[SECURITY] [DSA 495-1] New Linux 2.4.16 packages fix local root exploit (arm)

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Debian Security Advisory DSA 495-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
April 26th, 2004                        http://www.debian.org/security/faq
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Package        : kernel-source-2.4.16 kernel-patch-2.4.16-arm kernel-image-2.4.16-lart kernel-image-2.4.16-netwinder kernel-image-2.4.16-riscpc
Vulnerability  : several vulnerabilities
Problem-Type   : local
Debian-specific: no
CVE ID         : CAN-2003-0127 CAN-2004-0003 CAN-2004-0010 CAN-2004-0109 CAN-2004-0177 CAN-2004-0178
Bugtraq ID     : 10152

Several serious problems have been discovered in the Linux kernel.
This update takes care of Linux 2.4.16 for the ARM architecture.  The
Common Vulnerabilities and Exposures project identifies the following
problems that will be fixed with this update:

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-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 a local attacker could obtain sensitive
    information (such as cryptographic keys in another worst case)
    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 are also fixed by upstream in Linux 2.4.26 and will be
fixed in Linux 2.6.6.

The following security matrix explains which kernel versions for which
architectures are already fixed and which will be removed instead.

Architecture      stable (woody)            unstable (sid)
source            2.4.16-1woody2            2.4.25-3
arm/patch         20040419                  20040316
arm/lart          20040419                  2.4.25-4
arm/netwinder     20040419                  2.4.25-4
arm/riscpc        20040419                  2.4.25-4

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-2.4.16/kernel-source-2.4.16_2.4.16-1woody2.dsc
      Size/MD5 checksum:      680 a1ea1561bea3bfeb7b4759a77984b8bf
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.16/kernel-source-2.4.16_2.4.16-1woody2.diff.gz
      Size/MD5 checksum:    22668 16b2b377f1e557d40d3a80db9cb8ad54
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.16/kernel-source-2.4.16_2.4.16.orig.tar.gz
      Size/MD5 checksum: 29364642 8e42e72848dc5098b6433d66d5cacffc

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.16-arm/kernel-patch-2.4.16-arm_20040419.dsc
      Size/MD5 checksum:      562 c63fd9d71828e954548b556d5e125240
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.16-arm/kernel-patch-2.4.16-arm_20040419.tar.gz
      Size/MD5 checksum:   578921 77cd43dd95b087612e8c7cb3234317f7

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-lart/kernel-image-2.4.16-lart_20040419.dsc
      Size/MD5 checksum:      586 f8e8f67e3f7d83372c837207651faab0
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-lart/kernel-image-2.4.16-lart_20040419.tar.gz
      Size/MD5 checksum:    16487 3f60ce2e0b02188b8329f3b6c2e55058

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-image-2.4.16-netwinder_20040419.dsc
      Size/MD5 checksum:      624 65fe313bb761c5bbd9ae635a74dd91c6
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-image-2.4.16-netwinder_20040419.tar.gz
      Size/MD5 checksum:    21816 18e2386e66448e393060422f62e8e6ca

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-riscpc/kernel-image-2.4.16-riscpc_20040419.dsc
      Size/MD5 checksum:      592 ec5c07d4e0e680b977cf75b638718367
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-riscpc/kernel-image-2.4.16-riscpc_20040419.tar.gz
      Size/MD5 checksum:    19142 e72a1ed0b5acd3daa71f2b9e61b1deb4

  Architecture independent components:

    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.16/kernel-doc-2.4.16_2.4.16-1woody2_all.deb
      Size/MD5 checksum:  1715626 bc7aec1ea3e2fda01fd6d2866421dbdc
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.16/kernel-source-2.4.16_2.4.16-1woody2_all.deb
      Size/MD5 checksum: 23808362 7a26ba7741038abddd79ce3cf331cd29

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.16-arm/kernel-patch-2.4.16-arm_20040419_all.deb
      Size/MD5 checksum:   583052 df208765fa1a440633145a644b70b7d6

  ARM architecture:

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-lart/kernel-image-2.4.16-lart_20040419_arm.deb
      Size/MD5 checksum:   717236 7eafa0d8bf0316b8474c8caf4510d333

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-headers-2.4.16_20040419_arm.deb
      Size/MD5 checksum:  3435640 9a2fbd1d8f65bfbfdac66575ed8e28d0
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-netwinder/kernel-image-2.4.16-netwinder_20040419_arm.deb
      Size/MD5 checksum:  6671270 122d99d7819f3f66485f8a77dab09f31

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.16-riscpc/kernel-image-2.4.16-riscpc_20040419_arm.deb
      Size/MD5 checksum:  2910474 20602cbdb8783b01c9b32e174cd4d4bd


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

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