Mandrake Linux Security Advisory : kernel (MDKSA-2003:066-2)

This script is Copyright (C) 2004-2013 Tenable Network Security, Inc.


Synopsis :

The remote Mandrake Linux host is missing one or more security
updates.

Description :

Multiple vulnerabilities were discovered and fixed in the Linux
kernel.

- CVE-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.

- CVE-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.

- CVE-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.

- CVE-2003-0247: A vulnerability in the TTY layer of the
2.4 kernel allows attackers to cause a kernel oops
resulting in a DoS.

- CVE-2003-0248: The mxcsr code in the 2.4 kernel allows
attackers to modify CPU state registers via a malformed
address.

- CVE-2003-0462: A file read race existed in the execve()
system call.

As well, a number of bug fixes were made in the 9.1 kernel including :

- Support for more machines that did not work with APIC

- Audigy2 support

- New/updated modules: prims25, adiusbadsl, thinkpad,
ieee1394, orinoco, via-rhine,

- Fixed SiS IOAPIC

- IRQ balancing has been fixed for SMP

- Updates to ext3

- The previous ptrace fix has been redone to work better

- Bugs with compiling kernels using xconfig have been
fixed

- Problems with ipsec have been corrected

- XFS ACLs are now present

- gdb not working on XFS root filesystems has been fixed

MandrakeSoft encourages all users to upgrade to these new kernels.
Updated kernels will be available shortly for other supported
platforms and architectures.

For full instructions on how to properly upgrade your kernel, please
review http://www.mandrakesecure.net/en/docs/magic.php.

Update :

The kernels provided in MDKSA-2003:066-1 (2.4.21-0.24mdk) had a
problem where all files created on any filesystem other than XFS, and
using any kernel other than kernel-secure, would be created with mode
0666, or world writeable. The 0.24mdk kernels have been removed from
the mirrors and users are encouraged to upgrade and remove those
kernels from their systems to prevent accidentally booting into them.

That issue has been addressed and fixed with these new kernels.

See also :

http://marc.info/?l=bugtraq&m=105664924024009&w=2

Solution :

Update the affected packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Mandriva Local Security Checks

Nessus Plugin ID: 14049 (mandrake_MDKSA-2003-066.nasl)

Bugtraq ID:

CVE ID: CVE-2003-0001
CVE-2003-0244
CVE-2003-0246
CVE-2003-0247
CVE-2003-0248
CVE-2003-0462

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