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Date:      Sun, 29 Feb 2004 11:49:40 -0500 (EST)
From:      Daniel Ellard <ellard@eecs.harvard.edu>
To:        FreeBSD-gnats-submit@FreeBSD.org
Subject:   bin/63535: getpwent segfaults when NIS groups used by top, finger
Message-ID:  <20040229164940.22E1530D@ant.eecs.harvard.edu>
Resent-Message-ID: <200402291650.i1TGoJJU046766@freefall.freebsd.org>

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>Number:         63535
>Category:       bin
>Synopsis:       getpwent segfaults when NIS groups used by top, finger
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 29 08:50:19 PST 2004
>Closed-Date:
>Last-Modified:
>Originator:     Daniel Ellard
>Release:        FreeBSD 4.8-RELEASE-p15 i386
>Organization:
Harvard University
>Environment:
System: FreeBSD ant.eecs.harvard.edu 4.8-RELEASE-p15 FreeBSD 4.8-RELEASE-p15 #5: Fri Feb 20 10:27:42 EST 2004 ellard@ant.eecs.harvard.edu:/usr/obj/usr/freebsd_4.8/src/sys/ANT i386

	This also occurs, with exactly the same symptoms,
	on 4.9-RELEASE-p2 and 4.7-RELEASE-p25

>Description:

	Applications like top and finger that use getpwent segfault
	if logins are limited via NIS groups.

>How-To-Repeat:

	You must be using NIS for passwords in order recreate this.
	Edit (usinv vipw or equiv) /etc/passwd: if there is a line
	like "+:::::::::" remove it and add "+@foo:::::::::" where
	"foo" is a valid group name provided via NIS.  Then try running
	top or "finger bar" (where bar can be any name, valid or not).

	top or finger will segfault in getpwent.

>Fix:

	Unknown.


>Release-Note:
>Audit-Trail:
>Unformatted:



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