[ advisories | exploits | discussions | news | conventions | security tools | texts & papers ]
 main menu
- feedback
- advertising
- privacy
- FightAIDS
- newsletter
- news
- read forum
- new topic
- search

- meetings list
- recent additions
- add your info
 top 100 sites
- visit top sites
- sign up now
- members

- add your url
- add domain
- search box
- link to us

- our projects
- free email
 m4d network
- security software
- secureroot
- m4d.com
Home : Advisories : Updated modutils fixing local root security bug available

Title: Updated modutils fixing local root security bug available
Released by: Red Hat
Date: 17th November 2000
Printable version: Click here

                   Red Hat, Inc. Security Advisory

Synopsis:          Updated modutils fixing local root security bug available

Advisory ID:       RHSA-2000:108-03

Issue date:        2000-11-16

Updated on:        2000-11-17

Product:           Red Hat Linux

Keywords:          modutils root exploit security

Cross references:  N/A


1. Topic:

A local root exploit in modutils has been fixed.

2000-11-17: New packages available for Red Hat Linux 6.2 to

            fix an error in the previous packages.

2. Relevant releases/architectures:

Red Hat Linux 6.2 - i386, alpha, sparc

Red Hat Linux 7.0 - i386

3. Problem description:

modutils, a package that helps the kernel automatically load kernel modules

(device drivers etc.) when they're needed, could be abused to execute code

as root.

modutils versions between 2.3.0 and 2.3.20 are affected.

4. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

2000-11-17: For Red Hat Linux 6.2, if you installed the previous

   (2.3.20-0.6.2) packages, you will need to run:

      mv /etc/modules.conf /etc/conf.modules

5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

20749 - local root exploit via modutils

6. RPMs required:

Red Hat Linux 6.2:









Red Hat Linux 7.0:





7. Verification:

MD5 sum                           Package Name


d256aa304b9030391d20e105055f8337  6.2/SRPMS/modutils-2.3.20-

338e03d0f21295aa86ed1bb18dc014dd  6.2/alpha/modutils-2.3.20-

b8cd7baa481d858c726d605e99c5ce0e  6.2/i386/modutils-2.3.20-

c1e3c6c68f12b250a2cdb994e2f3e127  6.2/sparc/modutils-2.3.20-

1502c3cc848fec4ecdaf5903b9f2cbb4  7.0/SRPMS/modutils-2.3.20-1.src.rpm

166b7512c784ffaa4233e8f71ef712cd  7.0/i386/modutils-2.3.20-1.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key

is available at:


You can verify each package with the following command:

    rpm --checksig  

If you only wish to verify that each package has not been corrupted or

tampered with, examine only the md5sum with the following command:

    rpm --checksig --nogpg 

8. References:


Copyright(c) 2000 Red Hat, Inc.

(C) 1999-2000 All rights reserved.