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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 that address various security vulnerabilities are
now available for Red Hat Enterprise Linux.
The Linux kernel handles the basic functions of the operating system.
Security issues have been found that affect the versions of the Linux
kernel shipped with Red Hat Enterprise Linux:
CVE-2003-0462: Paul Starzetz discovered a file read race condition existing
in the execve() system call, which could cause a local crash.
CVE-2003-0501: The /proc filesystem in Linux permits local users to obtain
sensitive information by opening various entries in /proc/self before
executing a setuid program. This causes the program to fail to change the
ownership and permissions of already opened entries.
CVE-2003-0550: The STP protocol is known to have no security, which could
permit attackers to alter the bridge topology. STP is now turned off by
CVE-2003-0551: STP input processing was lax in its length checking, which
could lead to a denial of service (DoS).
CVE-2003-0552: Jerry Kreuscher discovered that the Forwarding table could
be spoofed by sending forged packets with bogus source addresses the same
as the local host.
CVE-2003-0619: An integer signedness error in the decode_fh function of
nfs3xdr.c permits remote attackers to cause a denial of service (kernel
panic) via a negative size value within XDR data of an NFSv3 procedure
CVE-2003-0699: The C-Media PCI sound driver in Linux kernel versions prior
to 2.4.21 accesses userspace without using the get_user function, which is
a potential security hole.
All users are advised to upgrade to these erratum packages, which contain
backported security patches correcting these vulnerabilities.
Solution : http://rhn.redhat.com/errata/RHSA-2003-239.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
|Netgear FR314 Cable/DSL Firewall Router w/ 4-Prt Switch Warranty
|LINKSYS BROADBAND FIREWALL ROUTER WITH 4 PORT SWITCH VPN ENDPOINT
|Fortinet FortiGate-200A Network Security Firewall Appliance
|WatchGuard XTM850 Network 850 800 Series Firewall Security Appliance SL8AE14
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