Date: Wed, 23 May 2001 22:09:54 -0700 (PDT)
From: TurboLinux Security Team <security@www1.turbolinux.com>
Subject: [TL-Security-Announce] TLSA2001022 vixie-cron-3.0.1-47
___________________________________________________________________________________________
Turbolinux Security Announcement
Package: vixie-cron
Vulnerable Packages: All Turbolinux versions previous to 3.0.1-47
Date: 05/21/2001 5:00 PDT
Affected Turbolinux platforms: TL Server 6.5,
TL 6.1 Workstation,
All Turbolinux versions
6.0.5 and earlier
Turbolinux Advisory ID#: TLSA2001022
Credits: Vulnerability discovered by Sebastian Krahmer
References: http://www.securityfocus.com/bid/2687
___________________________________________________________________________________________
A security hole has been discovered in the package vixie-cron. Please
update the packages in your installation as soon as possible.
___________________________________________________________________________________________
1. Problem Summary
When a parsing error occurs after a modification operation, crontab will fail to drop
privileges correctly for subsequent modification operations.
2. Impact
It is possible for a local user to gain root privileges.
3. Solution
Update the packages from our ftp server by running the following
command:
rpm -Uvh ftp_path_to_filename
Where ftp_path_to_filename is the following:
ftp://ftp.turbolinux.com/pub/updates/security/vixie-cron-3.0.1-47.i386.rpm
The source RPM can be downloaded here:
ftp://ftp.turbolinux.com/pub/updates/SRPMS/vixie-cron-3.0.1-47.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 checksums of the updates before you install:
MD5 sum Package Name
- ---------------------------------------------------------------------------------------------
e278af00ebb3f8d71ecf235d15428cb6 vixie-cron-3.0.1-47.i386.rpm/
f250f52c96ac6c955d34829da6e0e3eb vixie-cron-3.0.1-47.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:
md5sum 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/security/
for TL6.x Workstation and Server security updates
Our webpage for security announcements:
http://www.turbolinux.com/security
If you want to report vulnerabilities, please contact:
security@turbolinux.com
______________________________________________________________________________________________
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