Articles / Debian: New Linux 2.4.18 pa…

Debian: New Linux 2.4.18 packages fix local root exploit

Several serious problems have been discovered in the Linux kernel. A vulnerability has been discovered in the R128 drive in the Linux kernel which could potentially lead an attacker to gain unauthorised privileges. Arjan van de Ven discovered a stack-based buffer overflow in the ncp_lookup function for ncpfs in the Linux kernel, which could lead an attacker to gain unauthorised privileges. zen-parse discovered a buffer overflow vulnerability in the ISO9660 filesystem component of Linux kernel which could be abused by an attacker to gain unauthorised root access. Solar Designer discovered an information leak in the ext3 code of Linux. In a worst case an attacker could read sensitive data such as cryptographic keys which would otherwise never hit disk media. Andreas Kies discovered a denial of service condition in the Sound Blaster driver in Linux. Fixed packages are available from security.debian.org.
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Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 479-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
April 14th, 2004                        http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : kernel-source-2.4.18 kernel-image-2.4.18-1-alpha kernel-image-2.4.18-1-i386 kernel-image-2.4.18-i386bf kernel-patch-2.4.18-powerpc
Vulnerability  : several vulnerabilities
Problem-Type   : local
Debian-specific: no
CVE ID         : CAN-2004-0003 CAN-2004-0010 CAN-2004-0109 CAN-2004-0177 CAN-2004-0178

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.18 for the alpha, i386 and powerpc
architectures.  The Common Vulnerabilities and Exposures project
identifies the following problems that will be fixed with this update:

CAN-2004-0003

    A vulnerability has been discovered in the R128 drive in the Linux
    kernel which could potentially lead an attacker to gain
    unauthorised privileges.  Alan Cox and Thomas Biege developed a
    correction for this

CAN-2004-0010

    Arjan van de Ven discovered a stack-based buffer overflow in the
    ncp_lookup function for ncpfs in the Linux kernel, which could
    lead an attacker to gain unauthorised privileges.  Petr Vandrovec
    developed a correction for this.

CAN-2004-0109

    zen-parse discovered a buffer overflow vulnerability in the
    ISO9660 filesystem component of Linux kernel which could be abused
    by an attacker to gain unauthorised root access.  Sebastian
    Krahmer and Ernie Petrides developed a correction for this.

CAN-2004-0177

    Solar Designer discovered an information leak in the ext3 code of
    Linux.  In a worst case an attacker could read sensitive data such
    as cryptographic keys which would otherwise never hit disk media.
    Theodore Ts'o developed a correction for this.

CAN-2004-0178

    Andreas Kies discovered a denial of service condition in the Sound
    Blaster driver in Linux.  He also developed a correction.

These problems will also be fixed by upstream in Linux 2.4.26 and
future versions of 2.6.

The following security matrix explains which kernel versions for which
architecture are already fixed.  Kernel images in the unstable Debian
distribution (sid) will be fixed soon.

Architecture    stable (woody)     unstable (sid)    removed in sid
source          2.4.18-14.3        2.4.25-3          --
alpha           2.4.18-15          soon              --
i386            2.4.18-13          soon              --
i386bf          2.4.18-5woody8     soon              --
powerpc         2.4.18-1woody5     2.4.25-8          2.4.22

We recommend that you upgrade your kernel packages immediately, either
with a Debian provided kernel or with a self compiled one.


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-source-2.4.18/kernel-source-2.4.18_2.4.18-14.3.dsc
      Size/MD5 checksum:      664 a9d96cc8553c3a9085bad09e071c5814
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.3.diff.gz
      Size/MD5 checksum:    70724 4de077af92c196a6af7797d1ceea4004
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18.orig.tar.gz
      Size/MD5 checksum: 29818323 24b4c45a04a23eb4ce465eb326a6ddf2

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-alpha_2.4.18-15.dsc
      Size/MD5 checksum:      876 453a2a47eb3c6b748e75e0cb65bdd6bb
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-alpha_2.4.18-15.tar.gz
      Size/MD5 checksum:    24922 f822e7999659ddcfd53dee73894afdc1

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-i386_2.4.18-13.dsc
      Size/MD5 checksum:     1327 d37593f6e47c2b9809530eb54deeae3e
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-i386_2.4.18-13.tar.gz
      Size/MD5 checksum:    70213 c795ba781adbd8a19202d8d986a3d0da

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-i386bf_2.4.18-5woody8.dsc
      Size/MD5 checksum:      656 278af48a357187864c52382eeb13451d
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-i386bf_2.4.18-5woody8.tar.gz
      Size/MD5 checksum:    26780 1f0c2eba8d3d90eef1a183f6b27f1fff

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody5.dsc
      Size/MD5 checksum:      713 77511f3afefed1dd71c1f73e2e036000
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody5.tar.gz
      Size/MD5 checksum:    79970 2720d9864cdd05bfc6b3bd7228ca9083

  Architecture independent components:

    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-doc-2.4.18_2.4.18-14.3_all.deb
      Size/MD5 checksum:  1720106 f25772ce2d398adc25509a1ae040c76f
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.3_all.deb
      Size/MD5 checksum: 24138244 d63666d64cb91f59f2feded30ef8ea70

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody5_all.deb
      Size/MD5 checksum:    79722 d822eaa6adcdd517d600d62c819db7b6

  Alpha architecture:

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1_2.4.18-15_alpha.deb
      Size/MD5 checksum:  3363486 862f6e8f85737dd13c6ca9b760384f1a
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-generic_2.4.18-15_alpha.deb
      Size/MD5 checksum:  3512910 935ef424b222d336a642b2e7cd291e4a
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-smp_2.4.18-15_alpha.deb
      Size/MD5 checksum:  3515528 6ef19a362ec019e79fdb057fea1c9fc2
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-generic_2.4.18-15_alpha.deb
      Size/MD5 checksum: 12424690 725ff255cf8941cfb5c77581d8a518d4
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-smp_2.4.18-15_alpha.deb
      Size/MD5 checksum: 12801130 8d15f05215223ffcf9b11b3f682667d3

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1_2.4.18-13_i386.deb
      Size/MD5 checksum:  3429534 1aac0648c6f5fdee84721799806ef07a
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-386_2.4.18-13_i386.deb
      Size/MD5 checksum:  3446290 a13776eb95c3661696f86e06a6dbac48
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-586tsc_2.4.18-13_i386.deb
      Size/MD5 checksum:  3446482 233230438756120878a4e4b96876e61b
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-686_2.4.18-13_i386.deb
      Size/MD5 checksum:  3446444 b5f8437bfd3279ed3f4b2f63fc2d75f5
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-686-smp_2.4.18-13_i386.deb
      Size/MD5 checksum:  3446458 6dbbfba03667156316b184bd939d21e2
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-k6_2.4.18-13_i386.deb
      Size/MD5 checksum:  3446350 ff76c153c3eb285b1f7b035223bc1e39
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-k7_2.4.18-13_i386.deb
      Size/MD5 checksum:  3446324 dc2a142c75db787fdeb8a0c8e8941d1a
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-386_2.4.18-13_i386.deb
      Size/MD5 checksum:  1154336 96f1e8262a5b11a8498d70643e87f546
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-586tsc_2.4.18-13_i386.deb
      Size/MD5 checksum:  1154362 8b4bc947b6ab39a2deb0731f891889f3
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-686_2.4.18-13_i386.deb
      Size/MD5 checksum:  1154358 a6e7db160b30f90711be11260128a6bb
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-686-smp_2.4.18-13_i386.deb
      Size/MD5 checksum:  1154414 cde845ca2c7b351ce79b66965a04a748
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-k6_2.4.18-13_i386.deb
      Size/MD5 checksum:  1154338 407aa3a3a95aa5cd8aaf5b34b306b1a4
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-k7_2.4.18-13_i386.deb
      Size/MD5 checksum:  1154342 152aca9d4a2d7014a9834c239d754d0e
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-386_2.4.18-13_i386.deb
      Size/MD5 checksum:     5746 9a5675e9da37620b2b3c8dc1aebfa5d0
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-586tsc_2.4.18-13_i386.deb
      Size/MD5 checksum:     5758 325071afd718f4c0c1ba8769aba9864d
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-686_2.4.18-13_i386.deb
      Size/MD5 checksum:     5778 212f47c992067729e8eb3da05c89c242
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-686-smp_2.4.18-13_i386.deb
      Size/MD5 checksum:     5804 683e3a330cfde650ede99e8a6a771149
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-k6_2.4.18-13_i386.deb
      Size/MD5 checksum:     5760 8a73b13a799928232f5028be37356ad2
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-k7_2.4.18-13_i386.deb
      Size/MD5 checksum:     5762 be2713125a6111ab76458e07d42f3634

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-headers-2.4.18-bf2.4_2.4.18-5woody8_i386.deb
      Size/MD5 checksum:  3411032 c97ea4fcff846ac6d0dc945d601cb97c
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-bf2.4_2.4.18-5woody8_i386.deb
      Size/MD5 checksum:  6425640 83dc812db817e703eaa21451d048f4f7

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-headers-2.4.18_2.4.18-1woody5_powerpc.deb
      Size/MD5 checksum:  3433044 0836b0d1fbcc5c9f440d5c75ff14f006
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-newpmac_2.4.18-1woody5_powerpc.deb
      Size/MD5 checksum:  9456688 4473c2577d3be988993219b82ed90eda
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc_2.4.18-1woody5_powerpc.deb
      Size/MD5 checksum: 10105472 ae0b1d57bfc8593d9aa4ad1403044607
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc-smp_2.4.18-1woody5_powerpc.deb
      Size/MD5 checksum: 10351786 f84fe609d7192a51c4f091c1c0893680


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

- ---------------------------------------------------------------------------------
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@lists.debian.org
Package info: `apt-cache show ' and http://packages.debian.org/

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