- openldap-bugs - openldap.org

Re: (ITS#8111) Re-ordering schema attributeTypes crashes slapd
by zach＠puppetlabs.com 18 Aug '15

18 Aug '15

--cDyoBSpeMmeqjtIY Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 17, 2015 at 05:35:11PM -0700, Ryan Tandy wrote: >Hi Zach, > >I just pushed a patch for another ITS that reminded me of this one. > >Assuming you can still reproduce this, would you please try the patch=20 >mentioned at the end of http://www.openldap.org/its/?findid=3D8199 and=20 >let us know whether it resolves your crash? I've upgraded to 2.4.41.1 from the LTB packages an no longer have the=20 issue. --=20 Zach Leslie :: Puppet Labs --cDyoBSpeMmeqjtIY Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- iQEcBAABCgAGBQJV02IGAAoJEH5UaJShK/iwqlwH/2Dc1xZor0I4of/4wWKN/o/y 73ZrwM/jsYsGez9jxU2t4gIhDfSBx38hqBFj801hGmF0Ef3xY8fDTlv7nEhXZ30J CEk2zQ4py0aBJG6kAe8sfZdmS8SPS6o2FzNoCR4w833oj11qYMIUbJLHzLsA6LWg STCcBapBIf0iHSfDBlwN3w93C5UXp71pWLAJEqcfSCtxhCCpAJr3WdndLjboN89c YVKl5NzDTmgInHmne4Ob+QFCN1nNw5z1uE2tkhV0FAw3QpVZsnDXIVW9Gjmr835c +UfQHqErY5PstxHY1V42h6CyX8IDby3rB5NuR31H/8uI0ToNaQry5EX40ZCvaa4= =BGFe -----END PGP SIGNATURE----- --cDyoBSpeMmeqjtIY--

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(ITS#8173)
by Adrian.Raemy＠vtg.admin.ch 18 Aug '15

18 Aug '15

Dear Howard, The fix runs stable now over weeks.=20 slapd didn't crashed anymore. Thank you for the help. I guess we can close the ticket. Best Regards Adrian=20

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Re: (ITS#8212) slapd stops on consumer node
by ryan＠openldap.org 15 Aug '15

15 Aug '15

Hi, I experimented with openldap 2.4.41 and the files you posted and did not experience any crashes. Please try to reduce the example setup as far as possible, until you find that the crash disappears after you disable a particular directive. Please also make sure you have the debugging symbols for slapd and libldap installed, and then try to provide a backtrace from gdb after triggering the crash, as well as the exact config files (and, if possible, relevant DIT contents, such as ppolicy configuration) that were in use at the time. Thanks for your help, Ryan

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Re: (ITS#8185) Clarification/enhancement request: purging stale pwdFailureTime attributes
by subbarao＠computer.org 14 Aug '15

14 Aug '15

On 08/14/2015 10:38 AM, Howard Chu wrote: > subbarao(a)computer.org wrote: >> In the particular situation that's prompting this request, it's not just >> two or three values -- for one entry it was over 38000 values that had >> accumulated over time! (and generally high values for many other >> entries). > > If you have entries with tens of thousands of Bind failures being > recorded, you have a security monitoring problem. The limit applied by > the patch for this ITS will only mask the problem. The fact that your > security auditors haven't already noticed these tens of thousands of > Bind failures and stopped them at their source means you've got a > major vulnerability in your network security. Hi Howard, what's happening here is that an application account's password has expired, and its owners have neglected to change the password. Meanwhile, the old password remains hardcoded in the application, which continues to issue BIND requests that fail. The functionality of this particular application isn't mission-critical -- it may even be deprecated at this point by another application, so it's likely not a priority for the account owners given everything else on their plates. In this customer environment, the monitoring of password failures has historically been done outside of LDAP, and focuses on user accounts which tend to have higher privileges. LDAP application accounts (which tend to have minimal privileges) aren't treated the same. These bind failures may get cleaned up at some point during a periodic review of application accounts with expired passwords, but it's not likely to happen soon, given the lower level of risk/impact. Given that the bind failures themselves aren't causing a problem (the system as a whole has ample capacity), the only operations-impacting issue is the continually increasing entry size. So for this customer environment, I feel the best approach for now is to simply purge the stale failure timestamps (which I would prefer to do with a standard OpenLDAP configuration setting than with an external script). As I mentioned in an earlier message, I see the slapo-ppolicy man page as being friendly to this feature request: "Excess timestamps beyond those allowed by pwdMaxFailure may also be purged." From my perspective, it's a valuable hygienic feature for environments such as this one. Regards, -Kartik

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Re: (ITS#8133) segfault at startup with memberof+dds
by ryan＠nardis.ca 14 Aug '15

14 Aug '15

Hi, On Wed, May 06, 2015 at 05:48:53PM +0000, alexoz66(a)gmail.com wrote: >When those two overlays are configured in this order: {0}memberof, {1}dds, slapd >will segfault at startup if dds finds a dynamicObject entry that is past its >expiration time. This does not occur if an object expires while slapd is >running, only during startup. A patch for this is in git master now. Please test it. http://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=patch;h=1c4942413… thanks, Ryan

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Re: (ITS#8185) Clarification/enhancement request: purging stale pwdFailureTime attributes
by hyc＠symas.com 14 Aug '15

14 Aug '15

subbarao(a)computer.org wrote: > In the particular situation that's prompting this request, it's not just > two or three values -- for one entry it was over 38000 values that had > accumulated over time! (and generally high values for many other entries). If you have entries with tens of thousands of Bind failures being recorded, you have a security monitoring problem. The limit applied by the patch for this ITS will only mask the problem. The fact that your security auditors haven't already noticed these tens of thousands of Bind failures and stopped them at their source means you've got a major vulnerability in your network security. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#8185) Clarification/enhancement request: purging stale pwdFailureTime attributes
by hyc＠symas.com 14 Aug '15

14 Aug '15

subbarao(a)computer.org wrote: > On 07/06/2015 01:30 PM, Michael Ströder wrote: >> Consider that you are under on-going attack with many different >> accounts affected by the lockout treshold. Then you cannot simply wait >> for pwdFailureCountInterval seconds because your system is changing >> all the time. >> >> Such a situation is a real world scenario. > > Ok -- I'm probably not understanding enough about your particular > scenario to fully appreciate the concerns that you express. But I think > there could be ways to address them in this enhancement -- for instance, > by adding optional parameter(s) like ppolicy_purge_failures <nfailures> > and/or ppolicy_purge_olderthan <timestamp>, which could then be > configured to accommodate the scenario you describe. > > At this point, I'll think I'll leave it up to the OpenLDAP developers as > to how they want to proceed on this, and/or to ask for more information. I've added a pwdMaxRecordedFailure attribute to the policy schema. Overloading pwdMaxFailure would be a mistake. MaxRecordedFailure will default to MaxFailure if that is set. It defaults to 5 if nothing is set. There's no good reason to allow the timestamps to accumulate without bound. This is now available for testing in git master. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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(ITS#8217) Add msvc support to lmdb
by nacho.resa＠gmail.com 13 Aug '15

13 Aug '15

Full_Name: Ignacio Casal Quinteiro Version: OS: Windows 7 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (83.30.165.68) On the url below you can find a fork that adds support for msvc builds: https://github.com/nice-software/lmdb/tree/wip/msvc https://github.com/nice-software/lmdb/commit/e871e736949dafee4e84f07c6cfb1b…

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(ITS#8216) Windows 'make test' failures
by mhardin＠symas.com 11 Aug '15

11 Aug '15

Full_Name: Matthew Hardin Version: 2.4.40 OS: Windows 7/64 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (69.43.206.100) Many 'make test' test fail, for a variety of reasons, with LMDB and BDB/HDB backends. OpenLDAP 2.4.40 Berkeley DB 4.8.30 Environment: MSYS from MinGW/MSYS 2013072300 Win-Builds MinGW 32- and 64-bit toolchain The following tests fail: test0-c-concurrency: problems reported by slapd-tester test039-glue-ldap-concurrency: seems to fail for the same reasons as test008 test043-delta-syncrepl: lmdb always fails, hdb/bdb sometimes test049-sync-config: config parsing problems test050-syncrepl-multimaster: config parsing problems test056-monitor: incorrect monitor output test058-syncrepl-asymmetric: parsing problems test059-slave-config: parsing problems test061-syncreplication-initiation: parsing prlelems test063-delta-multimaster: undetermined test064-constraint: include file processing (parsing?)

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(ITS#8215) Slapmodify delete support and documentation
by ondra＠mistotebe.net 11 Aug '15

11 Aug '15

Full_Name: Ond&#345;ej Kuzn.k Version: master OS: URL: ftp://ftp.openldap.org/incoming/Ondrej-Kuznik-20150811-slapmodify-delete-su… Submission from: (NULL) (62.84.155.99) It is only possible to delete entries in a back-ldif database. This patchset implements the equivalent functionality in the other core databases, enables the same in back-config and adds a slapmodify manpage. With that in place, test007-slapmodify is switched to fail on errors now. ModRDN stays unimplemented at this point. An outstanding issue is that valgrind complains about a memory leak in bdb on entry delete, which I have not been able to pinpoint nor fix. The above patch is derived from OpenLDAP Software. All of the modifications to OpenLDAP Software represented in the above patches were developed by Ondřej Kuzník <ondra(a)mistotebe.net>. I have not assigned rights and/or interest in this work to any party. I, Ondřej Kuzník, hereby place the above modifications to OpenLDAP Software (and only these modifications) into the public domain. Hence, these modifications may be freely used and/or redistributed for any purpose with or without attribution and/or other notice.

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Re: (ITS#8210) slapd-sock: second subsequent bind fails
by michael＠stroeder.com 10 Aug '15

10 Aug '15

This is a cryptographically signed message in MIME format. --------------ms010905090300000505030204 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: quoted-printable Ouch! 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Re: (ITS#8054) Operation duration logging
by hyc＠symas.com 10 Aug '15

10 Aug '15

Hallvard Breien Furuseth wrote: > Den 10. aug. 2015 14:41, skrev Hallvard Breien Furuseth: >> It's total time which is interesting when looking for hot spots >> which need attention. So I suggest that plus either one of the >> others, or percentage of the total spent doing one of the others. > > Sorry - total+one of the other was silly probably, it just > leaves us calculating the missing one when looking for that > one. Total + percentage of one of the others makes sense, > or (etime, qtime) since a high value still will stand out. > Yes, I prefer explicit (etime, qtime) - anyone who needs the total can add it up themselves. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#8054) Operation duration logging
by h.b.furuseth＠usit.uio.no 10 Aug '15

10 Aug '15

Den 10. aug. 2015 14:41, skrev Hallvard Breien Furuseth: > It's total time which is interesting when looking for hot spots > which need attention. So I suggest that plus either one of the > others, or percentage of the total spent doing one of the others. Sorry - total+one of the other was silly probably, it just leaves us calculating the missing one when looking for that one. Total + percentage of one of the others makes sense, or (etime, qtime) since a high value still will stand out. -- Hallvard

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Re: (ITS#8054) Operation duration logging
by h.b.furuseth＠usit.uio.no 10 Aug '15

10 Aug '15

Den 05. aug. 2015 18:38, skrev hyc(a)symas.com: >clem.oudot(a)gmail.com wrote: >> Seems other LDAP servers have choosen 'etime' (see >> http://ludopoitou.com/2015/02/24/about-auditing-ldap-operations/). Why >> not try to use the same word? > > etime is fine with me. The other problem here is that it's counting duration > from when slapd received the request (which is fine) but usually the op gets > queued immediately after. For this etime to be useful we need to know both the > amount of time spent queued, and the amount of time spent actually executing. > qtime and etime? It's total time which is interesting when looking for hot spots which need attention. So I suggest that plus either one of the others, or percentage of the total spent doing one of the others. -- Hallvard

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Re: (ITS#8198)
by peter＠adpm.de 08 Aug '15

08 Aug '15

Hi, you may want to have a look at Followup 1 for ITS#8205: I added a manual page for pbkdf2 and adapted it's Makefile to install it too. The commit can be found on my github repo: https://github.com/marschap/openldap/commit/f63202e8aa68e3391f52d2481f649ca… BTW: I successfully tested your nettle patch with by Debian-based server. Thank you! Best Peter -- Peter Marschall peter(a)adpm.de

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(ITS#8205)
by peter＠adpm.de 08 Aug '15

08 Aug '15

Hi, I extended the patch series with a manual page for pbkdf2 * https://github.com/marschap/openldap/commit/f63202e8aa68e3391f52d2481f649ca… contrib/passwd/pbkdf2: add man page, install it too Best Peter -- Peter Marschall peter(a)adpm.de

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(ITS#8214) slapo-rwm silently fails to convert config lines without rwm- prefix to cn=config
by ryan＠openldap.org 08 Aug '15

08 Aug '15

Full_Name: Ryan Tandy Version: OS: URL: Submission from: (NULL) (24.68.37.4) Submitted by: ryan A slapd.conf stanza like: overlay rwm rewriteEngine on works correctly in normal usage. Converting this to cn=config does not emit any olcRwmRewrite values, but succeeds nonetheless. The prefixed version: overlay rwm rwm-rewriteEngine on is converted correctly. In general, cn=config doesn't accept the unprefixed values at all, which is fine, but at least trying to ldapadd such a value returns an error. Considering this unimportant for now since the omitting the prefix is "strongly discouraged" by the man page.

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Re: (ITS#8213) When using the rwm, openldap down
by ryan＠nardis.ca 08 Aug '15

08 Aug '15

Hi, Patched in git master: http://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=commitdiff;h=7380… Please test the patch, and report any problems with it. Thanks!

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(ITS#8213) When using the rwm, openldap down
by ohno＠designet.co.jp 08 Aug '15

08 Aug '15

Full_Name: Kimiyoshi Ohno Version: 2.4.41 OS: CentOS 7 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (220.211.13.215) When I changed configuration for openldap, openldap stopped. (Aborted) I was carried out the following operations. (1) I created the following environment. ---- ---- ---- ---- # ldapsearch -LLL -Y EXTERNAL -b 'olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config' -H ldapi:/// SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 dn: olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config objectClass: olcOverlayConfig objectClass: olcRwmConfig olcOverlay: {0}rwm olcRwmRewrite: {0}rwm-rewriteEngine on olcRwmRewrite: {1}rwm-rewriteContext searchFilter olcRwmRewrite: {2}rwm-rewriteRule "aaa" "111" ":@" olcRwmRewrite: {3}rwm-rewriteRule "bbb" "222" ":@" ---- ---- ---- ---- (2) I created the following ldif file. ---- ---- ---- ---- dn: olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config changetype: modify delete: olcRwmRewrite olcRwmRewrite: rwm-rewriteRule "aaa" "111" ":@" - ---- ---- ---- ---- (3) I was carried out ldapmodify. ---- ---- ---- ---- # ldapmodify -Y EXTERNAL -H ldapi:/// -f down.ldif SASL/EXTERNAL authentication started SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth SASL SSF: 0 modifying entry "olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config" ldap_result: Can't contact LDAP server (-1) ---- ---- ---- ---- In this case, openldap has stopped. : : 55c45c8b connection_get(16) 55c45c8b ==> sasl_bind: dn="" mech=EXTERNAL datalen=0 55c45c8b SASL Canonicalize [conn=1000]: authcid="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth" 55c45c8b slap_sasl_getdn: conn 1000 id=gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth [len=55] 55c45c8b SASL Canonicalize [conn=1000]: slapAuthcDN="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth" 55c45c8b SASL proxy authorize [conn=1000]: authcid="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth" authzid="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth" 55c45c8b connection_get(16) 55c45c8b conn=1000 op=1 do_modify: dn (olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config) => ldap_bv2dn(olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config,0) <= ldap_bv2dn(olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config)=0 => ldap_dn2bv(272) <= ldap_dn2bv(clcOverlay={0}rwm,olcDatabase={1}bdb,cn=config)=0 => ldap_dn2bv(272) <= ldap_dn2bv(olcOverlay={0}rwm,olcDatabase={1}bdb,cn=config)=0 55c45c8b conn=1000 op=1 modifications: 55c45c8b delete: olcRwmRewrite 55c45c8b one value, length 32 55c45c8b [slapd:0] unknown command '' slapd: rwm.c:2195: rwm_cf_gen: Assertion `rc == 0' failed. Aborted Is this openldap BUG?

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Re: (ITS#8054) Operation duration logging
by hyc＠symas.com 05 Aug '15

05 Aug '15

clem.oudot(a)gmail.com wrote: > 2015-02-11 18:33 GMT+01:00 <h.b.furuseth(a)usit.uio.no>: >> On 11. feb. 2015 12:38, Michael Str=C3=B6der wrote: >>> h.b.furuseth(a)usit.uio.no wrote: >>>> Cool feture, but please use fewer characteres in the already >>>> bloated log. How about "time=3D<integer>us" or even omit the "us"? >>> >>> +1 >>> >>> But 'time' sounds a bit general. >>> How about 'tdu' or even 'td' as abbreviation for "time duration"? >> >> I don't think so. You can't see from that what it means unless you >> already know, so you have to look it up just to see if you're >> interested. 'time' you can decide to look up if you are interested. >> > > Seems other LDAP servers have choosen 'etime' (see > http://ludopoitou.com/2015/02/24/about-auditing-ldap-operations/). Why > not try to use the same word? etime is fine with me. The other problem here is that it's counting duration from when slapd received the request (which is fine) but usually the op gets queued immediately after. For this etime to be useful we need to know both the amount of time spent queued, and the amount of time spent actually executing. qtime and etime? -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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RE: (ITS#8212) slapd stops on consumer node
by Steen.Brandtmar＠ibapplications.com 05 Aug '15

05 Aug '15

--_003_DB4PR03MB0911E60223F1AE5F6D332DA881750DB4PR03MB0911eurp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi I did an upgrade to 2.4.41 on the consumer node. Then restarted. Consumer IP =3D 10.0.100.6 Provider IP=3D10.0.100.5 Then - on consumer - I executed this command: /usr/local/bin/ldappasswd -x -D uid=3Dxxxxxx,ou=3DPeople,dc=3Diba,dc=3Dloca= l -w oldpasswod -H ldap://10.0.100.6 -Z -s newpassword uid=3Dxxxxxx,ou=3DPe= ople,dc=3Diba,dc=3Dlocal ldap_result: Can't contact LDAP server (-1) And logfile writes: Aug 4 16:33:40 mgmt1 slapd[17418]: conn=3D1141 fd=3D18 ACCEPT from IP=3D10= .0.100.6:42621 (IP=3D0.0.0.0:389) Aug 4 16:33:40 mgmt1 slapd[17418]: conn=3D1141 op=3D0 EXT oid=3D1.3.6.1.4.= 1.1466.20037 Aug 4 16:33:40 mgmt1 slapd[17418]: conn=3D1141 op=3D0 STARTTLS Aug 4 16:33:40 mgmt1 slapd[17418]: conn=3D1141 op=3D0 RESULT oid=3D err=3D= 0 text=3D Aug 4 16:33:40 mgmt1 slapd[17418]: conn=3D1141 fd=3D18 TLS established tls= _ssf=3D128 ssf=3D128 Aug 4 16:33:40 mgmt1 slapd[17418]: conn=3D1141 op=3D1 BIND dn=3D"uid=3Dxxx= xxx,ou=3DPeople,dc=3Diba,dc=3Dlocal" method=3D128 Aug 4 16:33:40 mgmt1 slapd[17418]: conn=3D1141 op=3D1 BIND dn=3D"uid=3Dxxx= xxx,ou=3DPeople,dc=3Diba,dc=3Dlocal" mech=3DSIMPLE ssf=3D0 Aug 4 16:33:40 mgmt1 slapd[17418]: ppolicy_bind: Entry uid=3Dxxxxxx,ou=3DP= eople,dc=3Diba,dc=3Dlocal has an expired password: 6 grace logins Aug 4 16:33:41 mgmt1 slapd[17418]: conn=3D1141 op=3D1 RESULT tag=3D97 err= =3D0 text=3D Aug 4 16:33:41 mgmt1 slapd[17418]: conn=3D1141 op=3D2 EXT oid=3D1.3.6.1.4.= 1.4203.1.11.1 Aug 4 16:33:41 mgmt1 slapd[17418]: conn=3D1141 op=3D2 PASSMOD id=3D"uid=3D= xxxxxx,ou=3DPeople,dc=3Diba,dc=3Dlocal" new and slapd stops. I've attached configs for consumer and provider. Regards Steen Steen Brandtmar +45 2893 5392 Insurance Business Applications Gammel Kongevej 1, 4. sal 1610 K=F8benhavn, Danmark =A0=A0=A0 -----Original Message----- From: openldap-its(a)OpenLDAP.org [mailto:openldap-its@OpenLDAP.org]=20 Sent: 4. august 2015 13:55 To: Steen Brandtmar <Steen.Brandtmar(a)ibapplications.com> Subject: Re: (ITS#8212) slapd stops on consumer node *** THIS IS AN AUTOMATICALLY GENERATED REPLY *** Thanks for your report to the OpenLDAP Issue Tracking System. Your report = has been assigned the tracking number ITS#8212. One of our support engineers will look at your report in due course. Note that this may take some time because our support engineers are volunte= ers. They only work on OpenLDAP when they have spare time. If you need to provide additional information in regards to your issue repo= rt, you may do so by replying to this message. Note that any mail sent to = openldap-its(a)openldap.org with (ITS#8212) in the subject will automatically= be attached to the issue report. mailto:openldap-its@openldap.org?subject=3D(ITS#8212) You may follow the progress of this report by loading the following URL in = a web browser: http://www.OpenLDAP.org/its/index.cgi?findid=3D8212 Please remember to retain your issue tracking number (ITS#8212) on any furt= her messages you send to us regarding this report. If you don't then you'l= l just waste our time and yours because we won't be able to properly track = the report. Please note that the Issue Tracking System is not intended to be used to se= ek help in the proper use of OpenLDAP Software. Such requests will be closed. OpenLDAP Software is user supported. http://www.OpenLDAP.org/support/ -------------- Copyright 1998-2007 The OpenLDAP Foundation, All Rights Reserved. --_003_DB4PR03MB0911E60223F1AE5F6D332DA881750DB4PR03MB0911eurp_ Content-Type: text/plain; name="slapd.provider.conf.txt" Content-Description: slapd.provider.conf.txt Content-Disposition: attachment; filename="slapd.provider.conf.txt"; size=4671; creation-date="Tue, 04 Aug 2015 14:52:51 GMT"; modification-date="Tue, 04 Aug 2015 14:52:51 GMT" Content-Transfer-Encoding: base64 Iw0KIyBTZWUgc2xhcGQuY29uZig1KSBmb3IgZGV0YWlscyBvbiBjb25maWd1cmF0aW9uIG9wdGlv bnMuDQojIFRoaXMgZmlsZSBzaG91bGQgTk9UIGJlIHdvcmxkIHJlYWRhYmxlLg0KIw0KaW5jbHVk ZSAgICAgICAgIC91c3IvbG9jYWwvZXRjL29wZW5sZGFwL3NjaGVtYS9jb3JlLnNjaGVtYQ0KaW5j bHVkZSAgICAgICAgIC91c3IvbG9jYWwvZXRjL29wZW5sZGFwL3NjaGVtYS9jb3NpbmUuc2NoZW1h DQppbmNsdWRlICAgICAgICAgL3Vzci9sb2NhbC9ldGMvb3BlbmxkYXAvc2NoZW1hL25pcy5zY2hl bWENCmluY2x1ZGUgICAgICAgICAvdXNyL2xvY2FsL2V0Yy9vcGVubGRhcC9zY2hlbWEvaW5ldG9y 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Re: (ITS#8212) slapd stops on consumer node
by michael＠stroeder.com 04 Aug '15

04 Aug '15

Steen.brandtmar(a)ibapplications.com wrote: > We are running two servers in mirrormode. > When we run ldappasswd on provider node all is OK and passwords are changed in > bdb. Logfile shows PASSMOD on relevant uid. > When we run the same ldappasswd command on consumer node, slapd stops abruptly > on this node and must be started manually. Could you please retry with 2.4.41? If it's still a problem with 2.4.41 a stripped down config for reproducing the issue would be good. Ciao, Michael.

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(ITS#8212) slapd stops on consumer node
by Steen.brandtmar＠ibapplications.com 04 Aug '15

04 Aug '15

Full_Name: Steen Brandtmar Version: 2.4.40 OS: Linux Ubuntu 12.04 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (86.48.99.242) Hi We are running two servers in mirrormode. When we run ldappasswd on provider node all is OK and passwords are changed in bdb. Logfile shows PASSMOD on relevant uid. When we run the same ldappasswd command on consumer node, slapd stops abruptly on this node and must be started manually.

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(ITS#8211) ssf does not reflect actual security of connection
by hkario＠redhat.com 03 Aug '15

03 Aug '15

Full_Name: Hubert Kario Version: all OS: Linux URL: Submission from: (NULL) (213.175.37.10) Section "14.2.1. Security Strength Factors"[1] states "A SSF greater than one (>1) roughly correlates to the effective encryption key length.". This is not the case more often than not. Problem is that ssf as it is calculated now doesn't take into consideration all the cryptographic primitives in use. In other words, a connection that uses a 512 bit RSA certificates and negotiates TLS_RSA_WITH_AES_128_CBC_SHA (AES256-SHA) certainly does not provide security equivalent to "modern strong ciphers"[2][3] and should be awarded "256". Similarly a connection that uses 512 bit DH parameters and negotiates TLS_DHE_RSA_WITH_AES_256_CBC_SHA (DHE-RSA-AES256-SHA) does not provide security that should be awarded "256"[5]. In fact, recommending use of high key sizes[2] will cause the connection to use _less_ secure CBC ciphersuites[5] with clients that support AEAD ciphersuites with AES-128 only (like Thunderbird and Firefox do). Section 8.4.9[2] also calls RC4 a "modern strong cipher", most cryptographers disagree[6]. So I think either: 1). ssf needs to be redefined to consider any value higher that "2" to be equal, and requiring the server administrators to enable only ciphersuites they consider secure, or 2). the whole code that calculates ssf needs to be updated to take into account many more things: * use of AEAD * use of Encrypt-then-MAC * the protocol version used (both because TLS1.0 specific attacks[7] as wewell as the use of SHA1+MD5 for signatures which limits the connection security to 80 bits[8] (optimistically) if client certificates are in use in TLS < 1.2) * encryption algorithm on session tickets * current state of attacks on a given ciphersuite * the size of ECDHE curve, FFDHE prime or server certificate key size, depending on ciphersuite negotiated * the signature algorithm used in Certificate Verify message * the key size of client certificate * the signature on the client certificate and key sizes in CA certificates * the HMAC used * key size of the symmetric cipher * (probably other things I didn't think about) 1 - http://www.openldap.org/doc/admin24/security.html 2 - http://w.w.openldap.org/doc/admin24/access-control.html section 8.4.9 3 - https://freakattack.com/ 4 - https://weakdh.org/ 5 - http://www.isg.rhul.ac.uk/tls/Lucky13.html 6 - https://tools.ietf.org/html/rfc7465 7 - https://en.wikipedia.org/wiki/Transport_Layer_Security#BEAST_attack 8 - https://www.iacr.org/cryptodb/archive/2004/CRYPTO/1472/1472.pdf

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Re: (ITS#8209) Broken MDB_CP_COMPACT threading
by h.b.furuseth＠usit.uio.no 03 Aug '15

03 Aug '15

Okay, that was one confused ITS in response to equally confused code. Trying again. Draft fixes in my updated branch "mdb/copyfd1" (non-fast-forward). It's broken if mdb_env_copythr() has a write error: * copyfd1 can (A) overrun buffer mc_wlen, and (B) hang, if if cthr_toggle() is in cond_wait() when the error occurs: It sets mc_new and returns success. cwalk() proceeds to write at mc_wbuf+mc_wlen, but copythr() did not reset mc_wlen. Then copyfd1() waits for the now-dead copythr() to clear mc_new. Fixes: (A) join the if(mc_status) and while(mc_new==1) in cthr_toggle. (B) Drop the wait before THREAD_FINISH(), it seems pointless. Both Posix and Windows doc say that THREAD_FINISH waits. Or if Windows needs it for some reason, then copythr must live until it receives mc_new=-1, so it can set mc_new=0. * copyfd1() loses any error from the final cthr_toggle(). Fix: Return rc ? rc : my.mc_status. Tested on Linux with fake write errors, with/without fixes. While not a bug, I also see no point in both threads' initial waits. copyfd1() can own the buffer initially (set mc_new=0). I'm guessing the waits are there because the code tries to guide the threads from step to step, but it broke because you didn't think of every possibility. It's easier to define and maintain one cond_wait state per thread and keep things consistent there. More on error checking: copyfd1() omits most error checking and the cleanup after errors. E.g. it does not tell copythr to finish if txn_begin fails. Each thread is slow to react to errors in the other thread. I/O will cease quicker if both threads set and check mc_status. If so, mc_status can no longer be part of the cond_wait condition, since it won't be mutex-protected. So the threads might chat a bit more before finishing. I'd rename mc_status -> mc_error. "while (!my->mc_error && ...)" is quite self-explanatory, unlike "while (!my->mc_status && ...)". About lock/unlock outside vs. inside the loop: When outside, copythr() must block for the threads to exchange buffers. When inside, the slowest thread does not block, but there are more lock/unlock/wait calls. Testing: Locks inside is clearly faster on tmpfs. On a regular FS I don't know - it may have been a bit slower, but times varied more than the difference. Finally, cwalk() could re-use the page buffers it mallocs. -- Hallvard

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