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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] dhcp (SSA:2009-195-01)
Date: Tue, 14 Jul 2009 17:34:59 -0700 (PDT)
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[slackware-security]  dhcp (SSA:2009-195-01)

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:

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0692


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
  option.
  For more information, see:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0692
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

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

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

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 8.1:
ftp://ftp.slackware.com/pub/slackware/slackware-8.1/patches/packages/dhcp-3.1.2p1-i386-1_slack8.1.tgz

Updated package for Slackware 9.0:
ftp://ftp.slackware.com/pub/slackware/slackware-9.0/patches/packages/dhcp-3.1.2p1-i386-1_slack9.0.tgz

Updated package for Slackware 9.1:
ftp://ftp.slackware.com/pub/slackware/slackware-9.1/patches/packages/dhcp-3.1.2p1-i486-1_slack9.1.tgz

Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/dhcp-3.1.2p1-i486-1_slack10.0.tgz

Updated package for Slackware 10.1:
ftp://ftp.slackware.com/pub/slackware/slackware-10.1/patches/packages/dhcp-3.1.2p1-i486-1_slack10.1.tgz

Updated package for Slackware 10.2:
ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patches/packages/dhcp-3.1.2p1-i486-1_slack10.2.tgz

Updated package for Slackware 11.0:
ftp://ftp.slackware.com/pub/slackware/slackware-11.0/patches/packages/dhcp-3.1.2p1-i486-1_slack11.0.tgz

Updated package for Slackware 12.0:
ftp://ftp.slackware.com/pub/slackware/slackware-12.0/patches/packages/dhcp-3.1.2p1-i486-1_slack12.0.tgz

Updated package for Slackware 12.1:
ftp://ftp.slackware.com/pub/slackware/slackware-12.1/patches/packages/dhcp-3.1.2p1-i486-1_slack12.1.tgz

Updated package for Slackware 12.2:
ftp://ftp.slackware.com/pub/slackware/slackware-12.2/patches/packages/dhcp-3.1.2p1-i486-1_slack12.2.tgz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/dhcp-3.1.2p1-i486-1.txz

Updated package for Slackware64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/dhcp-3.1.2p1-x86_64-1.txz


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


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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