LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Security Week: April 21st, 2014
Linux Security Week: April 7th, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
RedHat: 'modutils' vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
RedHat Linux New modutils release addresses more local root compromise possibilities

---------------------------------------------------------------------
                   Red Hat, Inc. Security Advisory

Synopsis:          new modutils release addresses more local root compromise possibilities
Advisory ID:       RHSA-2000:108-04
Issue date:        2000-11-16
Updated on:        2000-11-22
Product:           Red Hat Linux
Keywords:          modutils root exploit security
Cross references:  N/A
---------------------------------------------------------------------

1. Topic:

A new modutils-2.3.21 package has been released to correctly enable safe
guard measures introduced in modutils-2.3.20.

2. Relevant releases/architectures:

Red Hat Linux 6.2 - i386, alpha, sparc
Red Hat Linux 7.0 - i386
Red Hat Linux 7.0J - i386

3. Problem description:

The previous packages of modutils released to address a local root 
compromise contained an error in new safe guards that caused them to
not properly be enabled when run as root from the kmod process.  These
new safe guards check the arguments passed to modules.  The new 2.3.21
modutils package fixes this error and correctly checks the arguments
when running from kmod, limiting kernel module arguments to those
specified in /etc/conf.modules (on Red Hat Linux 6.2) or /etc/modules.conf
(on Red Hat Linux 7).  This release supersedes the previous modutils errata
packages.

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
modutils-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.Red Hat.com/bugzilla for more info):

20749 - local root exploit via modutils


6. RPMs required:

Red Hat Linux 6.2:

alpha: 
ftp://updates.Red Hat.com/6.2/alpha/modutils-2.3.21-0.6.2.alpha.rpm

sparc: 
ftp://updates.Red Hat.com/6.2/sparc/modutils-2.3.21-0.6.2.sparc.rpm

i386: 
ftp://updates.Red Hat.com/6.2/i386/modutils-2.3.21-0.6.2.i386.rpm

sources: 
ftp://updates.Red Hat.com/6.2/SRPMS/modutils-2.3.21-0.6.2.src.rpm

Red Hat Linux 7.0:

i386: 
ftp://updates.Red Hat.com/7.0/i386/modutils-2.3.21-1.i386.rpm

sources: 
ftp://updates.Red Hat.com/7.0/SRPMS/modutils-2.3.21-1.src.rpm

7. Verification:

MD5 sum                           Package Name
--------------------------------------------------------------------------
b21fb3e4bdef79b28c3cfbd679fa9543  6.2/SRPMS/modutils-2.3.21-0.6.2.src.rpm
73953a51d51d173b8acbf93ef387fd81  6.2/alpha/modutils-2.3.21-0.6.2.alpha.rpm
4439637a314f3bb60970795d614022b1  6.2/i386/modutils-2.3.21-0.6.2.i386.rpm
c063d22e0aeeaa762e5bd9903af42cc3  6.2/sparc/modutils-2.3.21-0.6.2.sparc.rpm
3ae5ad039cb895f0599d4d52ccf61275  7.0/SRPMS/modutils-2.3.21-1.src.rpm
46b7f3331bccd927d9d7fefbec74f721  7.0/i386/modutils-2.3.21-1.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
     http://www.Red Hat.com/corp/contact.html

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:

N/A


Copyright(c) 2000 Red Hat, Inc.

 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.