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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 packages
Detailed Explanation for this Vulnerability Assessment
Updated kernel packages for Red Hat Enterprise Linux are now available
which address several security vulnerabilities.
The Linux kernel handles the basic functions of the operating system.
Several security issues have been found that affect the Linux kernel:
Al Viro found a security issue in the tty layer whereby any user could
cause a kernel oops. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2003-0247 to this issue.
Andrea Arcangeli found an issue in the low-level mxcsr code in which a
malformed address would leave garbage in cpu state registers. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2003-0248 to this issue.
The TCP/IP fragment reassembly handling permits remote attackers to cause a
denial of service (CPU consumption) via packets that cause a large number
of hash table collisions, a vulnerability similar to CVE-2003-0244. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CVE-2003-0364 to this issue.
These kernels also contain updated fixes for the ioperm security issue, as
well as fixes for a number of bugs.
It is recommended that users upgrade to these erratum kernels, which
contain patches to correct these vulnerabilities.
Solution : http://rhn.redhat.com/errata/RHSA-2003-195.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
|Dell PowerConnect 8024F 24-Ports 10 Gbe SFP+ Ethernet Switch
|Netgear ProSafe Plus Switch 5 Port Gigabit with POE - GS105PE
|NETGEAR GS110TP -200NAS Prosafe 8-Port Gigabit PoE Smart Switch with 2 Gig SFP
|3Com OfficeConnect HP V1405C-8G 8-Port Gigabit Switch 10/100/1000Base-T (JD841A)
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