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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA389] DSA-389-1 ipmasq

Vulnerability Assessment Details

[DSA389] DSA-389-1 ipmasq

Vulnerability Assessment Summary
DSA-389-1 ipmasq

Detailed Explanation for this Vulnerability Assessment

ipmasq is a package which simplifies configuration of Linux IP
masquerading, a form of network address translation which permits a
number of hosts to share a single public IP address. Due to use of
certain improper filtering rules, traffic arriving on the external
interface addressed for an internal host would be forwarded,
regardless of whether it was associated with an established
connection. This vulnerability could be exploited by a possible hacker
capable of forwarding IP traffic with an arbitrary destination address
to the external interface of a system with ipmasq installed.
For the current stable distribution (woody) this problem has been
fixed in version 3.5.10c.
For the unstable distribution (sid) this problem has been fixed in
version 3.5.12.
We recommend that you update your ipmasq package.

Solution : http://www.debian.org/security/2003/dsa-389
Network Security Threat Level: High

Networks Security ID: 8664

Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi

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