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Category:   Application (Generic)  >   Midnight Commander Vendors:   GNU Midnight Commander Project
(Red Hat Issues Fix for RH Linux) Midnight Commander Has Multiple Bugs That May Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1010005
SecurityTracker URL:  http://securitytracker.com/id/1010005
CVE Reference:   CVE-2004-0226, CVE-2004-0231, CVE-2004-0232   (Links to External Site)
Date:  Apr 30 2004
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Several vulnerabilities were reported in Midnight Commander. A local user may be able to obtain elevated privileges.

Debian and Mandrake reported multiple vulnerabilities in Midnight Commander. The flaws include several buffer overflows [CVE: CVE-2004-0226], a format string vulnerability [CVE: CVE-2004-0232], and a temporary file and directory creation vulnerability [CVE: CVE-2004-0231].

Jacub Jelinek is credited with discovering the flaws.

Impact:   A local user may be able to gain the privileges of the user running mc.
Solution:   Red Hat has released a fix.

Red Hat Linux 9:

SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/mc-4.6.0-14.9.src.rpm

i386:
ftp://updates.redhat.com/9/en/os/i386/mc-4.6.0-14.9.i386.rpm

The verification checksums are:

MD5 sum Package Name

74f1b62a975a9aff2e2908ed6a4b9d6b 9/en/os/SRPMS/mc-4.6.0-14.9.src.rpm
4e7342c54c489005f8e2775bf8929be0 9/en/os/i386/mc-4.6.0-14.9.i386.rpm

Vendor URL:  www.ibiblio.org/mc/ (Links to External Site)
Cause:   Access control error, Boundary error, Input validation error, State error
Underlying OS:  Linux (Red Hat Linux)
Underlying OS Comments:  9

Message History:   This archive entry is a follow-up to the message listed below.
Apr 30 2004 Midnight Commander Has Multiple Bugs That May Let Local Users Gain Elevated Privileges



 Source Message Contents

Subject:  [RHSA-2004:173-01] Updated mc packages resolve several


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Updated mc packages resolve several vulnerabilities
Advisory ID:       RHSA-2004:173-01
Issue date:        2004-04-30
Updated on:        2004-04-30
Product:           Red Hat Linux
Keywords:          mc buffer overflow format string temporary file
Cross references:  
Obsoletes:         
CVE Names:         CAN-2004-0226 CAN-2004-0231 CAN-2004-0232
- ---------------------------------------------------------------------

1. Topic:

Updated mc packages that resolve several buffer overflow vulnerabilities,
one format string vulnerability and several temporary file creation
vulnerabilities are now available.

2. Relevant releases/architectures:

Red Hat Linux 9 - i386

3. Problem description:

Midnight Commander (mc) is a visual shell much like a file manager.

Several buffer overflows, several temporary file creation vulnerabilities,
and one format string vulnerability have been discovered in Midnight
Commander.  These vulnerabilities were discovered mostly by Andrew V.
Samoilov and Pavel Roskin.  The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the names CAN-2004-0226,
CAN-2004-0231, and CAN-2004-0232 to these issues.

Users should upgrade to these updated packages, which resolve these issues.

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.

5. RPMs required:

Red Hat Linux 9:

SRPMS:
ftp://updates.redhat.com/9/en/os/SRPMS/mc-4.6.0-14.9.src.rpm

i386:
ftp://updates.redhat.com/9/en/os/i386/mc-4.6.0-14.9.i386.rpm



6. Verification:

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

74f1b62a975a9aff2e2908ed6a4b9d6b 9/en/os/SRPMS/mc-4.6.0-14.9.src.rpm
4e7342c54c489005f8e2775bf8929be0 9/en/os/i386/mc-4.6.0-14.9.i386.rpm

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

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0226
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0231
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0232

8. Contact:

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

Copyright 2004 Red Hat, Inc.
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