Mandrake Linux Advisory: kernel

Mandrake Linux Security Update Advisory

Problem Description:

Multiple vulnerabilities were discovered and fixed in the Linux
kernel.

• CAN-2003-0001: Multiple ethernet network card drivers do not
  pad frames with null bytes which allows remote attackers to obtain
  information from previous packets or kernel memory by using special
  malformed packets.
• CAN-2003-0244: The route cache implementation in the 2.4 kernel
  and the Netfilter IP conntrack module allows remote attackers to
  cause a Denial of Service (DoS) via CPU consumption due to packets
  with forged source addresses that cause a large number of hash
  table collisions related to the PREROUTING chain.
• CAN-2003-0246: The ioperm implementation in 2.4.20 and earlier
  kernels does not properly restrict privileges, which allows local
  users to gain read or write access to certain I/O ports.
• CAN-2003-0247: A vulnerability in the TTY layer of the 2.4
  kernel allows attackers to cause a kernel oops resulting in a
  DoS.
• CAN-2003-0248: The mxcsr code in the 2.4 kernel allows
  attackers to modify CPU state registers via a malformed
  address.

As well, a number of bug fixes were made in the 9.1 kernel
including:

• Support for more machines that did not work with APIC
• Audigy2 support
• New/updated modules: prims25, adiusbadsl, thinkpad, ieee1394,
  orinoco, via-rhine,
• Fixed SiS IOAPIC
• IRQ balancing has been fixed for SMP
• Updates to ext3
• The previous ptrace fix has been redone to work better

MandrakeSoft encourages all users to upgrade to these new
kernels. Updated kernels will be available shortly for other
supported platforms and architectures.

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0001

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0244

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0246

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0247

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0248

Updated Packages:

Mandrake Linux 9.1:
bca5bada0476e53911f157e9ec5ca504
9.1/RPMS/kernel-2.4.21.0.18mdk-1-1mdk.i586.rpm
57ee4b2b038598cbd020f1e0752a61dd
9.1/RPMS/kernel-BOOT-2.4.21.0.18mdk-1-1mdk.i586.rpm
b14c3291fab83bd1894c8b5217311dfa
9.1/RPMS/kernel-doc-2.4.21-0.18mdk.i586.rpm
ed766922171751e1f05c6ce590af9755
9.1/RPMS/kernel-enterprise-2.4.21.0.18mdk-1-1mdk.i586.rpm
64c554564115626ff86cf3fd5e40ece1
9.1/RPMS/kernel-secure-2.4.21.0.18mdk-1-1mdk.i586.rpm
944017f71e79714767d94517cd41110d
9.1/RPMS/kernel-smp-2.4.21.0.18mdk-1-1mdk.i586.rpm
9621bebecb94bc6031ffaa073c4967f1
9.1/RPMS/kernel-source-2.4.21-0.18mdk.i586.rpm
9d0c651808a2874256489f3a90ad6fdb
9.1/SRPMS/kernel-2.4.21.0.18mdk-1-1mdk.src.rpm

Bug IDs fixed (see https://qa.mandrakesoft.com for
more information):

To upgrade automatically, use MandrakeUpdate. The verification
of md5 checksums and GPG signatures is performed automatically for
you.

If you want to upgrade manually, download the updated package
from one of our FTP server mirrors and upgrade with “rpm -Fvh
*.rpm”. A list of FTP mirrors can be obtained from:

http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the
integrity of the downloaded package. You can do this with the
command:

rpm –checksig <filename>

All packages are signed by MandrakeSoft for security. You can
obtain the GPG public key of the Mandrake Linux Security Team
from:

https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours
to update.

You can view other update advisories for Mandrake Linux at:

http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services
that anyone can subscribe to. Information on these lists can be
obtained by visiting:

http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

security_linux-mandrake.com

<security linux-mandrake.com>