SuSE Security Announcement Package: ypserv prior 1.3.9 Date: Tue Sep 28 08:38:50 CEST 1999 Affected: all linux distributions using the ypserv package
A security hole was 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
Please note, that that we provide this information on “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.
- Problem Description
The package ypserv is the former “yellow pages”, now called NIS
information service, which is used for e.g. central network user
account management. Several vulnerability exists: ypserv prior
1.3.9 allows an administrator in the NIS domain to inject password
tables; rpc.yppasswd prior 184.108.40.206 has got a buffer overflow in
the md5 hash generation [SuSE linux is unaffected by this, other
linux falvors are]; rpc.yppasswdd prior 1.3.9 allows users to
change GECO and login shell values of other users.
If administrator access to one server in the NIS domain is
compromised, access to the whole domain can be achieved. On some
linux distributions other than SuSE, The rpc.yppasswdd service may
halt unexpectedly. It is theoretically possible to execute arbitary
code on these systems too. User information can be changed and
restricted accounts opened.
Updated the package from our FTP server.
Here are the md5 checksums of the upgrade packages, please
verify these before installing the new packages:
abe34d8d1831550059b3fad160fe41f5 ypserv-1.3.9-0.i386.rpm (6.1) 6937d10896d2b5beb18471491ca57781 ypserv-1.3.9-0.alpha.rpm (AXP) 19472f128099cb1e311f2db247acd39f ypserv-1.3.9-0.i386.rpm (6.2)
For SuSE 6.0 users: please use the 6.1 version.
You will find the update on our ftp-Server:
Webpage for patches: