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slackwareSlackware Linux ProjectSSA-2009-195-01
HistoryJul 14, 2009 - 5:34 p.m.


Slackware Linux Project

0.076 Low




New dhcp packages are available for Slackware 8.1, 9.0, 9.1, 10.0, 10.1, 10.2,
11.0, 12.0, 12.1, 12.2, and -current to fix a security issue with dhclient.

Note that dhclient is not the default DHCP client in Slackware’s networking
scripts, dhcpcd is. However, if you use dhclient on a network where someone
could deploy a hostile DHCP server, you should upgrade to the new package.

More details about this issue may be found in the Common
Vulnerabilities and Exposures (CVE) database:

Here are the details from the Slackware 12.2 ChangeLog:

patches/packages/dhcp-3.1.2p1-i486-1_slack12.2.tgz: Upgraded.
A stack overflow vulnerability was fixed in dhclient that could allow
remote attackers to execute arbitrary commands as root on the system,
or simply terminate the client, by providing an over-long subnet-mask
For more information, see:
(* Security fix *)

Where to find the new packages:

HINT: Getting slow download speeds from
Give a try. This is another primary FTP site
for Slackware that can be considerably faster than downloading
directly from

Thanks to the friendly folks at the OSU Open Source Lab
( for donating additional FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on for
additional mirror sites near you.

Updated package for Slackware 8.1:

Updated package for Slackware 9.0:

Updated package for Slackware 9.1:

Updated package for Slackware 10.0:

Updated package for Slackware 10.1:

Updated package for Slackware 10.2:

Updated package for Slackware 11.0:

Updated package for Slackware 12.0:

Updated package for Slackware 12.1:

Updated package for Slackware 12.2:

Updated package for Slackware -current:

Updated package for Slackware64 -current:

MD5 signatures:

Slackware 8.1 package:
01143b6e39f09c606f962c79b6437598 dhcp-3.1.2p1-i386-1_slack8.1.tgz

Slackware 9.0 package:
93492796e78bc44e8ad92185ea65083b dhcp-3.1.2p1-i386-1_slack9.0.tgz

Slackware 9.1 package:
88c3c2242439b838f99c6e518db4a28e dhcp-3.1.2p1-i486-1_slack9.1.tgz

Slackware 10.0 package:
e0ebe048f8e655cd9cd0e2767b4da486 dhcp-3.1.2p1-i486-1_slack10.0.tgz

Slackware 10.1 package:
ac2ada2ca250bbd21872dd58b4775c77 dhcp-3.1.2p1-i486-1_slack10.1.tgz

Slackware 10.2 package:
33a95808d59b77e9fb83635478d5ea2f dhcp-3.1.2p1-i486-1_slack10.2.tgz

Slackware 11.0 package:
e02bb8e11adeecc44b0f5d38cb06bdf3 dhcp-3.1.2p1-i486-1_slack11.0.tgz

Slackware 12.0 package:
309a1a3140899da2d9bf8405cee04a30 dhcp-3.1.2p1-i486-1_slack12.0.tgz

Slackware 12.1 package:
99be31135ef2b815ae4ac7eb2705abcf dhcp-3.1.2p1-i486-1_slack12.1.tgz

Slackware 12.2 package:
967911d55d67c85ae4d61828c3e5859a dhcp-3.1.2p1-i486-1_slack12.2.tgz

Slackware -current package:
5b328e631b47e61433d347b1836e07d6 dhcp-3.1.2p1-i486-1.txz

Slackware64 -current package:
b4e120017ff3a0b4a21e7fd832c6216c dhcp-3.1.2p1-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg dhcp-3.1.2p1-i486-1_slack12.2.tgz