Debian Security Advisory DSA 389-1 [email protected]
https://www.debian.org/security/ Matt Zimmerman
September 20th, 2003 https://www.debian.org/security/faq
Vulnerability : insecure packet filtering rules
Problem-Type : remote
CVE Ids : CAN-2003-0785
ipmasq is a package which simplifies configuration of Linux IP
masquerading, a form of network address translation which allows 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 an attacker
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
We recommend that you update your ipmasq package.
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
will update the internal database
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 3.0 alias woody
Size/MD5 checksum: 502 f5f259d819d47b687c3da42d931b1404
Size/MD5 checksum: 30656 e9a9a1f86bd88dcceaeba900698165bb
Architecture independent components:
Size/MD5 checksum: 47748 199a747d5c48c145cf34772f26cbba4d
These files will probably be moved into the stable distribution on
its next revision.
For apt-get: deb https://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: [email protected]
Package info: `apt-cache show ' and https://packages.debian.org/
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