RHEL 2.1 : tcpdump (RHSA-2003:085)

Medium Nessus Plugin ID 12375


The remote Red Hat host is missing one or more security updates.


Updated tcpdump packages are available to fix a denial of service vulnerability in tcpdump.

[Updated 12 March 2003] Added packages for Red Hat Enterprise Linux ES and Red Hat Enterprise Linux WS

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

The ISAKMP parser in tcpdump 3.6 through 3.7.1 allows remote attackers to cause a denial of service (CPU consumption) via a certain malformed ISAKMP packet to UDP port 500, which causes tcpdump to enter an infinite loop.

Users of tcpdump are advised to upgrade to these errata packages which contain a patch to correct this issue.


Update the affected arpwatch, libpcap and / or tcpdump packages.

See Also




Plugin Details

Severity: Medium

ID: 12375

File Name: redhat-RHSA-2003-085.nasl

Version: $Revision: 1.18 $

Type: local

Agent: unix

Published: 2004/07/06

Modified: 2016/12/28

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:arpwatch, p-cpe:/a:redhat:enterprise_linux:libpcap, p-cpe:/a:redhat:enterprise_linux:tcpdump, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 2003/03/19

Reference Information

CVE: CVE-2003-0108

RHSA: 2003:085