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August 1999
- 1 participants
- 1 discussions
-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: cron-3.0.1-75 (Vixie Cron) and previous versions
Date: Fri Aug 27 17:56:48 CEST 1999
Affected: maybe all Unix operatingsystems using crond
______________________________________________________________________________
Some security holes were discovered in the package mentioned above.
Please update as soon as possible or disable the service if you are using
this software on your SuSE Linux installation(s).
Other Linux distributions or operating systems might be affected as
well, please contact your vendor for information about this issue.
Please note, that that we provide this information on as "as-is" basis only.
There is no warranty whatsoever and no liability for any direct, indirect or
incidental damage arising from this information or the installation of
the update package.
_____________________________________________________________________________
1. Problem Description
Three security threats were found in the vixie crond, which is shipped
with SuSE Linux.
1) no boundchecking on a local buffer, while copying data from MAILTO
2) passing invalid options to sendmail
3) it doesn't drop root privileges while sending acknowledge mail
to a user
2. Impact
1) local root compromise by putting arbitrary code on the stack
2/3) triggering a local denial-of-service attack by starting alot
of sendmail daemons
execute sendmail with options that only root could apply
(like '-C'), which also leads to local root compromise
3. Solution
Updated the crond package from our FTP server.
______________________________________________________________________________
Here are the md5 checksums of the upgrade packages, please verify these
before installing the new packages:
bfc9ab01fdfd36eebb3cc398bbb34c37 cron-3.0.1-84.i386.rpm (6.2)
8998dbecf020d8a6f7ba1a2885f986da cron-3.0.1-82.i386.rpm (6.1)
______________________________________________________________________________
You will find the update on our ftp-Server:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/a1/cron-3.0.1-84.i386.rpm
ftp://ftp.suse.com/pub/suse/i386/update/6.1/a1/cron-3.0.1-82.i386.rpm
Webpage for patches:
http://www.suse.de/patches/index.html
or try the following web pages for a list of mirrors:
http://www.suse.de/ftp.html
http://www.suse.com/ftp_new.html
______________________________________________________________________________
SuSE has got two free security mailing list services to which any
interested party may subscribe:
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To subscribe, send an email to majordomo(a)suse.com with the text
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or
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______________________________________________________________________________
If you want to report *NEW* security bugs in the SuSE Linux Distribution
please send an email to security(a)suse.de or call our support line.
You may use pgp with the public key below to ensure confidentiality.
______________________________________________________________________________
This information is provided freely to everyone interested and may
be redistributed provided that it is not altered in any way.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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