kernel_security_alert

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Subject: [RHSA-2000:037-01] New Linux kernel fixes security bug
From: bugzilla@redhat.com
Date: Wed, 21 Jun 2000 12:38 -0400

Red Hat, Inc. Security Advisory

Synopsis:          New Linux kernel fixes security bug
Advisory ID:       RHSA-2000:037-01
Issue date:        2000-06-20
Updated on:        2000-06-20
Product:           Red Hat Linux
Keywords:          capabilities setuid suid agpgart 810 aacraid 3x90x MegaRAID Acenic
Cross references:  N/A
---------------------------------------------------------------------

1. Topic:

This new kernel release fixes a security hole that could
affect any setuid program on the system.  In addition,
several accumulated fixes are included.

2. Relevant releases/architectures:

Red Hat Linux 6.0 - i386 alpha sparc
Red Hat Linux 6.1 - i386 alpha sparc
Red Hat Linux 6.2 - i386 alpha sparc

3. Problem description:

A security bug involving setuid programs is fixed in
this kernel.

Added or updated drivers include:
  Updated AMI MegaRAID driver
  Updated Acenic Gigabit Ethernet driver
  Added Adaptec RAID (aacraid) driver
  Updated to latest 3c90x driver from 3Com
  Updated agpgart handling for latest Intel 810 chipset
  Updated SCSI error handling

An error case in raw I/O handling was fixed.

4. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

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

11998 - Local root vulnerability in the kernel capabilities feature


6. RPMs required:

Red Hat Linux 6.2:

intel:
ftp://updates.redhat.com/6.2/i386/kernel-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-headers-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-source-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-doc-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-utils-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-smp-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-BOOT-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-pcmcia-cs-2.2.16-3.i386.rpm
ftp://updates.redhat.com/6.2/i386/kernel-ibcs-2.2.16-3.i386.rpm

alpha:
ftp://updates.redhat.com/6.2/alpha/kernel-2.2.16-3.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/kernel-headers-2.2.16-3.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/kernel-source-2.2.16-3.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/kernel-doc-2.2.16-3.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/kernel-utils-2.2.16-3.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/kernel-smp-2.2.16-3.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/kernel-BOOT-2.2.16-3.alpha.rpm

sparc:
ftp://updates.redhat.com/6.2/sparc/kernel-2.2.16-3.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/kernel-headers-2.2.16-3.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/kernel-source-2.2.16-3.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/kernel-doc-2.2.16-3.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/kernel-utils-2.2.16-3.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/kernel-smp-2.2.16-3.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/kernel-BOOT-2.2.16-3.sparc.rpm

sources:
ftp://updates.redhat.com/6.2/SRPMS/kernel-2.2.16-3.src.rpm

7. Verification:

MD5 sum                           Package Name
--------------------------------------------------------------------------
7135cd70a5b0896574a38363867637e2  6.2/SRPMS/kernel-2.2.16-3.src.rpm
8d2d1a5312c847a422633abde5178733  6.2/alpha/kernel-2.2.16-3.alpha.rpm
358b77b381dcf7e6e95e181eb271f368  6.2/alpha/kernel-BOOT-2.2.16-3.alpha.rpm
3306014cf0d5d3cd6aaf3eb7b495c786  6.2/alpha/kernel-doc-2.2.16-3.alpha.rpm
89e60b43d47202dc7a237e287b60a39f  6.2/alpha/kernel-headers-2.2.16-3.alpha.rpm
6a166b661bc6e6b078d111c2a18ef1bf  6.2/alpha/kernel-smp-2.2.16-3.alpha.rpm
88f53a2105dbf03801b10abc1ddfbbd8  6.2/alpha/kernel-source-2.2.16-3.alpha.rpm
51914ffb09fbe7df6d12a10f713f0b0a  6.2/alpha/kernel-utils-2.2.16-3.alpha.rpm
f639d81c76c4a35332f3f4b8bae40b0c  6.2/i386/kernel-2.2.16-3.i386.rpm
08aa0ee0e630c0b740bca1eb630b598c  6.2/i386/kernel-BOOT-2.2.16-3.i386.rpm
e6de480a599e9b4faa7cceab4ed73ce9  6.2/i386/kernel-doc-2.2.16-3.i386.rpm
438d3cfcf28ca7beb39a94b4bd438cec  6.2/i386/kernel-headers-2.2.16-3.i386.rpm
2b5026d45dc07324324dcb4cf936afe4  6.2/i386/kernel-ibcs-2.2.16-3.i386.rpm
dcdf1ba8a2154b15789a3f660c71c166  6.2/i386/kernel-pcmcia-cs-2.2.16-3.i386.rpm
94a8f4a294d743b78078274ef30722b8  6.2/i386/kernel-smp-2.2.16-3.i386.rpm
409750698f4d7a21ba3527880c2017fe  6.2/i386/kernel-source-2.2.16-3.i386.rpm
4a7bb771616f294803342e71912a2847  6.2/i386/kernel-utils-2.2.16-3.i386.rpm
4deba2b9f3285d63b96daef2bcd599e4  6.2/sparc/kernel-2.2.16-3.sparc.rpm
514d9ce2b85ec5954bf47e609a7f2048  6.2/sparc/kernel-BOOT-2.2.16-3.sparc.rpm
d776ec3b12207a7122e13c802102b731  6.2/sparc/kernel-doc-2.2.16-3.sparc.rpm
43fc3b6f6c71b232407c6099f444d9e8  6.2/sparc/kernel-headers-2.2.16-3.sparc.rpm
3c509252e3d9a681afc2598ad28a688a  6.2/sparc/kernel-smp-2.2.16-3.sparc.rpm
0839ab7161bc75b40b09a0bbf7625a74  6.2/sparc/kernel-source-2.2.16-3.sparc.rpm
a9d8ebf3009225593ca63e9d587bd123  6.2/sparc/kernel-utils-2.2.16-3.sparc.rpm

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

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:

N/A

===

Subject: Warning regarding new kernel RPMs
From: Joseph V Moss <jmoss@ichips.intel.com>
Date: Wed, 21 Jun 2000 13:49:23 -0700

The instructions in RHSA-2000:037-01 (2.2.16 kernel update) tell you:

    4. Solution:

    For each RPM for your particular architecture, run:

    rpm -Fvh [filename]

    where filename is the name of the RPM.

These instructions are incomplete and may result in a system that
is unbootable.

After updating the RPM files, you should also:

	(1) run mkinitrd to create a new initial ramdisk image
		[this step may not be necessary on some systems]

	(2) update your lilo.conf file

	(3) run /sbin/lilo



===

Subject: Re: Warning regarding new kernel RPMs
From: "John P. Verel" <jverel@home.com>
Date: Wed, 21 Jun 2000 22:22:13 -0400

There is also an extensive Howto on kernel upgrade on the Redhat
Site.  The update instructions, IMHO, are remiss in not pointing there.

===




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