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Home » Security Advisories» Debian » New Linux 2.4.17 packages fix local root exploit (mips+mipsel)

New Linux 2.4.17 packages fix local root exploit (mips+mipsel)

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.

  • Vendor: Debian
  • Vendor ID: DSA 427-1
  • Date: January 19, 2004


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Debian Security Advisory DSA 427-1 [email protected]
http://www.debian.org/security/ Martin Schulze
January 19th, 2004 http://www.debian.org/security/faq
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Package : kernel-patch-2.4.17-mips
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 2.4.17-0.020226.2.woody3 the mips and mipsel architectures.

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-patch-2.4.17-mips/kernel-patch-2.4.17-mips_2.4.17-0.020226.2.woody3.dsc
Size/MD5 checksum: 786 0ed0c82eae3f9bdea8b5643080f11231
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-patch-2.4.17-mips_2.4.17-0.020226.2.woody3.tar.gz Size/MD5 checksum: 1136013 b115834700679688144a44ba55554389

Architecture independent components:

http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-patch-2.4.17-mips_2.4.17-0.020226.2.woody3_all.deb
Size/MD5 checksum: 1138232 067fa128b07595b293b69c77093c1ceb

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-headers-2.4.17_2.4.17-0.020226.2.woody3_mips.deb
Size/MD5 checksum: 3475612 d5ad56a3ed70e47a8da77a82e2736c82
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r4k-ip22_2.4.17-0.020226.2.woody3_mips.deb
Size/MD5 checksum: 2042408 9595b0545e466f8329b6c41df35bd817
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r5k-ip22_2.4.17-0.020226.2.woody3_mips.deb
Size/MD5 checksum: 2042232 70e9777c256a8cf0d0682bcc442467eb

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-headers-2.4.17_2.4.17-0.020226.2.woody3_mipsel.deb
Size/MD5 checksum: 3474458 5cf03484bfbd5f6c9ea7fa44c87b5e41
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r3k-kn02_2.4.17-0.020226.2.woody3_mipsel.deb
Size/MD5 checksum: 2196262 6456cdf36e393a624f6155fb229d0364
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/kernel-image-2.4.17-r4k-kn04_2.4.17-0.020226.2.woody3_mipsel.deb
Size/MD5 checksum: 2192656 96c8ca1f1a6b7e30ca7b114c075823c8
http://security.debian.org/pool/updates/main/k/kernel-patch-2.4.17-mips/mips-tools_2.4.17-0.020226.2.woody3_mipsel.deb
Size/MD5 checksum: 14928 30ee08d500482dbdea402ef23a52ca6c


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: [email protected]
Package info: `apt-cache show ' and http://packages.debian.org/

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