Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 6 Sep 2001 13:23:55 +0300
From:      Peter Pentchev <roam@ringlet.net>
To:        markm@FreeBSD.org
Cc:        re@FreeBSD.org, audit@FreeBSD.org
Subject:   Re: bin/30357: core dump in libpam.so when parsing config file
Message-ID:  <20010906132355.C1477@ringworld.oblivion.bg>

next in thread | raw e-mail | index | archive | help
Hi,

I can reproduce the problem, and the (trivial-looking) patch really
fixes it.  Would there be much harm in taking pam_misc.c off the vendor
branch and fixing (*and* MFC'ing) this before 4.4 goes out?
A PAM-related coredump does look kind of important to me..

G'luck,
Peter

-- 
This sentence every third, but it still comprehensible.

----- Forwarded message from Edward Counce <edward.counce@celion.com> -----

Date: Wed, 5 Sep 2001 14:33:43 -0700 (PDT)
From: Edward Counce <edward.counce@celion.com>
To: freebsd-gnats-submit@FreeBSD.org
X-Send-Pr-Version: www-1.0
Subject: bin/30357: core dump in libpam.so when parsing config file
List-ID: <freebsd-bugs.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/>; (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-bugs>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-bugs>


>Number:         30357
>Category:       bin
>Synopsis:       core dump in libpam.so when parsing config file
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Sep 05 14:40:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Edward Counce
>Release:        4.3-RELEASE
>Organization:
Celion Networks, Inc.
>Environment:
FreeBSD ecounce 4.3-RELEASE FreeBSD 4.3-RELEASE #0: Sat Apr 21 10:54:49 GMT 2001     jkh@narf.osd.bsdi.com:/usr/src/sys/compile/GENERIC  i386
>Description:
While parsing the configuration file, numeric (jump) actions in the newer control flag syntax may cause a core dump.

>How-To-Repeat:
add to /etc/pam.conf:

sshd auth [success=1 default=ignore] pam_tacplus.so

>Fix:
Index: pam_misc.c
===================================================================
RCS file: /home/ncvs/src/contrib/libpam/libpam/pam_misc.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 pam_misc.c
--- pam_misc.c  18 Nov 1998 01:16:19 -0000      1.1.1.1
+++ pam_misc.c  5 Sep 2001 21:16:36 -0000
@@ -278,7 +278,7 @@
        }

        /* observe action type */
-       for (act=0; act<=-_PAM_ACTION_UNDEF; ++act) {
+       for (act=0; act<-_PAM_ACTION_UNDEF; ++act) {
            len = strlen(_pam_token_actions[act]);
            if (!strncmp(_pam_token_actions[act], tok, len)) {
                act *= -1;
>Release-Note:
>Audit-Trail:
>Unformatted:

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message


----- End forwarded message -----

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-audit" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010906132355.C1477>