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Sicherheit: Ausführen von Programmen mit Root-Rechten in cron
Aktuelle Meldungen Distributionen
Name: Ausführen von Programmen mit Root-Rechten in cron
ID: TLSA2001022
Distribution: TurboLinux
Plattformen: Keine Angabe
Datum: Do, 24. Mai 2001, 13:00
Referenzen: Keine Angabe
Applikationen: vixie-cron

Originalnachricht

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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

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_

A security hole has been discovered in the package vixie-cron. Please
update the packages in your installation as soon as possible.
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_

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.

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_

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
_______________________________________________________________________________________________
_

Subscribe to the Turbolinux Security Mailing lists:

TL-security - A moderated list for discussing security issues
Turbolinux products.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security

TL-security-announce - An announce-only mailing list for security
updates and alerts.

Subscribe at:

http://www.turbolinux.com/mailman/listinfo/tl-security-announce

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