Date: Wed, 8 Mar 2000 18:58:20 -0800
From: Jeremiah Johnson jjohnson@turbolinux.com
To: tl-security-announce@turbolinux.com
Subject: [TL-Security-Announce] man-1.5g-5 and earlier
TLSA2000004-1
TurboLinux Security Announcement
Package: man-1.5g-5 and earlier
Date: Wed Mar 8 14:54:54 PST 2000
Affected TurboLinux versions: TurboLinux 6.0.2 and earlier
Vulnerability Type: possible local root compromise
TurboLinux Advisory ID#: TLSA2000004-1
Credits: This vulnerability was posted to the Bugtraq mailinglist
on February 26, 2000 by Michal Zalewski lcamtuf@DIONE.IDS.PL.
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
The program ‘ man ‘ is setguid man. Unfortuanatly man uses
system() for most calls, while most parameters are user dependent.
Using enviromental variables you can buffer overflow man, and gain
man privileges, or possibly root.
2. Impact
Problems could lead to a malicious local user gaining privileges
of the user man or root.
3. Solution
Update the package from our ftp server by running the following
command:
rpm -Uv ftp_path_to_filename
Where ftp_path_to_filename is the following:
ftp://ftp.turbolinux.com/pub/updates/6.0/security/man-1.5h1-1.i386.rpm
The source rpm can be downloaded here:
ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/man-1.5h1-1.src.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
91f4921306e75bafd2d45b8f385eed74 man-1.5h1-1.i386.rpm 347857c4239ceca04889fbac69b41794 man-1.5h1-1.src.rpm
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: security-rt@turbolinux.com
Subscribe to the TurboLinux Security Mailing lists:
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