb85c470e9c12a15edcd96300e087 7.3/en/os/SRPMS/epic-1.0.1-15.7.x.src.rpm
e8da45cb6a22eb4dc2935de1f5012478 7.3/en/os/i386/epic-1.0.1-15.7.x.i386.rpm
36d4a3832e7aad69fb209f23b4e0c4cd 8.0/en/os/SRPMS/epic-1.0.1-15.8.0.src.rpm
cbed1b9694f4205e32a96bf35147e49c 8.0/en/os/i386/epic-1.0.1-15.8.0.i386.rpm
f96a0bc7489d41049aa4c33641afbef1 9/en/os/SRPMS/epic-1.0.1-15.9.src.rpm
4e4525b6dafb7d2a8cb728317bf1253c 9/en/os/i386/epic-1.0.1-15.9.i386.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>


7. References:

ftp://ftp.prbh.org/pub/epic/patches/alloca_underrun-patch-1
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0328

8. Contact:

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

Copyright 2003 Red Hat, Inc.
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