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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the kernel package
Detailed Explanation for this Vulnerability Assessment
The remote host is missing the patch for the advisory MDKSA-2003:074 (kernel).
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 permits 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 permits 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
* CVE-2003-0246: The ioperm implementation in 2.4.20 and earlier kernels does
not properly restrict rights, which permits 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 permits
attackers to cause a kernel oops resulting in a DoS.
* CVE-2003-0248: The mxcsr code in the 2.4 kernel permits attackers to modify CPU
state registers via a malformed address.
* CVE-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
Solution : http://wwwnew.mandriva.com/security/advisories?name=MDKSA-2003:074
Network Security Threat Level: High
Networks Security ID: 7791, 8042
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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