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Date: Fri, 27 Apr 2001 07:06:42 -0700 (PDT)
From: tstrike@targetnet.com
To: freebsd-gnats-submit@FreeBSD.org
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Subject: ports/26894: omniORB 3.0.3 servers die when using FreeBSD 4.3 hosts.allow w/ service denied
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>Number:         26894
>Category:       ports
>Synopsis:       omniORB 3.0.3 servers die when using FreeBSD 4.3 hosts.allow w/ service denied
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-ports
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Apr 27 07:10:03 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Tim Strike
>Release:        4.3-STABLE
>Organization:
Targetnet
>Environment:
FreeBSD dev-405.tor4.targetnet.pvt 4.3-RC FreeBSD 4.3-RC #1: Thu Apr 19 09:27:08 EDT 2001     tim@dev-405.tor4.targetnet.pvt:/usr/obj/usr/src/sys/KERN_dev405  i386
>Description:
With hosts.allow to deny for any omniORB service, the server will die if it receives a call from a client to be denied.

Local client -> local server causes client to catch COMM_FAILURE and the server to emit error

Fatal error 'longjmp()ing between thread contexts is undefined by POSIX 1003.1' at line ? in file /usr/src/lib/libc_r/uthread/uthread_jmp.c (errno = ?)

and subsequently SIGABRT.  Using a remote client to a local server causes the server to die, without an error message.

Under FreeBSD 4.2, client catches COMM_FAILURE and server emits "connection refused" message (under logging) but continues to run.

OF NOTE: We tried replacing the tcpwrapper code in tcpwrapperGK with the standard FreeBSD libwrap, and the problem persisted.

OTHER NOTES: This appears to be related to either 1) compiler changes from 4.3 or 2) uthread changes from 4.3, but seems to affect only this port (that we've found).
>How-To-Repeat:
Use hosts.allow to deny service to an omniORB server (Echo from the dist. docs is fine) and use a client on a local or remote server to contact the server.
>Fix:
Setting access in hosts.allow to ALL for the service, but from a security standpoint, this is obviously unacceptable.
>Release-Note:
>Audit-Trail:
>Unformatted:

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