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Today's Topics:
1. dhcp TLSA2000015-1 (Joe Little)
--__--__--
Message: 1
Date: Fri, 28 Jul 2000 16:06:34 -0700 (PDT)
From: Joe Little <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: [TL-Security-Announce] dhcp TLSA2000015-1
Reply-To: [EMAIL PROTECTED]
___________________________________________________________________________
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 / [EMAIL PROTECTED]
___________________________________________________________________________
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.
2. Impact
A maliciously placed DHCP can answer to any local DHCP client, thus providing
an avenue to remotely exploit root privileges on the client.
3. Solution
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:
ftp://ftp.turbolinux.com/pub/updates/6.0/security/dhcp-2.0pl3-4.i386.rpm
ftp://ftp.turbolinux.com/pub/updates/6.0/security/dhcp-client-2.0pl3-4.i386.rpm
The source RPM can be downloaded here:
ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/dhcp-2.0pl3-4.i386.rpm
**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:
http://www.turbolinux.com/security/tlgpgkey.asc
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:
ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation
and Server security updates
ftp://ftp.turbolinux.com/pub/updates/4.0/security/ for TL4.0 Workstation
and Server security updates
Our webpage for security announcements:
http://www.turbolinux.com/security
If you want to report vulnerabilities, please contact:
[EMAIL PROTECTED]
___________________________________________________________________________
Subscribe to the TurboLinux Security Mailing lists:
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products.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security
TL-security-announce - An announce-only mailing list for security updates
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