TurboLinux Security Announcement: Package: dhcp-2.0 and earlierJul 28, 2000, 23:59 (0 Talkback[s])
(Other stories by Joe Little)
Date: Fri, 28 Jul 2000 16:06:34 -0700 (PDT)
TurboLinux Security Announcement Package: dhcp-2.0 and earlier Date: Wednesday July 19 17:00 PDT 2000 Affected TurboLinux versions: 6.0.5 and earlier Vulnerability Type: remote root exploit TurboLinux Advisory ID#: TLSA2000015-1 Credits: OpenBSD team / mellon@NOMINUM.COM
A security hole was discovered in the package mentioned above. Please update the package in your installation as soon as possible or disable the service.
1. Problem Summary
Current and previous version of the DHCP client is vulnerable to malicious DHCP servers. The client can execute arbitrary commands given to it in responses from a DHCP server.
A maliciously placed DHCP can answer to any local DHCP client, thus providing an avenue to remotely exploit root privileges on the client.
Please upgrade both the client and server packages to match the new revision
Update the packages from our ftp server by running the following command:
rpm -Fv ftp_path_to_filename
Where ftp_path_to_filename is the following:
The source RPM can be downloaded here:
**Note: You must rebuild and install the RPM if you choose to download and install the SRPM. Simply installing the SRPM alone WILL NOT CLOSE THE SECURITY HOLE.
Please verify the MD5 checksum of the update before you install:
MD5 sum Package Name
d6b80f8168a2ea8ec13f25a28d14943e dhcp-2.0pl3-4.i386.rpm 66085982778f6820a118abff4e336b2e dhcp-client-2.0pl3-4.i386.rpm 044a8281b6ebf8755aebf38e4a077087 dhcp-2.0pl3-4.src.rpm
These packages are GPG signed by Turbolinux for security. Our key is available here:
To verify a package, use the following command:
rpm --checksig name_of_rpm
To examine only the md5sum, use the following command:
rpm --checksig --nogpg name_of_rpm
**Note: Checking GPG keys requires RPM 3.0 or higher.
You can find more updates on our ftp server:
for TL6.0 Workstation
Our webpage for security announcements:
If you want to report vulnerabilities, please contact:
Subscribe to the TurboLinux Security Mailing lists:
TL-security - A moderated list for discussing security issues in
TurboLinux products. Subscribe at
TL-security-announce - An announce-only mailing list for
security updates and alerts.
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