Vulnerability Assessment & Network Security Forums
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 ethereal package
Detailed Explanation for this Vulnerability Assessment
The remote host is missing the patch for the advisory FEDORA-2003-040 (ethereal).
This package lays base for libpcap, a packet capture and filtering
library, contains command-line utilities, contains tests and
documentation for ethereal. A graphical user interface is packaged
separately to GTK+ package.
Serious issues have been discovered in the following protocol dissectors:
* Selecting 'Match->Selected' or 'Prepare->Selected' for a
malformed SMB packet could cause a segmentation fault.
* It is possible for the Q.931 dissector to dereference a null
pointer when reading a malformed packet.
Both vulnerabilities will make the Ethereal application crash. The Q.931
vulnerability also affects Tethereal. It is not known if either
vulnerability can be used to make Ethereal or Tethereal run arbitrary code.
Upgrade to 0.10.0.
If you are running a version prior to 0.10.0 and you cannot upgrade, you
can disable the SMB and Q.931 protocol dissectors by selecting
Edit->Protocols... and deselecting them from the list.
Solution : http://www.fedoranews.org/updates/FEDORA-2003-040.shtml
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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