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[SECURITY] [DSA 417-1] New Linux 2.4.18 packages fix local root exploit (powerpc+alpha)

From: Martin Schulze (joeyinfodrom.org)
Date: Wed Jan 07 2004 - 06:26:50 CST


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Debian Security Advisory DSA 417-1 securitydebian.org
http://www.debian.org/security/ Martin Schulze
January 7th, 2004 http://www.debian.org/security/faq
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Package : kernel-patch-2.4.18-powerpc, kernel-image-2.4.18-1-alpha
Vulnerability : mising boundary check
Problem-Type : local
Debian-specific: no
CVE ID : CAN-2003-0985

Paul Starzetz discovered a flaw in bounds checking in mremap() in the
Linux kernel (present in version 2.4.x and 2.6.x) which may allow a
local attacker to gain root privileges. Version 2.2 is not affected
by this bug.

For the stable distribution (woody) this problem has been fixed in
version 2.4.18-1woody3 for the powerpc architecture.

For the unstable distribution (sid) this problem will be fixed soon
with newly uploaded packages.

We recommend that you upgrade your kernel packages. This problem has
been fixed in the upstream version 2.4.24 as well.

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-2.4.18/kernel-source-2.4.18_2.4.18-14.1.dsc
      Size/MD5 checksum: 664 fcb4f5a949cd17a2b528762db8c4a33e
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.1.diff.gz
      Size/MD5 checksum: 67239 0ff7d0053ffbf71a66290081300ff759
    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_2.4.18-12.dsc
      Size/MD5 checksum: 876 a419849800dab82bbccec929bab828be
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-alpha_2.4.18-12.tar.gz
      Size/MD5 checksum: 24327 1e03b0d75112d8f375edeab10765fc74

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody3.dsc
      Size/MD5 checksum: 713 17f72349c8729464cf38c1839134ff36
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody3.tar.gz
      Size/MD5 checksum: 79588 80e54f52ee1c0ead2a66bae306b958eb

  Architecture independent components:

    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-doc-2.4.18_2.4.18-14.1_all.deb
      Size/MD5 checksum: 1719652 cb20d668b1600ddcc336c48ccb02f9ca
    http://security.debian.org/pool/updates/main/k/kernel-source-2.4.18/kernel-source-2.4.18_2.4.18-14.1_all.deb
      Size/MD5 checksum: 24132116 8b06d229ce4861b1d4369bc5dec36588

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-patch-2.4.18-powerpc_2.4.18-1woody3_all.deb
      Size/MD5 checksum: 79254 eba10131349371c8042ea86d39243fd7

  Alpha architecture:

    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1_2.4.18-12_alpha.deb
      Size/MD5 checksum: 3362894 3d9145e6874b24e55225ba0a37fa1274
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-generic_2.4.18-12_alpha.deb
      Size/MD5 checksum: 3512274 433367fc7750fdf29f61d094cd98b6d0
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-headers-2.4.18-1-smp_2.4.18-12_alpha.deb
      Size/MD5 checksum: 3514902 622d609af4f67dd4d0ea807e6f3043f1
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-generic_2.4.18-11_alpha.deb
      Size/MD5 checksum: 12425696 27b4defd9326ed5bac3a765977437354
    http://security.debian.org/pool/updates/main/k/kernel-image-2.4.18-1-alpha/kernel-image-2.4.18-1-smp_2.4.18-11_alpha.deb
      Size/MD5 checksum: 12799424 966ecceeb16c5bf87cc31b9178d6add9

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-headers-2.4.18_2.4.18-1woody3_powerpc.deb
      Size/MD5 checksum: 3432832 c74804934655fd3d27f443870d9893e7
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-newpmac_2.4.18-1woody3_powerpc.deb
      Size/MD5 checksum: 9452710 cc8fe6e203147668d2ca134e11fa4709
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc_2.4.18-1woody3_powerpc.deb
      Size/MD5 checksum: 10100854 c42c8e8883490f9e1b1d68322ea0fd53
    http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.18-powerpc/kernel-image-2.4.18-powerpc-smp_2.4.18-1woody3_powerpc.deb
      Size/MD5 checksum: 10345270 de1248a91e076bc51402631b23cf8a5b

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

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