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Message-ID: <20030110062341.18084.qmail@updates.mandrakesoft.com>
From: security at linux-mandrake.com (Mandrake Linux Security Team)
Subject: MDKSA-2003:003 - Updated dhcpcd packages fix character expansion vulnerability
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________________________________________________________________________
Mandrake Linux Security Update Advisory
________________________________________________________________________
Package name: dhcpcd
Advisory ID: MDKSA-2003:003
Date: January 9th, 2003
Affected versions: 7.2, 8.0, 8.1, 8.2, 9.0,
Multi Network Firewall 8.2,
Single Network Firewall 7.2
________________________________________________________________________
Problem Description:
A vulnerability was discovered by Simon Kelley in the dhcpcd DHCP
client daemon. dhcpcd has the ability to execute an external script
named dhcpcd-<interface>.exe when an IP address is assigned to that
network interface. The script sources the file
/var/lib/dhcpcd/dhcpcd-<interface>.info which contains shell variables
and DHCP assignment information. The way quotes are handled inside
these assignments is flawed, and a malicious DHCP server can execute
arbitrary shell commands on the vulnerable DHCP client system. This
can also be exploited by an attacker able to spoof DHCP responses.
Mandrake Linux packages contain a sample /etc/dhcpc/dhcpcd.exe file
and encourages all users to upgrade immediately. Please note that
when you do upgrade, you will have to restart the network for the
changes to take proper effect by issuing "service network restart"
as root.
________________________________________________________________________
References:
http://www.phystech.com/download/dhcdcd_changelog.html
________________________________________________________________________
Updated Packages:
Linux-Mandrake 7.2:
19fd3bef4b6e19c38ccb57a28cacb51c 7.2/RPMS/dhcpcd-1.3.22pl4-1.1mdk.i586.rpm
455f213c4b06c727224880edfe8b495f 7.2/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Mandrake Linux 8.0:
af06f3b1b9084d9bbf64452a43943931 8.0/RPMS/dhcpcd-1.3.22pl4-1.1mdk.i586.rpm
455f213c4b06c727224880edfe8b495f 8.0/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Mandrake Linux 8.0/PPC:
e4ad6b50170cb50d3f1de86ac699d07b ppc/8.0/RPMS/dhcpcd-1.3.22pl4-1.1mdk.ppc.rpm
455f213c4b06c727224880edfe8b495f ppc/8.0/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Mandrake Linux 8.1:
247f8a59e8b5a524618e60c4989aec29 8.1/RPMS/dhcpcd-1.3.22pl4-1.1mdk.i586.rpm
455f213c4b06c727224880edfe8b495f 8.1/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Mandrake Linux 8.1/IA64:
4351a669bee76dc2d700833036d7f9d7 ia64/8.1/RPMS/dhcpcd-1.3.22pl4-1.1mdk.ia64.rpm
455f213c4b06c727224880edfe8b495f ia64/8.1/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Mandrake Linux 8.2:
e1487443e7412ab1756ed07f61ab318b 8.2/RPMS/dhcpcd-1.3.22pl4-1.1mdk.i586.rpm
455f213c4b06c727224880edfe8b495f 8.2/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Mandrake Linux 8.2/PPC:
9b02c61e7110675ab9d52416bf50b07f ppc/8.2/RPMS/dhcpcd-1.3.22pl4-1.1mdk.ppc.rpm
455f213c4b06c727224880edfe8b495f ppc/8.2/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Mandrake Linux 9.0:
f2b6212121ea3edbed6f6e62ebb0e20d 9.0/RPMS/dhcpcd-1.3.22pl4-1.1mdk.i586.rpm
455f213c4b06c727224880edfe8b495f 9.0/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Multi Network Firewall 8.2:
e1487443e7412ab1756ed07f61ab318b mnf8.2/RPMS/dhcpcd-1.3.22pl4-1.1mdk.i586.rpm
455f213c4b06c727224880edfe8b495f mnf8.2/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
Single Network Firewall 7.2:
19fd3bef4b6e19c38ccb57a28cacb51c snf7.2/RPMS/dhcpcd-1.3.22pl4-1.1mdk.i586.rpm
455f213c4b06c727224880edfe8b495f snf7.2/SRPMS/dhcpcd-1.3.22pl4-1.1mdk.src.rpm
________________________________________________________________________
Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
________________________________________________________________________
To upgrade automatically, use MandrakeUpdate. The verification of md5
checksums and GPG signatures is performed automatically for you.
If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm". A list of
FTP mirrors can be obtained from:
http://www.mandrakesecure.net/en/ftp.php
Please verify the update prior to upgrading to ensure the integrity of
the downloaded package. You can do this with the command:
rpm --checksig <filename>
All packages are signed by MandrakeSoft for security. You can obtain
the GPG public key of the Mandrake Linux Security Team from:
https://www.mandrakesecure.net/RPM-GPG-KEYS
Please be aware that sometimes it takes the mirrors a few hours to
update.
You can view other update advisories for Mandrake Linux at:
http://www.mandrakesecure.net/en/advisories/
MandrakeSoft has several security-related mailing list services that
anyone can subscribe to. Information on these lists can be obtained by
visiting:
http://www.mandrakesecure.net/en/mlist.php
If you want to report vulnerabilities, please contact
security_linux-mandrake.com
Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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