Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 1371284

Summary: Disabling CLEAR password storage scheme will crash server when setting a password
Product: Red Hat Enterprise Linux 7 Reporter: Noriko Hosoi <nhosoi>
Component: 389-ds-baseAssignee: Noriko Hosoi <nhosoi>
Status: CLOSED ERRATA QA Contact: Viktor Ashirov <vashirov>
Severity: high Docs Contact:
Priority: high    
Version: 7.3CC: enewland, lmiksik, mreynolds, nkinder, rmeggins, sramling
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: 389-ds-base-1.3.5.10-9.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1371678 (view as bug list) Environment:
Last Closed: 2016-11-03 20:45:29 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1371678    

Description Noriko Hosoi 2016-08-29 19:40:17 UTC 
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/48975

The server always expects the the CLEAR password storage scheme to always be enabled.  If it is disabled then a NULL pointer gets dereferenced and the server crashes:

Program terminated with signal 11, Segmentation fault.
#0  valuearray_init_bervalarray_unhashed_only (pb=0x13ea250, pw_change=1, old_pw=0x0) at ldap/servers/slapd/modify.c:1460
1460                            if(strcmp(pwsp->pws_name, "CLEAR") == 0){

#0  valuearray_init_bervalarray_unhashed_only (pb=0x13ea250, pw_change=1, old_pw=0x0) at ldap/servers/slapd/modify.c:1460
#1  op_shared_modify (pb=0x13ea250, pw_change=1, old_pw=0x0) at ldap/servers/slapd/modify.c:968
#2  0x0000003c9208867e in do_modify (pb=0x13ea250) at ldap/servers/slapd/modify.c:408
#3  0x00000000004146d4 in connection_dispatch_operation () at ldap/servers/slapd/connection.c:594
#4  connection_threadmain () at ldap/servers/slapd/connection.c:2360
#5  0x00000036e4c29c13 in _pt_root (arg=0x1419ee0) at ../../../nspr/pr/src/pthreads/ptthread.c:212
#6  0x00000036e2c07aa1 in start_thread (arg=0x7f084e1fc700) at pthread_create.c:301
#7  0x00000036e28e8aad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115
Comment 1 mreynolds 2016-08-30 18:50:48 UTC 
Fixed upstream
Comment 3 Sankar Ramalingam 2016-09-09 04:08:50 UTC 
Verification steps:
1. Disable password storage scheme CLEAR
2. Add users with password with clear text.
3. Modify users password with clear text.
Comment 4 Sankar Ramalingam 2016-09-09 04:59:50 UTC 
[root@ratangad ~]# PORT=1189 ; /usr/bin/ldapmodify -x -p $PORT -h localhost -D "cn=Directory Manager" -w Secret123 << EOF> dn: cn=CLEAR,cn=Password Storage Schemes,cn=plugins,cn=config
> replace: nsslapd-pluginEnabled
> nsslapd-pluginEnabled: off
> EOF
modifying entry "cn=CLEAR,cn=Password Storage Schemes,cn=plugins,cn=config"

[root@ratangad ~]# PORT=1189 ; /usr/bin/ldapsearch -x -p $PORT -h localhost -D "cn=Directory Manager" -w Secret123 -b "cn=CLEAR,cn=Password Storage Schemes,cn=plugins,cn=config" |grep -i nsslapd-pluginEnabled
nsslapd-pluginEnabled: off

[root@ratangad MMR_WINSYNC]# cat DATA/PUser1.ldif |grep -i pass
userPassword: Secret123

[root@ratangad MMR_WINSYNC]# ./AddEntry.sh Users 1189 "ou=testing,dc=passsync,dc=com" clearusrpwd 3 localhost
adding new entry "uid=clearusrpwd3,ou=testing,dc=passsync,dc=com"
adding new entry "uid=clearusrpwd2,ou=testing,dc=passsync,dc=com"
adding new entry "uid=clearusrpwd1,ou=testing,dc=passsync,dc=com"

[root@ratangad ~]# PORT=1189 ; /usr/bin/ldapmodify -x -p $PORT -h localhost -D "cn=Directory Manager" -w Secret123 << EOF> dn: uid=clearusrpwd3,ou=Testing,dc=passsync,dc=com
> replace: userpassword
> userPassword: 123456www
> EOF
modifying entry "uid=clearusrpwd3,ou=Testing,dc=passsync,dc=com"

[root@ratangad ~]# ps -ef |grep -i slapd-M1
dsuser    3430     1  0 Sep07 ?        00:02:44 /usr/sbin/ns-slapd -D /etc/dirsrv/slapd-M1 -i /var/run/dirsrv/slapd-M1.pid

[root@ratangad MMR_WINSYNC]# PORT=1189 ; /usr/bin/ldapmodify -x -p $PORT -h localhost -D "cn=Directory Manager" -w Secret123 << EOFdn: cn=CLEAR,cn=Password Storage Schemes,cn=plugins,cn=config
replace: nsslapd-pluginEnabled
nsslapd-pluginEnabled: on 
EOF

modifying entry "cn=CLEAR,cn=Password Storage Schemes,cn=plugins,cn=config"

[root@ratangad MMR_WINSYNC]# ./AddEntry.sh Users 1189 "ou=testing,dc=passsync,dc=com" ONclearusrpwd 3 localhost
No of entries added will be 3
Adding 3 Users to 
adding new entry "uid=ONclearusrpwd3,ou=testing,dc=passsync,dc=com"

adding new entry "uid=ONclearusrpwd2,ou=testing,dc=passsync,dc=com"

adding new entry "uid=ONclearusrpwd1,ou=testing,dc=passsync,dc=com"

[root@ratangad ~]# PORT=1189 ; /usr/bin/ldapmodify -x -p $PORT -h localhost -D "cn=Directory Manager" -w Secret123 << EOF
dn: uid=ONclearusrpwd3,ou=Testing,dc=passsync,dc=com
replace: userpassword
userPassword: 2333$123456www
EOF

modifying entry "uid=ONclearusrpwd3,ou=Testing,dc=passsync,dc=com"

[root@ratangad ~]# ps -eaf |grep -i slapd-M1
dsuser    7797     1  0 10:21 ?        00:00:00 /usr/sbin/ns-slapd -D /etc/dirsrv/slapd-M1 -i /var/run/dirsrv/slapd-M1.pid
root     21787  9982  0 10:26 pts/2    00:00:00 grep --color=auto -i slapd-M1


Successfully added/modified clear text password to users by setting CLEAR password storage scheme plugin to Off/On. Hence, marking the bug as Verified.
Comment 5 Sankar Ramalingam 2016-09-09 05:00:31 UTC 
[root@ratangad MMR_WINSYNC]# rpm -qa |grep -i 389-ds-base
389-ds-base-1.3.5.10-10.el7.x86_64
389-ds-base-debuginfo-1.3.5.10-6.el7.x86_64
389-ds-base-libs-1.3.5.10-10.el7.x86_64
389-ds-base-devel-1.3.5.10-10.el7.x86_64
Comment 7 errata-xmlrpc 2016-11-03 20:45:29 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2016-2594.html