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Date: Mon, 21 Jan 2002 19:06:20 +0200 (EET)
From: Nevermind <never@nevermind.kiev.ua>
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Subject: ports/34123: sudo coredumps on ^C in password prompt & kern.sugid_coredump=1 does not work, suid files do not leave core
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>Number:         34123
>Category:       ports
>Synopsis:       sudo coredumps on ^C in password prompt & kern.sugid_coredump=1 does not work, suid files do not leave core
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-ports
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jan 21 09:10:02 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Nevermind
>Release:        FreeBSD 4.5-PRERELEASE i386
>Organization:
Net.Style Ltd.
>Environment:
System: FreeBSD mile.nevermind.kiev.ua 4.5-PRERELEASE FreeBSD 4.5-PRERELEASE #0: Sun Dec 23 16:39:07 EET 2001 root@mile.nevermind.kiev.ua:/usr/obj/usr/src/sys/mile i386

>Description:
	1. If you run sudo -s, then on password prompt type ^C, sudo segfaults. 
	   As far as sudo is suid, it does not leave core until sysctl kern.sugid_coredump=1.
	2. kern.sugid_coredump=1 does not affect coredumping:

	bash-2.05$ sudo -s
	Password:^C
	Segmentation fault (core dumped)
	bash-2.05$ sysctl -a | grep gid
	kern.sugid_coredump: 1
	bash-2.05$ sysctl -a | grep corefile
	kern.corefile: %N.core
	bash-2.05$ sysctl -a | grep kern.coredump
	kern.coredump: 1
	bash-2.05$ ls -la sudo.core
	ls: sudo.core: No such file or directory
	bash-2.05$ pkg_info | grep sudo
	sudo-1.6.5.1        Allow others to run commands as root
	bash-2.05$ uname -a
	FreeBSD rabbit.xxx 4.5-PRERELEASE FreeBSD 4.5-PRERELEASE #0: Wed Dec 26 14:58:13 EET 2001     root@rabbit.xxx:/usr/obj/usr/src/sys/rabbit  i386

>How-To-Repeat:
	sudo -s
	type ^C
	sysctl kern.sugid_coredump=1
	sudo -s
	type ^C
	ls -la sudo.core
>Fix:

	N/A
>Release-Note:
>Audit-Trail:
>Unformatted:

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