Note: This is an archival copy of Security Sun Alert 201445 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1001090.1.
Date of Resolved Release
On Sun Linux 5.0, a local or remote unprivileged user ...
On Sun Linux 5.0, a local or remote unprivileged user may be able to prevent the "ypserv" NIS server process from answering NIS name service requests. As a result, clients currently bound to this NIS server may experience hangs or slowdowns. Users may no longer be able to login on affected NIS clients.
This issue is described in Red Hat Advisory RHSA-2003:173-07, available at: https://rhn.redhat.com/errata/RHSA-2003-173.html.
2. Contributing Factors
This issue can occur in the following releases:
Note: Sun Linux 5.0 is currently shipped with the Sun LX50 Server.
Should the described issue occur, the NIS server will not longer respond to client NIS requests. The "ypserv" process will still be present in the "ps -ef" command output.
To recover from an unresponsive NIS server, restart the "ypserv" process by issuing the following commands as a root user:
# /etc/init.d/ypserv stop # /etc/init.d/ypserv start
Until this issue is resolved, sites may consider to disable NIS server functionality on affected Sun Linux systems.
This issue is addressed in the following releases:
Sun Linux patches are available at http://sunsolve.sun.com/patches/linux/security.html.
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Sun Linux 5.0
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