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Mandrake Linux Advisory: kernel

Jul 16, 2003, 14:29 (0 Talkback[s])

Mandrake Linux Security Update Advisory

Package name: kernel
Advisory ID: MDKSA-2003:074
Date: July 15th, 2003
Affected versions: 8.2, 9.0, Corporate Server 2.1, Multi Network Firewall 8.2

Problem Description:

Multiple vulnerabilities were discovered and fixed in the Linux kernel.

  • CAN-2003-0001: Multiple ethernet network card drivers do not pad frames with null bytes which allows remote attackers to obtain information from previous packets or kernel memory by using special malformed packets.
  • CAN-2003-0244: The route cache implementation in the 2.4 kernel and the Netfilter IP conntrack module allows remote attackers to cause a Denial of Service (DoS) via CPU consumption due to packets with forged source addresses that cause a large number of hash table collisions related to the PREROUTING chain.
  • CAN-2003-0246: The ioperm implementation in 2.4.20 and earlier kernels does not properly restrict privileges, which allows local users to gain read or write access to certain I/O ports.
  • CAN-2003-0247: A vulnerability in the TTY layer of the 2.4 kernel allows attackers to cause a kernel oops resulting in a DoS.
  • CAN-2003-0248: The mxcsr code in the 2.4 kernel allows attackers to modify CPU state registers via a malformed address.
  • CAN-2003-0462: A file read race existed in the execve() system call.

Kernels for 9.1/x86 are also available (see MDKSA-2003:066).

MandrakeSoft encourages all users to upgrade to these new kernels.

For full instructions on how to properly upgrade your kernel, please review


Updated Packages:

Corporate Server 2.1:
7d1353ce3e9fb208432efbdd2b88ce1d corporate/2.1/RPMS/kernel-
0326b72151288d0019f8931c00ee0e09 corporate/2.1/RPMS/kernel-BOOT-
32b1a09f83f47f5ff1a5d57a80ccb20a corporate/2.1/RPMS/kernel-enterprise-
980ba2d5c0a1d8a9912c2a69acbbfe78 corporate/2.1/RPMS/kernel-secure-
958b18995fe86327c810f61f4f0dde19 corporate/2.1/RPMS/kernel-smp-
8820530236f374ef7785894da1d9d335 corporate/2.1/RPMS/kernel-source-2.4.19-35mdk.i586.rpm
32603ada685f5e679c4be90942bb3a82 corporate/2.1/SRPMS/kernel-

Mandrake Linux 8.2:
2619584b889187747e02fea73a4f1a8e 8.2/RPMS/kernel-
3eaea1e08d39961b53d5738b29aea33e 8.2/RPMS/kernel-BOOT-
b4692c3e92c7e6a43f96bd1f6d7f9358 8.2/RPMS/kernel-doc-2.4.19-35mdk.i586.rpm
e84542a0bdb5b41cec474bf4e4e3c604 8.2/RPMS/kernel-enterprise-
491ae5f0690d23df6219cca1ed1eba18 8.2/RPMS/kernel-secure-
c776ded96b8a2c348243f2597dd86502 8.2/RPMS/kernel-smp-
cef13c1241944b7bd2d7504cb7352305 8.2/RPMS/kernel-source-2.4.19-35mdk.i586.rpm
32603ada685f5e679c4be90942bb3a82 8.2/SRPMS/kernel-

Mandrake Linux 8.2/PPC:
be46c251cf9c926a343d4669a841ea2c ppc/8.2/RPMS/kernel-
b89668f6f92f1066f5cbdd04780fa7b5 ppc/8.2/RPMS/kernel-doc-2.4.19-35mdk.ppc.rpm
da58d7320c3a22304e00a1a2498d9062 ppc/8.2/RPMS/kernel-enterprise-
128aff5750789a51db0985ee17ad466b ppc/8.2/RPMS/kernel-smp-
82eab7a11ded653b85f741f1d5892338 ppc/8.2/RPMS/kernel-source-2.4.19-35mdk.ppc.rpm
32603ada685f5e679c4be90942bb3a82 ppc/8.2/SRPMS/kernel-

Mandrake Linux 9.0:
7d1353ce3e9fb208432efbdd2b88ce1d 9.0/RPMS/kernel-
0326b72151288d0019f8931c00ee0e09 9.0/RPMS/kernel-BOOT-
efb37c9fe34a782d4bc9425e0ac19dda 9.0/RPMS/kernel-doc-2.4.19-35mdk.i586.rpm
32b1a09f83f47f5ff1a5d57a80ccb20a 9.0/RPMS/kernel-enterprise-
980ba2d5c0a1d8a9912c2a69acbbfe78 9.0/RPMS/kernel-secure-
958b18995fe86327c810f61f4f0dde19 9.0/RPMS/kernel-smp-
8820530236f374ef7785894da1d9d335 9.0/RPMS/kernel-source-2.4.19-35mdk.i586.rpm
32603ada685f5e679c4be90942bb3a82 9.0/SRPMS/kernel-

Multi Network Firewall 8.2:
491ae5f0690d23df6219cca1ed1eba18 mnf8.2/RPMS/kernel-secure-
32603ada685f5e679c4be90942bb3a82 mnf8.2/SRPMS/kernel-

Bug IDs fixed (see for more information):

To upgrade automatically, use MandrakeUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you.

A list of FTP mirrors can be obtained from:

All packages are signed by MandrakeSoft for security. You can obtain the GPG public key of the Mandrake Linux Security Team by executing:

gpg --recv-keys --keyserver 0x22458A98

Please be aware that sometimes it takes the mirrors a few hours to update.

You can view other update advisories for Mandrake Linux at:

MandrakeSoft has several security-related mailing list services that anyone can subscribe to. Information on these lists can be obtained by visiting:

If you want to report vulnerabilities, please contact

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team