arpwatch, libpcap, tcpdump security update

CentOS Errata and Security Advisory CESA-2005:421

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 an attacker to inject a
carefully crafted packet onto the network, crashing a running tcpdump
session. The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the names CAN-2005-1278, CAN-2005-1279, and CAN-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.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2005-May/073805.html
https://lists.centos.org/pipermail/centos-announce/2005-May/073806.html

Affected packages:
arpwatch
libpcap
tcpdump

Upstream details at:
https://access.redhat.com/errata/RHSA-2005:421