openldap-bugs January 2024

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[Issue 7249] slapd segfault with memberof overlay on frontend db
by openldap-its＠openldap.org 31 Jan '24

31 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=7249 --- Comment #18 from Ondřej Kuzník <ondra(a)mistotebe.net> --- Looking at the Arch patch, might be related to ITS#10135? -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 6509] slapo-memberof follow cascading group membership
by openldap-its＠openldap.org 31 Jan '24

31 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=6509 Ondřej Kuzník <ondra(a)mistotebe.net> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://bugs.openldap.org/s | |how_bug.cgi?id=10161 -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10014] New: TLS handle using MbedTLS
by openldap-its＠openldap.org 30 Jan '24

30 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=10014 Issue ID: 10014 Summary: TLS handle using MbedTLS Product: OpenLDAP Version: 2.6.4 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: contrib Assignee: bugs(a)openldap.org Reporter: johan.pascal(a)linphone.org Target Milestone: --- Created attachment 950 --> https://bugs.openldap.org/attachment.cgi?id=950&action=edit Add a TLS handle using MbedTLS Hi, I wrote a TLS handle based on MbedTLS. I attach the patch here but I can also put in on gitlab and make a merge request there. The patch contains the minimal modifications to build openldap using MbedTLS as backend for TLS. You must run aclocal, autoheader amd autoconf to regenerate the archived aclocal.m4, configure and include/portable.hin files. This contribution was originally written for the linphone project, and copyright belongs to Belledonne Communications SARL. The attached file is derived from OpenLDAP Software. All of the modifications to OpenLDAP Software represented in the following patch were developed by Belledonne Communications SARL. Belledonne Communications SARL has not assigned rights and/or interest in this work to any party. I, Johan Pascal am authorized by Belledonne Communications, my employer, to release this work under the following terms. The attached modifications to OpenLDAP Software are subject to the following notice: Copyright 2010-2023 Belledonne Communications SARL Redistribution and use in source and binary forms, with or without modification, are permitted only as authorized by the OpenLDAP Public License. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10142] New: lloadd's cn=config startup is broken
by openldap-its＠openldap.org 29 Jan '24

29 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=10142 Issue ID: 10142 Summary: lloadd's cn=config startup is broken Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: lloadd Assignee: ondra(a)mistotebe.net Reporter: ondra(a)mistotebe.net Target Milestone: --- During startup, tiers aren't being linked into the `tiers` linked list. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10143] New: only use logfile in server mode
by openldap-its＠openldap.org 29 Jan '24

29 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=10143 Issue ID: 10143 Summary: only use logfile in server mode 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: --- Only slapd should be using the logfile, not the slap* tools. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10080] New: refreshAndPersist synchronization problem with glue + rwm
by openldap-its＠openldap.org 29 Jan '24

29 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=10080 Issue ID: 10080 Summary: refreshAndPersist synchronization problem with glue + rwm Product: OpenLDAP Version: 2.6.2 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: homma(a)allworks.co.jp Target Milestone: --- Created attachment 972 --> https://bugs.openldap.org/attachment.cgi?id=972&action=edit Stack trace of segfault I have an openldap 2.6.2 server "ldap1" with the following DIT: dc=example,dc=com (back-mdb) ou=users ou=local cn=admin cn=sync ... ou=remote (back-ldap -> ldaps://dc1.example.com) ... Local user entries are created under subtree "ou=local,ou=users,dc=example,dc=com", and the subtree "ou=remote,ou=users,dc=example,dc=com" is a proxy to an Active Directory server "dc1.example.com" (subtree "ou=users,dc=ad,dc=example,dc=com"). The concrete configuration is as follows: ---------------- dn: olcDatabase={2}ldap,cn=config objectClass: olcDatabaseConfig objectClass: olcLDAPConfig olcDatabase: {2}ldap olcSuffix: ou=remote,ou=users,dc=example,dc=com olcSubordinate: TRUE olcRootDN: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth olcDbURI: ldaps://dc1.example.com olcDbIDAssertBind: bindmethod=simple binddn="cn=aduser,ou=users,dc=ad,dc=example,dc=com" credentials=secret tls_reqcert=demand mode=none olcDbIDAssertAuthzFrom: {0}dn.exact:gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth olcDbIDAssertAuthzFrom: {1}dn.exact:cn=admin,ou=local,ou=users,dc=example,dc=com dn: olcOverlay={0}rwm,olcDatabase={2}ldap,cn=config objectClass: olcOverlayConfig objectClass: olcRwmConfig olcOverlay: {0}rwm olcRwmRewrite: {0}rwm-suffixmassage "ou=users,dc=ad,dc=example,dc=com" olcRwmMap: {0}objectclass inetOrgPerson organizationalPerson olcRwmMap: {1}objectclass posixAccount user olcRwmMap: {2}attribute uid sAMAccountName olcRwmMap: {3}attribute homeDirectory unixHomeDirectory olcRwmMap: {4}attribute ou * olcRwmMap: {5}attribute cn * olcRwmMap: {6}attribute sn * olcRwmMap: {7}attribute givenName * olcRwmMap: {8}attribute mail * olcRwmMap: {9}attribute uidNumber * olcRwmMap: {10}attribute gidNumber * olcRwmMap: {11}attribute * dn: olcDatabase={3}mdb,cn=config objectClass: olcDatabaseConfig objectClass: olcMdbConfig olcDatabase: {3}mdb olcDbDirectory: /var/lib/ldap olcSuffix: dc=example,dc=com olcRootDN: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth olcAccess: {0}to * by dn.exact="cn=admin,ou=local,ou=users,dc=example,dc=com" write by dn.exact="cn=sync,ou=local,ou=users,dc=example,dc=com" write by * break olcAccess: {1}to attrs=userPassword by anonymous auth by self write by * none olcAccess: {2}to * by * read olcDbIndex: objectClass eq,pres olcDbIndex: ou,cn,mail,surname,givenname eq,pres,sub ---------------- So far, so good. A subtree search on "ou=users,dc=example,dc=com" returns both local and remote users. But when I create the second server "ldap2" with similar configuration and configure refreshAndPersist replication, I run into a problem. (1) When I configure on "ldap1" server, ---------------- dn: olcOverlay={0}syncprov,olcDatabase={3}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcSyncProvConfig olcOverlay: {0}syncprov ---------------- and on "ldap2" server, ---------------- dn: olcDatabase={3}mdb,cn=config changeType: modify replace: olcSyncrepl olcSyncrepl: {0}rid=301 provider="ldap://ldap1/" bindmethod=simple binddn="cn=sync,ou=local,ou=users,dc=example,dc=com" credentials=secret searchbase="dc=example,dc=com" type=refreshAndPersist retry="5 12 60 +" timeout=1 ---------------- the initial refresh stage fails. (a) Whith the above configuration, the refresh failes with "(48) Inappropriate authentication", because the bind DN "cn=sync,ou=local,ou=users,dc=example,dc=com" does not have access to the subordinate database. (b) When I add "cn=sync,ou=local,ou=users,dc=example,dc=com" to the ID assertion list on "ldap1" server, ---------------- dn: olcDatabase={2}ldap,cn=config changeType: modify add: olcDbIDAssertAuthzFrom olcDbIDAssertAuthzFrom: {2}dn.exact:cn=sync,ou=local,ou=users,dc=example,dc=com ---------------- the refresh fails with "(12) Critical extension is unavailable", because Active Directory does not support Sync Request Control. (c) Even if the remote server supports Sync Request Control, the refresh fails with the message "server sent multiple refreshDone messages? Ending session". The refreshDone messages are sent twice, one for the sperior databese and the other for the subordinate database. (d) If I delete olcSubordinate attribute and restart slapd on "ldap1" server, ---------------- dn: olcDatabase={2}ldap,cn=config changeType: modify delete: olcSubordinate ---------------- then the refresh stage completes successfully. Once the persistent session is established, I can add olcSubordinate attribute again. ---------------- dn: olcDatabase={2}ldap,cn=config changeType: modify add: olcSubordinate olcSubordinate: TRUE ---------------- When I modify entries in the subordinate database on "ldap1" server, no change notification is sent to "ldap2" server. This is the desired behavior, but if I restart slapd on "ldap1" server, the refresh starts failing again. (2) When I configure the glue overlay explicitly before the syncprov overlay, as described in "man slapd-config", ---------------- dn: olcOverlay={0}glue,olcDatabase={3}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcConfig olcOverlay: {0}glue dn: olcOverlay={1}syncprov,olcDatabase={3}mdb,cn=config objectClass: olcOverlayConfig objectClass: olcSyncProvConfig olcOverlay: {1}syncprov ---------------- the refresh stage completes successfully without attempting to search the subordinate database. This is fine because I do not need to synchronize the subordinate database between "ldap1" and "ldap2" servers. However, when I modify an entry in the subordinate database on "ldap1" server, slapd crashes by segmentation fault. See the attached file for stack trace. After some research, I found that the cause of the crash is as follows: In syncprov_matchops(), it attempts to get the modified entry with DN = op->o_req_ndn. But since op->o_req_ndn has been rewritten in the rmw overlay, glue_back_select() incorrectly selects the mdb backend, which should be the ldap backend. At this point, op->o_bd->be_private holds a value of type ldapinfo_t, but mdb_entry_get() tries to interpret it as type struct mdb_info, causing a segfault. In summary, the problem is: When I configure refreshAndPersist synchronization for a database with a subordinate ldap backend using DN rewriting, (1) The subordinate database cannot be excluded from both refresh and persistent stage of the synchronization: When the glue overlay is not explicitly configured: - In the refresh stage, the subordinate database is included in the search. - In the persist stage, the subordinate database is excluded from the synchronization. When the glue overlay is explicitly configured before the syncprov overlay: - In the refresh stage, the subordinate database is excluded from the search. - In the persist stage, the subordinate database is included in the synchronization. This seems to be inconsistent. (2) If the subordinate database is included in the refresh stage, the refresh fails for one of the following reasons: - the syncrepl user is not allowed to access the subordinate database - the remote server does not support Sync Request Control - multiple refreshDone messages are returned The refresh stage completes successfully if olcSubordinate attribute is deleted from the subordinate database. olcSubordinate attribute can be added again once the persistent session is established, but the refresh stage starts failing again if slapd is restarted. (3) If the subordinate database is included in the persist stage, modifying entries in the subordinate database causes slapd to crash. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10098] New: contrib modules don't build on Windows
by openldap-its＠openldap.org 29 Jan '24

29 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=10098 Issue ID: 10098 Summary: contrib modules don't build on Windows Product: OpenLDAP Version: 2.6.6 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: build Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- Need a couple tweaks to the Makefiles. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10092] New: Local logging doesn't build on Windows
by openldap-its＠openldap.org 29 Jan '24

29 Jan '24

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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[Issue 10130] New: Several callers of getpassphrase() ignore NULL returns
by openldap-its＠openldap.org 29 Jan '24

29 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=10130 Issue ID: 10130 Summary: Several callers of getpassphrase() ignore NULL returns 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: stacey.marshall(a)gmail.com Target Milestone: --- getpassphrase(3c) and lutil_getpass() can return NULL to signify EOF, and in the case of the former for an interrupt or an error. Several callers fail to check for NULL before calling other functions which may then cause other issues such as segmentation fault. A patch in progress treats NULL as EOF and provides an early exit. ``` $ git status --short -uno M clients/tools/common.c M clients/tools/ldappasswd.c M clients/tools/ldapvc.c M servers/slapd/slappasswd.c M tests/progs/slapd-tester.c ``` -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10129] New: lloadd.conf(5) manpage incorrect
by openldap-its＠openldap.org 29 Jan '24

29 Jan '24

https://bugs.openldap.org/show_bug.cgi?id=10129 Issue ID: 10129 Summary: lloadd.conf(5) manpage incorrect Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- keepalive, tcp-user-timeout and tls_* are available in the bindconf section but the manpage errorneously lists them as configurable on backend-server. -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs January 2024