openldap-bugs September 2024

openldap-bugs@openldap.org

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[Bug 9256] New: The ACLs required for SASL binding are not fully documented
by openldap-its＠openldap.org 04 Dec '25

04 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=9256 Bug ID: 9256 Summary: The ACLs required for SASL binding are not fully documented Product: OpenLDAP Version: 2.5 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: kop(a)karlpinc.com Target Milestone: --- Created attachment 727 --> https://bugs.openldap.org/attachment.cgi?id=727&action=edit Patch massaging the SASL binding requirement docs While some ACL requirements for SASL binding are documented, some are not. E.g, that olcAuthzRegexp requires =x on objectClass when direct DN mapping is not documented. Other requirements can be reasoned out based on the existing documentation, but this can be very difficult when unfamiliar with all the moving parts and the places they are documented. E.g. knowing that (objectClass=*) is the default filter, and that there's _always_ _some_ filter, and connecting this with ACLs required to do search-based SASL mapping. The attached patch brings all the SASL binding requirements together in one place in the docs and makes everything explicit. The word "SASL" is included, for those searching for that keyword. I, Karl O. Pinc, hereby place the following 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. -- You are receiving this mail because: You are on the CC list for the bug.

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[Bug 9220] New: Rewrite Bind and Exop result handling
by openldap-its＠openldap.org 04 Dec '25

04 Dec '25

https://bugs.openldap.org/show_bug.cgi?id=9220 Bug ID: 9220 Summary: Rewrite Bind and Exop result handling Product: OpenLDAP Version: 2.5 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- Bind and Exop result handling needs a rewrite so it is no longer a special case for overlays. -- You are receiving this mail because: You are on the CC list for the bug.

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[Issue 9731] New: startup messages still go to syslog when logfile-only is on
by openldap-its＠openldap.org 25 Nov '25

25 Nov '25

https://bugs.openldap.org/show_bug.cgi?id=9731 Issue ID: 9731 Summary: startup messages still go to syslog when logfile-only is on Product: OpenLDAP Version: 2.6.0 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- When setting logfile-only on, slapd still logs its startup message to syslog: Oct 29 21:07:47 u18test slapd[18534]: @(#) $OpenLDAP: slapd 2.6.0 (Oct 29 2021 05:12:17) $#012#011openldap This is useful information to have consolidated into the specified logfile. Note that: 617c62a3.16f03fdb 0x7f9325ed67c0 slapd starting does make it to the logfile. However, it would be useful to have the build date and version in the specified logfile. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9726] New: Admin guide and man pages need better documentation on disabling syslog
by openldap-its＠openldap.org 11 Nov '25

11 Nov '25

https://bugs.openldap.org/show_bug.cgi?id=9726 Issue ID: 9726 Summary: Admin guide and man pages need better documentation on disabling syslog Product: OpenLDAP Version: 2.6.0 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- 2.6.0 added the new feature allowing using a logfile for all debug/loglevel messages and bypassing syslog entirely. However, there is no documentation on the new settings or examples of how to do this in the admin guide, and the man page sections on the new parameters for the logfile side do not note at when/how they enable bypassing syslog. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10169] New: Add support for token only authentication with otp overlay
by openldap-its＠openldap.org 04 Nov '25

04 Nov '25

https://bugs.openldap.org/show_bug.cgi?id=10169 Issue ID: 10169 Summary: Add support for token only authentication with otp overlay Product: OpenLDAP Version: 2.6.6 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- Currently the OTP overlay is password + token. It would be nice to be able to configure it so it can run in a token only mode, similar to the slapo-totp overlay in contrib. This would allow us to have a project supported solution and retire that contrib module. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9564] New: Race condition with freeing the spilled pages from transaction
by openldap-its＠openldap.org 04 Nov '25

04 Nov '25

https://bugs.openldap.org/show_bug.cgi?id=9564 Issue ID: 9564 Summary: Race condition with freeing the spilled pages from transaction Product: LMDB Version: 0.9.29 Hardware: Other OS: Mac OS Status: UNCONFIRMED Severity: normal Priority: --- Component: liblmdb Assignee: bugs(a)openldap.org Reporter: kriszyp(a)gmail.com Target Milestone: --- Created attachment 825 --> https://bugs.openldap.org/attachment.cgi?id=825&action=edit Free the spilled pages and dirty overflows before unlocking the write mutex The spilled pages (a transaction's mt_spill_pgs) is freed *after* a write transaction's mutex is unlocked (in mdb.master3). This can result in a race condition where a second transaction can start and subsequently assign a new mt_spill_pgs list to the transaction structure that it reuses. If this occurs after the first transaction unlocks the mutex, but before it performs the free operation on mt_spill_pgs, then the first transaction will end up calling a free on the same spilled page list as the second transaction, resulting in a double free (and crash). It would seem to be an extremely unlikely scenario to actually happen, since the free call is literally the next operation after the mutex is unlocked, and the second transaction would need to make it all the way to the point of saving the freelist before a page spill list is likely to be allocated. Consequently, this probably has rarely happened. However, one of our users (see https://github.com/DoctorEvidence/lmdb-store/issues/48 for the discussion) has noticed this occurring, and it seems that it may be particularly likely to happen on MacOS on the new M1 silicon. Perhaps there is some peculiarity to how the threads are more likely to yield execution after a mutex unlock, I am not sure. I was able to reproduce the issue by intentionally manipulating the timing (sleeping before the free) to verify that the race condition is technically feasible, and apparently this can happen "in the wild" on MacOS, at least with an M1. It is also worth noting that this is due to (or a regression from) the fix for ITS#9155 (https://github.com/LMDB/lmdb/commit/cb256f409bb53efeda4ac69ee8165a0b4fc1a277) where the free call was moved outside the conditional (for having a parent) that had previously never been executed after the mutex is unlocked, but now is called after the unlock. Anyway, the solution is relatively simple, the free call simply has to be moved above the unlock. In my patch, I also moved the free call for mt_dirty_ovs. I am not sure what OVERFLOW_NOTYET/mt_dirty_ovs is for, but presumably it should be handled the same. This could alternately be solved by saving the reference to these lists before unlocking, and freeing after unlocking, which would slightly decrease the amount of processing within the mutex guarded code. Let me know if you prefer a patch that does that. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10205] New: SSL handshake blocks forever in async mode if server unaccessible
by openldap-its＠openldap.org 23 Sep '25

23 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10205 Issue ID: 10205 Summary: SSL handshake blocks forever in async mode if server unaccessible Product: OpenLDAP Version: 2.5.17 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: regtube(a)hotmail.com Target Milestone: --- When ldaps:// scheme is used to connect to currently unaccessible server with LDAP_OPT_CONNECT_ASYNC and LDAP_OPT_NETWORK_TIMEOUT options set, it blocks forever on SSL_connect. Here is a trace: ldap_sasl_bind ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP winserv.test.net:636 ldap_new_socket: 3 ldap_prepare_socket: 3 ldap_connect_to_host: Trying 192.168.56.2:636 ldap_pvt_connect: fd: 3 tm: 30 async: -1 ldap_ndelay_on: 3 attempting to connect: connect errno: 115 ldap_int_poll: fd: 3 tm: 0 ldap_err2string [2024-04-25 15:41:27.112] [error] [:1] bind(): Connecting (X) [2024-04-25 15:41:27.112] [error] [:1] err: -18 ldap_sasl_bind ldap_send_initial_request ldap_int_poll: fd: 3 tm: 0 ldap_is_sock_ready: 3 ldap_ndelay_off: 3 TLS trace: SSL_connect:before SSL initialization TLS trace: SSL_connect:SSLv3/TLS write client hello Looks like it happens because non-blocking mode is cleared from the socket (ldap_ndelay_off) after the first poll for write, and non-blocking mode is never restored before attempt to do tls connect, because of the check that assumes that non-blocking mode has already been set for async mode: if ( !async ) { /* if async, this has already been set */ ber_sockbuf_ctrl( sb, LBER_SB_OPT_SET_NONBLOCK, (void*)1 ); } while in fact it was cleared. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10254] New: Allow upgrading password hash on bind
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10254 Issue ID: 10254 Summary: Allow upgrading password hash on bind Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: me(a)floriswesterman.nl Target Milestone: --- Many OpenLDAP installations are likely to contain relatively old password hashes such as SSHA and CRYPT, as modern alternatives such as Argon are only recent additions. Due to the nature of password hashes, it is of course not possible to "unhash" the old values and rehash them with a more modern algorithm. The presence of these old password hashes poses a liability in case of information leaks or hacks. Currently, the only way to upgrade a password hash is to wait for the user to change their password. This can be sped up by expiring passwords and forcing users to change them. However, this can be slow and frequent password rotation is no longer considered a best practice. It would be a very helpful addition to add support for upgrading a password hash on bind. This is implemented in the 389 directory server: https://www.port389.org/docs/389ds/design/pwupgrade-on-bind.html Essentially, when a user binds, the password is checked like normal. In case of a successful bind, the proposed feature would check the hash algorithm used for the password; and in case it is not equal to the current `olcPasswordHash` value, the user-provided password is rehashed using the new algorithm and stored. This way, the old hashes are phased out more quickly, without being a disturbance to users. -- You are receiving this mail because: You are on the CC list for the issue.

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[Bug 9186] New: RFE: More metrics in cn=monitor
by openldap-its＠openldap.org 26 Aug '25

26 Aug '25

https://bugs.openldap.org/show_bug.cgi?id=9186 Bug ID: 9186 Summary: RFE: More metrics in cn=monitor Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: michael(a)stroeder.com Target Milestone: --- Currently I'm grepping metrics from syslog with mtail: https://gitlab.com/ae-dir/ansible-ae-dir-server/-/blob/master/templates/mta… With a new binary logging this is not possible anymore. Thus it would be nice if cn=monitor provides more metrics. 1. Overall connection count per listener starting at 0 when started. This would be a simple counter added to: entries cn=Listener 0,cn=Listeners,cn=Monitor 2. Counter for the various "deferring" messages separated by the reason for deferring. 3. Counters for all possible result codes. In my mtail program I also label it with the result type. -- You are receiving this mail because: You are on the CC list for the bug.

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[Issue 10092] New: Local logging doesn't build on Windows
by openldap-its＠openldap.org 19 Aug '25

19 Aug '25

https://bugs.openldap.org/show_bug.cgi?id=10092 Issue ID: 10092 Summary: Local logging doesn't build on Windows Product: OpenLDAP Version: 2.6.6 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- slapd/logging.c uses writev() to write a prefix and the log message together in one call. This feature doesn't exist on Windows. The closest equivalent, WriteFileGather, only works on page sized and aligned writes. On Windows the only way to write as desired is to copy the message into a new buffer first. -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs September 2024