Message-ID: <20030610034232.GB16182__21773.6996979967$1055253258@alcor.net>
Date: Mon, 9 Jun 2003 23:42:32 -0400
From: Matt Zimmerman <mdz@...ian.org>
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA-312-1] New powerpc kernel fixes several vulnerabilities


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Debian Security Advisory DSA 312-1                     security@...ian.org
http://www.debian.org/security/                             Matt Zimmerman
June 9th, 2003                          http://www.debian.org/security/faq
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Package        : kernel-patch-2.4.18-powerpc
Vulnerability  : several
Problem-Type   : local, remote
Debian-specific: no
CVE Ids        : CVE-2002-0429 CAN-2003-0001 CAN-2003-0127 CAN-2003-0244 CAN-2003-0246 CAN-2003-0247 CAN-2003-0248 CAN-2003-0364

A number of vulnerabilities have been discovered in the Linux kernel.

- - CVE-2002-0429: The iBCS routines in arch/i386/kernel/traps.c for
  Linux kernels 2.4.18 and earlier on x86 systems allow local users to
  kill arbitrary processes via a a binary compatibility interface
  (lcall)

- - CAN-2003-0001: Multiple ethernet Network Interface Card (NIC) device
  drivers do not pad frames with null bytes, which allows remote
  attackers to obtain information from previous packets or kernel
  memory by using malformed packets

- - CAN-2003-0127: The kernel module loader allows local users to gain
  root privileges by using ptrace to attach to a child process that is
  spawned by the kernel

- - CAN-2003-0244: The route cache implementation in Linux 2.4, and the
  Netfilter IP conntrack module, allows remote attackers to cause a
  denial of service (CPU consumption) via packets with forged source
  addresses that cause a large number of hash table collisions related
  to the PREROUTING chain

- - CAN-2003-0246: The ioperm system call in Linux kernel 2.4.20 and
  earlier does not properly restrict privileges, which allows local
  users to gain read or write access to certain I/O ports.

- - CAN-2003-0247: vulnerability in the TTY layer of the Linux kernel
  2.4 allows attackers to cause a denial of service ("kernel oops")

- - CAN-2003-0248: The mxcsr code in Linux kernel 2.4 allows attackers
  to modify CPU state registers via a malformed address.

- - CAN-2003-0364: The TCP/IP fragment reassembly handling in the Linux
  kernel 2.4 allows remote attackers to cause a denial of service (CPU
  consumption) via certain packets that cause a large number of hash
  table collisions

This advisory covers only the powerpc architecture.  Other
architectures will be covered by separate advisories.

For the stable distribution (woody) on the powerpc architecture, these
problems have been fixed in version 2.4.18-1woody1.

For the unstable distribution (sid) these problems are fixed in
version 2.4.20-2.

We recommend that you update your kernel packages.

NOTE: A system reboot will be required immediately after the upgrade
in order to replace the running kernel.  Remember to read carefully
and follow the instructions given during the kernel upgrade process.

Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody1.dsc
      Size/MD5 checksum:      713 5e68ebec8c5964802d1c408dbb62d910
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody1.tar.gz
      Size/MD5 checksum:    79339 bfb459f978ac40898f8e10d5e302873d

  Architecture independent components:

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody1_all.deb
      Size/MD5 checksum:    78796 63903e7035ddc4c3c054d18c485aa54f

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-headers-2.4.18_2.4.18-1woody1_powerpc.deb
      Size/MD5 checksum:  3415000 6aeb5eab8171baf83cb8e81a30c9397f
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-newpmac_2.4.18-1woody1_powerpc.deb
      Size/MD5 checksum:  9450540 b66d57ddaa4d7dffe99024250935cee2
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc_2.4.18-1woody1_powerpc.deb
      Size/MD5 checksum: 10134844 b5e105cc2087c65889ea83eb29fd91ae
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc-smp_2.4.18-1woody1_powerpc.deb
      Size/MD5 checksum: 10379272 6829c60296a049950d79ddd0a488f8d4

  These files will probably be moved into the stable distribution on
  its next revision.

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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@...ts.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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