Linux-Mandrake Security Update Advisory: ypbind and ypserv updates

Date: Mon, 23 Oct 2000 19:17:15 -0600
From: Linux Mandrake Security Team
To: Linux Mandrake Security Announcements
Subject: [Security Announce] MDKSA-2000:064 – ypbind and ypserv


                Linux-Mandrake Security Update Advisory

Package name:           ypbind and ypserv
Date:                   October 23rd, 2000
Advisory ID:            MDKSA-2000:064
Affected versions:      6.0, 6.1, 7.0, 7.1

Problem Description:

A format string parsing bug exists in ypbind 3.3 if it is run in
debug mode which leaks file descriptors under certain circumstances
which can lead to a DoS. In addition, ypbind may suffer from buffer
overflows. In the ypserv program, a buffer overflow and format bug
exist if the build system does not have vsyslog() or if configure
fails to detect it. Both vulnerabilities were discovered by Olaf
Kirch okir@caldera.de.

Please verify these md5 checksums of the updates prior to
upgrading to ensure the integrity of the downloaded package. You
can do this by running the md5sum program on the downloaded package
by using “md5sum package.rpm”.

Linux-Mandrake 6.0:                           
c94e16fe0699ef929c231e9dc02f8416  6.0/RPMS/ypbind-3.3-25mdk.i586.rpm
09c51e63bd71a9ef94d6f6abffad2698  6.0/RPMS/ypserv-1.3.9-4mdk.i586.rpm
9d4a59b36fb30f28ab78745fd30e5696  6.0/SRPMS/ypbind-3.3-25mdk.src.rpm
e8d779c42a6d36bd431e6b1fe7ded7d3  6.0/SRPMS/ypserv-1.3.9-4mdk.src.rpm
Linux-Mandrake 6.1:
e4432a5714fb995ea6c272206eff8f40  6.1/RPMS/ypbind-3.3-25mdk.i586.rpm
e7cbe8440877516c8b5dec04ca6429da  6.1/RPMS/ypserv-1.3.9-4mdk.i586.rpm
9d4a59b36fb30f28ab78745fd30e5696  6.1/SRPMS/ypbind-3.3-25mdk.src.rpm
e8d779c42a6d36bd431e6b1fe7ded7d3  6.1/SRPMS/ypserv-1.3.9-4mdk.src.rpm
Linux-Mandrake 7.0:
52dcef1933b60d109d752965e9ea0789  7.0/RPMS/ypbind-3.3-25mdk.i586.rpm
bea6a3029a09a7e8e291d742c5d4c08f  7.0/RPMS/ypserv-1.3.9-4mdk.i586.rpm
9d4a59b36fb30f28ab78745fd30e5696  7.0/SRPMS/ypbind-3.3-25mdk.src.rpm
e8d779c42a6d36bd431e6b1fe7ded7d3  7.0/SRPMS/ypserv-1.3.9-4mdk.src.rpm
Linux-Mandrake 7.1:
4ca3ef370ecb639c7d8d62900e2f9482  7.1/RPMS/ypbind-3.3-25mdk.i586.rpm
dd943d35562464810c88bceb02d3ee76  7.1/RPMS/ypserv-1.3.9-4mdk.i586.rpm
9d4a59b36fb30f28ab78745fd30e5696  7.1/SRPMS/ypbind-3.3-25mdk.src.rpm
e8d779c42a6d36bd431e6b1fe7ded7d3  7.1/SRPMS/ypserv-1.3.9-4mdk.src.rpm

To upgrade automatically, use

If you want to upgrade manually, download the updated package
from one of our FTP server mirrors and uprade with “rpm -Uvh

You can download the updates directly from:



Or try one of the other mirrors listed at:


Updated packages are available in the “updates/[ver]/RPMS/”
directory. For example, if you are looking for an updated RPM
package for Linux-Mandrake 7.1, look for it in “updates/7.1/RPMS/”.
Updated source RPMs are available as well, but you generally do not
need to download them.

Please be aware that sometimes it takes the mirrors a few hours
to update, so if you want an immediate upgrade, please use one of
the two above-listed mirrors.

You can view other security advisories for Linux-Mandrake


If you want to report vulnerabilities, please contact


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