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Home >> Browse Vulnerability Assessment Database >> Red Hat Local Security Checks >> RHSA-2005-421: libpcap

Vulnerability Assessment Details

RHSA-2005-421: libpcap

Vulnerability Assessment Summary
Check for the version of the libpcap packages

Detailed Explanation for this Vulnerability Assessment

Updated tcpdump packages that fix several security issues are now

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

These updated packages also add support for output files larger than 2 GB,
add support for some new VLAN IDs, and fix message parsing on 64bit

Tcpdump is a command-line tool for monitoring network traffic.

Several denial of service bugs were found in the way tcpdump processes
certain network packets. It is possible for a possible hacker to inject a
carefully crafted packet onto the network, crashing a running tcpdump
session. The Common Vulnerabilities and Exposures project (
has assigned the names CVE-2005-1278, CVE-2005-1279, and CVE-2005-1280 to
these issues.

Additionally, the tcpdump utility can now write a file larger than 2 GB,
parse some new VLAN IDs, and parse messages on 64bit architectures.

Users of tcpdump are advised to upgrade to these erratum packages, which
contain backported security patches and are not vulnerable to these issues.

Solution :
Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2005 Tenable Network Security

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