On Tue, 15 May 2001, Roman Drahtmueller wrote: Ok, hab grad gesehen, dann mach ich doch keins mehr :) versteh ich nicht, wieso das nochmal neu gebaut wurde. S.

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As a result of a package rebuild, the package for the SuSE-7.1 Intel i386 distribution is not available under the URL as listed below. The listed package was named "cron-3.0.1-297.i386.rpm". This package also fixed the mentioned problems with the package. We are resending this announcement with the correct pathnames and md5sums.

Thank you for your understanding, Roman Drahtmüller.

______________________________________________________________________________

SuSE Security Announcement

Package: cron-3.0.1-296 Announcement-ID: SuSE-SA:2001:17 (resent) Date: Tuesday, May 15th, 2001 15:30:00 CEST Affected SuSE versions: 7.1 Vulnerability Type: local privilege escalation Severity (1-10): 7 SuSE default package: yes Other affected systems: All UN*X systems using this package

Content of this advisory: 1) security vulnerability resolved: crontab problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds 3) standard appendix (further information)

______________________________________________________________________________

1) problem description, brief discussion, solution, upgrade information

The crontab program is running setuser-id root and invokes the editor specified in the EDITOR environment variable, usually vi. If crontab discovers that the format of the edited file is incorrect, it executes the editor again but fails to drop its root privileges before. Therefore it is possible to execute arbitrary commands as root. It has been fixed by properly dropping the privileges before executing the editor. This bug was found by Sebastian Krahmer.

A possible temporary workaround is to remove the suid bit of the /usr/bin/crontab program: chmod -s /usr/bin/crontab. If you change the mode, you should also do so in the files /etc/permissions*. A permanent solution for the problem is to update the cron package from our ftp server.

Download the update package from locations desribed below and install the package with the command `rpm -Uhv file.rpm'. The md5sum for each file is in the line below. You can verify the integrity of the rpm files using the command `rpm --checksig file.rpm', independently from the md5 signatures below.

i386 Intel Platform:

SuSE-7.1 ftp://ftp.suse.com/pub/suse/i386/update/7.1/a1/cron-3.0.1-335.i386.rpm 606d2c5d67a851ce4e1907146a184cd4 source rpm: ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/cron-3.0.1-335.src.rpm 57805850a0f4fcf8afa99326d3071fd0

Sparc Platform:

SuSE-7.1 ftp://ftp.suse.com/pub/suse/sparc/update/7.1/a1/cron-3.0.1-316.sparc.rpm 4db292d0276badc0ae58fd6aeaab64c0 source rpm: ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/cron-3.0.1-316.src.rpm 16facdbbce03d43fa05d540b810d8636

AXP Alpha Platform:

The SuSE-7.1 AXP-Alpha Edition does not suffer from this problem.

PPC Power PC Platform:

SuSE-7.1 ftp://ftp.suse.com/pub/suse/ppc/update/7.1/a1/cron-3.0.1-295.ppc.rpm 589e8575bbbee29a07319f5c5ada9bcc source rpm: ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/cron-3.0.1-295.src.rpm ff747e2aee85a53e3a30827b33383a7d

______________________________________________________________________________

2) Pending vulnerabilities in SuSE Distributions and Workarounds:

- The man program running setuser-id 'man' suffers from format string and bufferoverflow bugs. Updates are available on the ftp server at the usual location, the announcement will follow shortly.

______________________________________________________________________________

3) standard appendix:

SuSE runs two security mailing lists to which any interested party may subscribe:

suse-security@suse.com - general/linux/SuSE security discussion. All SuSE security announcements are sent to this list. To subscribe, send an email to .

suse-security-announce@suse.com - SuSE's announce-only mailing list. Only SuSE's security annoucements are sent to this list. To subscribe, send an email to .

For general information or the frequently asked questions (faq) send mail to: or respectively.

=============================================== SuSE's security contact is . ===============================================

Regards, Sebastian Krahmer

______________________________________________________________________________

The information in this advisory may be distributed or reproduced, provided that the advisory is not modified in any way. SuSE GmbH makes no warranties of any kind whatsoever with respect to the information contained in this security advisory.

Type Bits/KeyID Date User ID pub 2048/3D25D3D9 1999/03/06 SuSE Security Team

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