N-096: Red Hat New Kernel Fixes Local Security Issues Privacy and Legal Notice

CIAC INFORMATION BULLETIN

N-096: Red Hat New Kernel Fixes Local Security Issues

[Red Hat Security Advisory RHSA-2002:206-13]

May 14, 2003 18:00 GMT
[REVISED May 15, 2003]

PROBLEM: Red Hat has released updates to fix vulnerabilities in the Linux kernel. The vulnerabilities were found in the ixj telephony card driver, the pcilynx firewire driver, and the bttv video capture card driver. Also a number of bugs have been fixed in the IDE tapestreamer driver.
PLATFORM: Red Hat Linux 7.3
Red Hat Linux 8.0
DAMAGE: Exploiting any of these vulnerabilities could allow a local user to obtain elevated (root) privileges.
SOLUTION: Apply patches as stated in Red Hat's bulletin.

VULNERABILITY
ASSESSMENT:
The risk is MEDIUM. A security code audit of the 2.4 kernel found a number of possible local security vulnerabilities. All Red Hat Linux 7.3 and 8.0 users should upgrade to this errata kernel which is not vulnerable to these security issues.

LINKS:  
  CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-096.shtml
  ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2002-206.html

   
   
REVISION HISTORY:
5/15/03 - updated package information with "File Outdated..." statements.

[***** Start Red Hat Security Advisory RHSA-2002:206-13 *****]

New kernel fixes local security issues

    Advisory:           RHSA-2002:206-13
    Last updated on:    2003-05-14
    Affected Products:  Red Hat Linux 7.3
                        Red Hat Linux 8.0


Security Advisory 


Details:

Updated kernel fixes local security issues and provides several updated
   drivers to support newer hardware and fix bugs under Red Hat Linux 7.3.

   [Update 8 May 2003]
   Added missing modutils-devel packages for Red Hat Linux 7.3

   The Linux kernel handles the basic functions of the operating system. A
   security code audit of the 2.4 kernel found a number of possible local
   security vulnerabilities which could allow a local user to obtain elevated
   (root) privileges. The vulnerabilities were found in the ixj telephony card
   driver, the pcilynx firewire driver, and the bttv video capture card driver.

   In addition, several drivers (e100, e1000, tg3n and IDE) have been updated
   to support newer hardware for Red Hat Linux 7.3, and a number of bugs have
   been fixed in IDE tapestreamer driver.

   All Red Hat Linux 7.3 and 8.0 users should upgrade to this errata kernel
   which is not vulnerable to these security issues.

   NOTE: As with the 8.0 release, IDE DMA on CD-ROM drives is disabled by
   default. If you are sure that your CD-ROM drive is capable of IDE
   DMA, place the following line in the /etc/modules.conf file:

   options ide-cd dma=1

   Thanks to Silvio Cesare for finding the local security issues.


   Updated packages:

    Red Hat Linux 7.3

    SRPMS:
    hwdata-0.14.1-1.src.rpm
    [ via FTP ] [ via HTTP ]
                                            5c742d695efa74cce26a070a018561b6
    kernel-2.4.18-17.7.x.src.rpm
    File outdated by:  RHSA-2003:172
                                            d0cf8ef64412c78c9d32da9d0cb9850d
    modutils-2.4.18-3.7x.src.rpm
    [ via FTP ] [ via HTTP ]
                                            0414620fa83d72ffd9f128be2e4bf430
     
    athlon:
    kernel-2.4.18-17.7.x.athlon.rpm
    File outdated by:  RHSA-2003:172
                                            082114a540f7bd692476584e38c6cd5c
    kernel-smp-2.4.18-17.7.x.athlon.rpm
    File outdated by:  RHSA-2003:172
                                            bd2fa5b6b721caf12dcea357304c008b
     
    i386:
    kernel-2.4.18-17.7.x.i386.rpm
    File outdated by:  RHSA-2003:172
                                            cfdef58820f5d7701f4221c80a7c821b
    kernel-BOOT-2.4.18-17.7.x.i386.rpm
    File outdated by:  RHSA-2003:172
                                            145d063537e3a34723d50e611cbd37a8
    kernel-doc-2.4.18-17.7.x.i386.rpm
    File outdated by:  RHSA-2003:172
                                            8d9a20e2f4d82cc262cab928910377fa
    kernel-source-2.4.18-17.7.x.i386.rpm
    File outdated by:  RHSA-2003:172
                                            0344cc1d42651916fb91ed7a700f3f90
    modutils-2.4.18-3.7x.i386.rpm
    [ via FTP ] [ via HTTP ]
                                            cddd8196a38dbff1a8e34429415670fb
    modutils-devel-2.4.18-3.7x.i386.rpm
    [ via FTP ] [ via HTTP ]
                                            8c663b5015ba81b2ebef80307a37885f
     
    i586:
    kernel-2.4.18-17.7.x.i586.rpm
    File outdated by:  RHSA-2003:172
                                            576ceca80b035a10b942e6feb217c055
    kernel-smp-2.4.18-17.7.x.i586.rpm
    File outdated by:  RHSA-2003:172
                                            d9d2b3fa23ee4733b35fd730e9553625
     
    i686:
    kernel-2.4.18-17.7.x.i686.rpm
    File outdated by:  RHSA-2003:172
                                            3a3afd67620fc36de17876629398dceb
    kernel-bigmem-2.4.18-17.7.x.i686.rpm
    File outdated by:  RHSA-2003:172
                                            fe9a658e1e22defc3cf5e2134646a6eb
    kernel-debug-2.4.18-17.7.x.i686.rpm
    File outdated by:  RHSA-2003:098
                                            158c941a9b430581a7bcd23ec1398052
    kernel-smp-2.4.18-17.7.x.i686.rpm
    File outdated by:  RHSA-2003:172
                                            f9e11d26c2ca35ef403656be882fb592
     
    noarch:
    hwdata-0.14.1-1.noarch.rpm
    [ via FTP ] [ via HTTP ]
                                            100b8e47ecde440cca8122a08fb59b81
     
    Red Hat Linux 8.0

    SRPMS:
    hwdata-0.48-1.src.rpm
    [ via FTP ] [ via HTTP ]
                                            eb9d565f55332264a15afadfc2e2b1a6
    kernel-2.4.18-17.8.0.src.rpm
    File outdated by:  RHSA-2003:172
                                            11c9a0e4224f20712b24805fd4e5f0be
     
    athlon:
    kernel-2.4.18-17.8.0.athlon.rpm
    File outdated by:  RHSA-2003:172
                                            0ccc7295596f093121f4e2ae9767ebd1
    kernel-smp-2.4.18-17.8.0.athlon.rpm
    File outdated by:  RHSA-2003:172
                                            e0e77e845a0b2e491150cf4e892d6c24
     
    i386:
    kernel-2.4.18-17.8.0.i386.rpm
    File outdated by:  RHSA-2003:172
                                            47870d4e2b646a59c8ade167f38575e6
    kernel-BOOT-2.4.18-17.8.0.i386.rpm
    File outdated by:  RHSA-2003:172
                                            9e38f1aeebbc862dcf050b936dcc781e
    kernel-doc-2.4.18-17.8.0.i386.rpm
    File outdated by:  RHSA-2003:172
                                            78734f41ea1ba399f0a7d60f7d46bb8f
    kernel-source-2.4.18-17.8.0.i386.rpm
    File outdated by:  RHSA-2003:172
                                            c869e31fdd68ae7b1beae942282717b4
     
    i586:
    kernel-2.4.18-17.8.0.i586.rpm
    File outdated by:  RHSA-2003:172
                                            49a2d9c5add3431c395574c7456f5596
    kernel-smp-2.4.18-17.8.0.i586.rpm
    File outdated by:  RHSA-2003:172
                                            69ece85c6df4002f7e071c4b210c204f
     
    i686:
    kernel-2.4.18-17.8.0.i686.rpm
    File outdated by:  RHSA-2003:172
                                            f05ebe7ff48fea54ed013018f1133b5e
    kernel-bigmem-2.4.18-17.8.0.i686.rpm
    File outdated by:  RHSA-2003:172
                                            9b9a868c08b100dbd5c1f7458fd5331d
    kernel-debug-2.4.18-17.8.0.i686.rpm
    File outdated by:  RHSA-2003:098
                                            c8e06fe44752510d49ad227ab01f323c
    kernel-smp-2.4.18-17.8.0.i686.rpm
    File outdated by:  RHSA-2003:172
                                            f5efa4f4d8db58a413a41bc66c13c3da
     
    noarch:
    hwdata-0.48-1.noarch.rpm
    [ via FTP ] [ via HTTP ]
                                            d160a0e0aa78e76b5c9a7c229d516eb8
     


   Solution

   Before applying this update, make sure all previously released errata
   relevant to your system have been applied.

   The procedure for upgrading the kernel manually is documented at:

   http://www.redhat.com/support/docs/howto/kernel-upgrade/

   Please read the directions for your architecture carefully before
   proceeding with the kernel upgrade.

   Please note that this update is also available via Red Hat Network. Many
   people find this to be 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. Note that you need to select the kernel
   explicitly on default configurations of up2date.


   Bugs fixed:  (see bugzilla for more information)

   71622 - cs4232 module is not auto-loaded on use
   73339 - apm locks up Asus A7N266VM (nForce chipset)
   74589 - speedstep doesn't work on IBM ThinkPad T30 (pentium 4)
   74879 - aha152x driver broken
   75107 - boot time in /proc/stat is incorrect
   75113 - /proc/uptime shows wrong uptime (slightly) and idle time (totally)


   References:

   http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.18 


   The listed packages are GPG signed by Red Hat, Inc. for security. Our key is 
   available at:
   http://www.redhat.com/solutions/security/news/publickey/#key 

   You can verify each package and see who signed it 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 

   The Red Hat security contact is security@redhat.com. More contact details at
   http://www.redhat.com/solutions/security/news/contact.html

 
 Copyright © 2002 Red Hat, Inc. All rights reserved. Search by Google
 
[***** End Red Hat Security Advisory RHSA-2002:206-13 *****]


CIAC wishes to acknowledge the contributions of Red Hat for the information contained in this bulletin.
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