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Message-ID: <m1AtRlm-000pCSC__25659.8492771902$1077121752@finlandia.Infodrom.North.DE>
Date: Wed, 18 Feb 2004 14:29:42 +0100 (CET)
From: joey@...odrom.org (Martin Schulze)
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 438-1] New Linux 2.4.18 packages fix local root exploit (alpha+i386+powerpc)


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- --------------------------------------------------------------------------
Debian Security Advisory DSA 438-1                     security@...ian.org
http://www.debian.org/security/                             Martin Schulze
February 18th, 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  : missing function return value check
Problem-Type   : local
Debian-specific: no
CVE ID         : CAN-2004-0077

Paul Starzetz and Wojciech Purczynski of isec.pl discovered a critical
security vulnerability in the memory management code of Linux inside
the mremap(2) system call.  Due to missing function return value check
of internal functions a local attacker can gain root privileges.

For the stable distribution (woody) this problem has been fixed in
version 2.4.18-14.2 of kernel-source, version 2.4.18-14 of alpha
images, version 2.4.18-12.2 of i386 images, version 2.4.18-5woody7
of i386bf images and version 2.4.18-1woody4 of powerpc images.

Other architectures will probably mentioned in a separate advisory or
are not affected (m68k).

For the unstable distribution (sid) this problem is fixed in version
2.4.24-3 for source, i386 and alpha images and version 2.4.22-10 for
powerpc images.

This problem is also fixed in the upstream version of Linux 2.4.25 and
2.6.3.

We recommend that you upgrade your Linux kernel packages immediately.


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_2.4.18-14.2.dsc
      Size/MD5 checksum:      664 38e578dda3dd54a5daa6b8badcac1a58
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.2.diff.gz
      Size/MD5 checksum:    67490 e1ef6246f639481dfd8b3c5b15d8668e
    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_2.4.18-14.dsc
      Size/MD5 checksum:      876 7774c946590a5a80332ca920f67cc8ec
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-alpha_2.4.18-14.tar.gz
      Size/MD5 checksum:    24477 b9c0ba46774c2da3be69851110d6f2f9

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-i386_2.4.18-12.2.dsc
      Size/MD5 checksum:     1193 b44a4e8f803bb2214bd0c4c3e9f88d81
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-i386_2.4.18-12.2.tar.gz
      Size/MD5 checksum:    70044 f4caad005d02a1c7cadfa73bfc4952fb

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-i386bf_2.4.18-5woody7.dsc
      Size/MD5 checksum:      656 e091295663f495df0ea8273703decef0
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-i386bf_2.4.18-5woody7.tar.gz
      Size/MD5 checksum:    26249 f84d855e356c1f5290f6fe96d9e039c8

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody4.dsc
      Size/MD5 checksum:      713 7f68980058d55c40a037c6666354ffe9
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody4.tar.gz
      Size/MD5 checksum:    79541 bff712e95a6960659a0e96dab9732ed4

  Architecture independent components:

    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-doc-2.4.18_2.4.18-14.2_all.deb
      Size/MD5 checksum:  1719692 32cb6638a9be7e7f7332152c04854bba
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.2_all.deb
      Size/MD5 checksum: 24133918 306f15a8a6279221394b6a8ac2c5a69c

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody4_all.deb
      Size/MD5 checksum:    79274 8ea5d169fd45e464c1213e729e4e5368

  Alpha architecture:

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1_2.4.18-14_alpha.deb
      Size/MD5 checksum:  3363042 9ee4da919ccec99281efdaaae303af73
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-generic_2.4.18-14_alpha.deb
      Size/MD5 checksum:  3512422 47b306297211fd7079abb918bb10ef37
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-smp_2.4.18-14_alpha.deb
      Size/MD5 checksum:  3515048 d0153184a825640d1fe64b905ab98de4
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-generic_2.4.18-14_alpha.deb
      Size/MD5 checksum: 12425644 aa320665938f55d33bfc8a9593e4639f
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-smp_2.4.18-14_alpha.deb
      Size/MD5 checksum: 12800414 2901b9a0ff3cabfbb4249ee2cbb94b43

  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_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  3412982 cad64cfd789bfa49fe5463a3b4a8a5bd
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-386_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  3503440 02c707f32c72f98df9002c04006aae6b
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-586tsc_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  3504340 bd5e69e90ab3be3378f588abbfe23c79
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-686_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  3504232 6ab9026a1484be3aaf7fa08217ae9c5c
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-686-smp_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  3505300 2ffc58a24a13bf0991be5b982026b6c5
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-k6_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  3504034 a448bb692b10914a3a7f7f1d9b16be96
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-headers-2.4.18-1-k7_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  3504256 349318073fbd9b6f3eae2b7bc5d65b54
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-386_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  8797608 df96f2969970f149992e74cfd7838919
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-586tsc_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  8704208 b29d3a133a3d5485645a1428045481f2
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-686_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  8703628 fdf8ddc2c2fdc0c5ceffb9f34b8dc00f
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-686-smp_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  8959706 da0efa81b152f5ce0e949ba00a58b1f0
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-k6_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  8660826 78ee935b25e3cb8e1d6affc13e78aa35
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-image-2.4.18-1-k7_2.4.18-12.2_i386.deb
      Size/MD5 checksum:  8863038 8b0605e449390dfd819e5543c79fe0e3
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-386_2.4.18-12.2_i386.deb
      Size/MD5 checksum:   228532 83d533868f288d4bd7866cf4b3114321
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-586tsc_2.4.18-12.2_i386.deb
      Size/MD5 checksum:   228084 dca93798c731513d7f8908c591fc4992
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-686_2.4.18-12.2_i386.deb
      Size/MD5 checksum:   227546 99c579382f1c93af23cdedb9dfdce997
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-686-smp_2.4.18-12.2_i386.deb
      Size/MD5 checksum:   231188 cae74563956d0a8757994959b101e5c0
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-k6_2.4.18-12.2_i386.deb      Size/MD5 checksum:   227180 eb3383f20e4123b964a6143fae4be03b
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-i386/kernel-pcmcia-modules-2.4.18-1-k7_2.4.18-12.2_i386.deb      Size/MD5 checksum:   230440 e4875246851ee5dd470bf61af43e2ef6

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-headers-2.4.18-bf2.4_2.4.18-5woody7_i386.deb
      Size/MD5 checksum:  3410436 8238f8f8d03b19071ca774e611c83cd5
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-i386bf/kernel-image-2.4.18-bf2.4_2.4.18-5woody7_i386.deb
      Size/MD5 checksum:  6425110 e7e25ace06cd1edbb6967c3cae155e09

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-headers-2.4.18_2.4.18-1woody4_powerpc.deb
      Size/MD5 checksum:  3432656 4116a684a091bbc46a94fcafc03ba50a
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-newpmac_2.4.18-1woody4_powerpc.deb
      Size/MD5 checksum:  9452588 ca305391d3dfe3aa0ab140a047d67df2
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc_2.4.18-1woody4_powerpc.deb
      Size/MD5 checksum: 10101958 d427f943297e02355545d7fa1a2ab263
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc-smp_2.4.18-1woody4_powerpc.deb
      Size/MD5 checksum: 10345492 4d6e160cb19df083c4d238f8ff1e4913


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

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