Debian alert: New Linux 2.4.17 packages fix local root exploit (source+powerpc/apus+s390)

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Debian Security Advisory DSA 482-1                     [e-mail:security@debian.org]
http://www.debian.org/security/                             Martin Schulze
April 14th, 2004                        http://www.debian.org/security/faq
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Package        : kernel-source-2.4.17 kernel-patch-2.4.17-apus kernel-patch-2.4.17-s390 kernel-image-2.4.17-s390
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 2.4.17 for the PowerPC/apus and S/390
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 for this.

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
architectures are already fixed.

Architecture    stable (woody)     unstable (sid)
source          2.4.17-1woody3     2.4.25-3
powerpc/apus    2.4.17-5           2.4.25-2
s390            2.4.17-2.woody.4   2.4.25-2 (and probably 2.4.21-3)

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
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  Source archives:

    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.17/kernel-source-2.4.17_2.4.17-1woody3.dsc
      Size/MD5 checksum:      690 222d67d058984eef34ef3af56ad82720
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.17/kernel-source-2.4.17_2.4.17-1woody3.diff.gz
      Size/MD5 checksum:    41918 dce13eeca598d548e390a72fed76728f
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.17/kernel-source-2.4.17_2.4.17.orig.tar.gz
      Size/MD5 checksum: 29445154 d5de2a4dc49e32c37e557ef856d5d132

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-apus/kernel-patch-2.4.17-apus_2.4.17-5.dsc
      Size/MD5 checksum:      673 f7a70b5e604e74feedba42eb41608a13
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-apus/kernel-patch-2.4.17-apus_2.4.17-5.tar.gz
      Size/MD5 checksum:   490001 54f9f6b973b4c945d548510290cb122a

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-s390/kernel-patch-2.4.17-s390_0.0.20020816-0.woody.3.dsc
      Size/MD5 checksum:      754 d9b64c461d849aeab5a1bb71322f14ec
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-s390/kernel-patch-2.4.17-s390_0.0.20020816-0.woody.3.diff.gz
      Size/MD5 checksum:     6254 85fd6863f93bfa474b854f4dfbda4034
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-s390/kernel-patch-2.4.17-s390_0.0.20020816.orig.tar.gz
      Size/MD5 checksum:   338001 5979fbe7c3325033536dfd3914e22dbd

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-s390/kernel-image-2.4.17-s390_2.4.17-2.woody.4.dsc
      Size/MD5 checksum:      799 51d3be5adf8d79e3a0f3045f2235c52a
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-s390/kernel-image-2.4.17-s390_2.4.17-2.woody.4.tar.gz
      Size/MD5 checksum:     8289 9b02431ce5f6741183b2614d5d9f9f4a


  Architecture independent components:

    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.17/kernel-doc-2.4.17_2.4.17-1woody3_all.deb
      Size/MD5 checksum:  1720294 3b6e8a510996bebd066d1cda8bac41eb
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.17/kernel-source-2.4.17_2.4.17-1woody3_all.deb
      Size/MD5 checksum: 23880582 542792a28d1fc90844f9b51abe84f90e

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-s390/kernel-patch-2.4.17-s390_0.0.20020816-0.woody.3_all.deb
      Size/MD5 checksum:   300768 c8116357d604508ff0e50cc8295005f0

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-apus/kernel-headers-2.4.17-apus_2.4.17-5_powerpc.deb
      Size/MD5 checksum:  3366150 3331dac5b42b3cd42e0dcdc7ad574f60
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-apus/kernel-image-2.4.17-apus_2.4.17-5_powerpc.deb
      Size/MD5 checksum:  2211544 f24006c8b07774bccb2ad22af4f95465
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-apus/kernel-image-apus_2.4.17-5_powerpc.deb
      Size/MD5 checksum:     4498 89ac0312fa91e6911ed366dd22bef2b9
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-apus/kernel-patch-2.4.17-apus_2.4.17-5_powerpc.deb
      Size/MD5 checksum:   490786 228a12c3a523f86f089121dca964bac7

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-s390/kernel-headers-2.4.17_2.4.17-2.woody.4_s390.deb
      Size/MD5 checksum:  3335728 14f64e559f9ccb97876df9a0248b8069
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.17-s390/kernel-image-2.4.17-s390_2.4.17-2.woody.4_s390.deb
      Size/MD5 checksum:  1343254 25bad4dcb964e713467344bf8a5fd31f


  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: [e-mail:debian-security-announce@lists.debian.org]
Package info: 'apt-cache show ' and http://packages.debian.org/

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