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[RHSA-2000:108-03] Updated modutils fixing local root security bug available

                   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  <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:
    rpm --checksig --nogpg <filename>

8. References:


Copyright(c) 2000 Red Hat, Inc.

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