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(ITS#8660) slapd segmentation faults (relay backend and rwm overlay)
by nespor＠id.ethz.ch 24 May '17

24 May '17

Full_Name: Vlado Nespor Version: 2.4.44 OS: Red Hat el7 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (2001:67c:10ec:32d0::222) We have experienced random slapd segmentation faults, when the relay backend and rwm overlay were used in the configuration. After some time I could reproduce the segmentation fault on a slow client and with test queries, which were supposed to return a larger set of entries. I could trace the problem to a wrong pointer in the slap_writewait_play function in the openldap-2.4.44/servers/slapd/result.c file, and then further to the openldap-2.4.44/servers/slapd/back-relay/op.c file. After the addition of the sc_writewait pointer initialisation (see the patch below), the test queries returned correct results and random slapd segmentation faults disappeared. With best regards, Vlado Nespor diff -rupN openldap-2.4.44/servers/slapd/back-relay/op.c openldap-2.4.44_back-relay/servers/slapd/back-relay/op.c --- openldap-2.4.44/servers/slapd/back-relay/op.c 2016-02-06 00:57:45.000000000 +0100 +++ openldap-2.4.44_back-relay/servers/slapd/back-relay/op.c 2017-02-07 15:09:55.046188340 +0100 @@ -97,6 +97,7 @@ relay_back_response_cb( Operation *op, S (rcb)->rcb_sc.sc_next = (op)->o_callback; \ (rcb)->rcb_sc.sc_response = relay_back_response_cb; \ (rcb)->rcb_sc.sc_cleanup = 0; \ + (rcb)->rcb_sc.sc_writewait = 0; \ (rcb)->rcb_sc.sc_private = (op)->o_bd; \ (op)->o_callback = (slap_callback *) (rcb); \ }

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ITS#8655 published: SECURITY: Segfault by ldapsearch with pagesize=0
by openldap-its＠OpenLDAP.org 22 May '17

22 May '17

Private ITS#8655 is now publicly readable URL: http://www.OpenLDAP.org/its/?findid=8655

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Re: (ITS#8659) accesslog man page updates
by michael＠stroeder.com 18 May '17

18 May '17

quanah(a)symas.com wrote: > Seems like it would have been better to leave audit* attrs with slapo-auditlog I was not aware of a specific schema for slapo-auditlog (except attribute type 'olcAuditlogFile' for back-config). Ciao, Michael.

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Re: (ITS#8659) accesslog man page updates
by quanah＠symas.com 18 May '17

18 May '17

--On Thursday, May 18, 2017 6:10 PM +0200 Michael Str=C3=B6der=20 <michael(a)stroeder.com> wrote: > quanah(a)symas.com wrote: >> --On Thursday, May 18, 2017 9:23 AM +0000 elecharny(a)apache.org wrote: >>> There are some differences between the current slapo-accesslog man = page, >>> and the code base : >>> >>> - the auditObject ObjectClass is missing the reqEntryUUID AT >>> - the auditContainer ObjectClass is not described in the man page >>> - the auditModRDN ObjectClass is missing the reqMod AT >> >> I think you mean slapo-auditlog, not slapo-accesslog? > > No, Emmanuel is definitely referring to slapo-accesslog. Yeah, saw that when I grepped the code. Seems like it would have been=20 better to leave audit* attrs with slapo-auditlog and use something else for = accesslog. Oh well. --Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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Re: (ITS#8659) accesslog man page updates
by michael＠stroeder.com 18 May '17

18 May '17

This is a cryptographically signed message in MIME format. --------------ms020708080809040305030308 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable quanah(a)symas.com wrote: > --On Thursday, May 18, 2017 9:23 AM +0000 elecharny(a)apache.org wrote: >> There are some differences between the current slapo-accesslog man pag= e, >> and the code base : >> >> - the auditObject ObjectClass is missing the reqEntryUUID AT >> - the auditContainer ObjectClass is not described in the man page >> - the auditModRDN ObjectClass is missing the reqMod AT >=20 > I think you mean slapo-auditlog, not slapo-accesslog? No, Emmanuel is definitely referring to slapo-accesslog. 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Re: (ITS#8659) accesslog man page updates
by quanah＠symas.com 18 May '17

18 May '17

--On Thursday, May 18, 2017 9:23 AM +0000 elecharny(a)apache.org wrote: > Full_Name: Emmanuel Lecharny > Version: 2.4.45 > OS: > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (83.202.2.198) > > > There are some differences between the current slapo-accesslog man page, > and the code base : > > - the auditObject ObjectClass is missing the reqEntryUUID AT > - the auditContainer ObjectClass is not described in the man page > - the auditModRDN ObjectClass is missing the reqMod AT I think you mean slapo-auditlog, not slapo-accesslog? --Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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(ITS#8659) accesslog man page updates
by elecharny＠apache.org 18 May '17

18 May '17

Full_Name: Emmanuel Lecharny Version: 2.4.45 OS: URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (83.202.2.198) There are some differences between the current slapo-accesslog man page, and the code base : - the auditObject ObjectClass is missing the reqEntryUUID AT - the auditContainer ObjectClass is not described in the man page - the auditModRDN ObjectClass is missing the reqMod AT

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Re: (ITS#8658) Can't change olcTLSCipherSuite
by ryan＠nardis.ca 17 May '17

17 May '17

Hello Oleg, The Ubuntu package uses GnuTLS and therefore your olcTLSCipherSuite setting needs to contain a valid GnuTLS priority string. https://gnutls.org/manual/html_node/Priority-Strings.html The slapd crash you are seeing is an Ubuntu-specific bug and has been fixed in later versions. https://bugs.launchpad.net/bugs/1103353 If you configure a valid GnuTLS priority string, it will not crash. In future please report issues with distro packages to the distro's bug tracker (in this case Launchpad); we can always forward them here if appropriate. This ITS will be closed.

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Re: (ITS#8658) Can't change olcTLSCipherSuite
by quanah＠symas.com 17 May '17

17 May '17

--On Wednesday, May 17, 2017 9:24 AM +0000 slonvpalto(a)gmail.com wrote: > Full_Name: Oleg Pekar > Version: 2.4.31 Please use a current release of OpenLDAP. 2.4.31 is over 5 years old and hundreds of bugs with cn=config have been fixed since then. If you can reproduce the issue with a current release, then follow up at that time. In the meantime, this ITS will be closed. --Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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(ITS#8658) Can't change olcTLSCipherSuite
by slonvpalto＠gmail.com 17 May '17

17 May '17

Full_Name: Oleg Pekar Version: 2.4.31 OS: Ubuntu 14.04 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (2001:420:4482:1252:a136:e35f:4494:428b) When I try to change olcTLSCipherSuite in LDAP configuration I get the following error: root@LDAP-server:/oleg# ldapmodify -Y EXTERNAL -H ldapi:/// -d 1 -f cipher ldap_url_parse_ext(ldapi:///) ldap_create ldap_url_parse_ext(ldapi:///??base) ldap_sasl_interactive_bind: user selected: EXTERNAL ldap_int_sasl_bind: EXTERNAL ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_path ldap_new_socket: 4 ldap_connect_to_path: Trying /var/run/slapd/ldapi ldap_connect_timeout: fd: 4 tm: -1 async: 0 ldap_ndelay_on: 4 ldap_close_socket: 4 ldap_msgfree ldap_err2string ldap_sasl_interactive_bind_s: Can't contact LDAP server (-1) File "cipher" used for update in the command above: dn: cn=config changetype: modify replace: olcTLSCipherSuite olcTLSCipherSuite: AES128-SHA The server is indicated as running: root@LDAP-server:/oleg# service slapd status * slapd is running Therefore I cannot change the cipher that is used by secure LDAP. Thanks Oleg

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