August 2023 - openldap-bugs

[Issue 9717] New: The RADIUSOV overlay can be incorporated into OpenLDAP

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9717 Issue ID: 9717 Summary: The RADIUSOV overlay can be incorporated into OpenLDAP Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: contrib Assignee: bugs(a)openldap.org Reporter: rdubner(a)symas.com Target Milestone: --- -- You are receiving this mail because: You are on the CC list for the issue.

10 hours, 44 minutes

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[Issue 10080] New: refreshAndPersist synchronization problem with glue + rwm

by openldap-its＠openldap.org

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.

6 days, 12 hours

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[Issue 9378] New: Crash in mdb_put() / mdb_page_dirty()

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9378 Issue ID: 9378 Summary: Crash in mdb_put() / mdb_page_dirty() Product: LMDB Version: 0.9.26 Hardware: All OS: Linux Status: UNCONFIRMED Severity: normal Priority: --- Component: liblmdb Assignee: bugs(a)openldap.org Reporter: nate(a)kde.org Target Milestone: --- The KDE Baloo file indexer uses lmdb as its database (source code available at https://invent.kde.org/frameworks/baloo). Our most common crash, with over 100 duplicate bug reports, is in lmdb. Here's the bug report tracking it: https://bugs.kde.org/show_bug.cgi?id=389848. The version of lmdb does not seem to matter much. We have bug reports from Arch users with lmdb 0.9.26 as well as bug reports from people using many earlier versions. Here's an example backtrace, taken from https://bugs.kde.org/show_bug.cgi?id=426195: #6 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 #7 0x00007f3c0bbb9859 in __GI_abort () at abort.c:79 #8 0x00007f3c0b23ba83 in mdb_assert_fail (env=0x55e2ad710600, expr_txt=expr_txt@entry=0x7f3c0b23e02f "rc == 0", func=func@entry=0x7f3c0b23e978 <__func__.7221> "mdb_page_dirty", line=line@entry=2127, file=0x7f3c0b23e010 "mdb.c") at mdb.c:1542 #9 0x00007f3c0b2306d5 in mdb_page_dirty (mp=<optimized out>, txn=0x55e2ad7109f0) at mdb.c:2114 #10 mdb_page_dirty (txn=0x55e2ad7109f0, mp=<optimized out>) at mdb.c:2114 #11 0x00007f3c0b231966 in mdb_page_alloc (num=num@entry=1, mp=mp@entry=0x7f3c0727aee8, mc=<optimized out>) at mdb.c:2308 #12 0x00007f3c0b231ba3 in mdb_page_touch (mc=mc@entry=0x7f3c0727b420) at mdb.c:2495 #13 0x00007f3c0b2337c7 in mdb_cursor_touch (mc=mc@entry=0x7f3c0727b420) at mdb.c:6523 #14 0x00007f3c0b2368f9 in mdb_cursor_put (mc=mc@entry=0x7f3c0727b420, key=key@entry=0x7f3c0727b810, data=data@entry=0x7f3c0727b820, flags=flags@entry=0) at mdb.c:6657 #15 0x00007f3c0b23976b in mdb_put (txn=0x55e2ad7109f0, dbi=5, key=key@entry=0x7f3c0727b810, data=data@entry=0x7f3c0727b820, flags=flags@entry=0) at mdb.c:9022 #16 0x00007f3c0c7124c5 in Baloo::DocumentDB::put (this=this@entry=0x7f3c0727b960, docId=<optimized out>, docId@entry=27041423333263366, list=...) at ./src/engine/documentdb.cpp:79 #17 0x00007f3c0c743da7 in Baloo::WriteTransaction::replaceDocument (this=0x55e2ad7ea340, doc=..., operations=operations@entry=...) at ./src/engine/writetransaction.cpp:232 #18 0x00007f3c0c736b16 in Baloo::Transaction::replaceDocument (this=this@entry=0x7f3c0727bc10, doc=..., operations=operations@entry=...) at ./src/engine/transaction.cpp:295 #19 0x000055e2ac5d6cbc in Baloo::UnindexedFileIndexer::run (this=0x55e2ad79ca20) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:60 #20 0x00007f3c0c177f82 in QThreadPoolThread::run (this=0x55e2ad717f20) at thread/qthreadpool.cpp:99 #21 0x00007f3c0c1749d2 in QThreadPrivate::start (arg=0x55e2ad717f20) at thread/qthread_unix.cpp:361 #22 0x00007f3c0b29d609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #23 0x00007f3c0bcb6103 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 -- You are receiving this mail because: You are on the CC list for the issue.

1 week

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[Issue 9719] New: refreshOnly sends empty cookie when client up to date

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9719 Issue ID: 9719 Summary: refreshOnly sends empty cookie when client up to date Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- Syncprov will send an empty cookie if the consumer has the same cookie as provider. To the best of my knowledge this is not in line with RFC4533 and consumers would effectively drop their cookie when the search finishes. -- You are receiving this mail because: You are on the CC list for the issue.

1 week, 5 days

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[Issue 9795] New: Remove memberof overlay

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9795 Issue ID: 9795 Summary: Remove memberof overlay Product: OpenLDAP Version: 2.6.1 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: --- The memberof overlay was deprecated with the release of OpenLDAP 2.5. It should be removed prior for the next minor release (i.e., 2.7) -- You are receiving this mail because: You are on the CC list for the issue.

2 weeks

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[Issue 10065] New: slapd needs a config option for the ssf of an external security proxy using "proxy protocol v2"

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=10065 Issue ID: 10065 Summary: slapd needs a config option for the ssf of an external security proxy using "proxy protocol v2" Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: sean(a)teletech.com.au Target Milestone: --- Commit 146889f introduced support for the haproxy "proxy protocol v2". A very welcome addition that allows an external security layer to be implemented. This implementation is however somewhat hobbled. Cyrus SASL uses "Security Strength Factors" or "ssf" to determine what Authentication mechanisms to offer. slapd conveys the implicit security of UNIX domain sockets to the SASL layer by specifying a non-zero ssf for these connections. This can be configured with the "olcLocalSSF" config setting. For implicit/explicit TLS connections, the "olcSecurity: tls=<n>" provides the cryptographic strength of the TLS layer to the SASL layer. For an external TLS-terminating proxy, there does not appear to be any way to inform Cyrus SASL of the presence of TLS security on these proxied connections. The outcome of this is that PLAIN and EXTERNAL authentication mechanisms are not offered to clients connecting through the secure proxy. This can be overcome by weakening the security properties of the SASL layer with the olcSaslSecProps configuration option, but this weakening will apply to all clients, not just clients connecting via the secure proxy. What is required is some way to tell slapd and it's integrated SASL layer about the presence of TLS encryption on the proxy's input. As a precaution, this might be restricted to slapd connections in the 127.0.0.0/8 [IPv6:::] address ranges. -- You are receiving this mail because: You are on the CC list for the issue.

2 weeks

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[Issue 9982] New: Linker error when building with LDAP_CONNECTIONLESS

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9982 Issue ID: 9982 Summary: Linker error when building with LDAP_CONNECTIONLESS Product: OpenLDAP Version: 2.6.3 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: build Assignee: bugs(a)openldap.org Reporter: invokesus+openldap(a)gmail.com Target Milestone: --- Created attachment 942 --> https://bugs.openldap.org/attachment.cgi?id=942&action=edit Build log I'm encountering the following linker error when building from the master branch, with LDAP_CONNECTIONLESS defined. /nix/store/jbnmj9fljgnfyc1iswnrpfhlkpnnwiii-binutils-2.39/bin/ld: ./.libs/libldap.so: undefined reference to `ber_sockbuf_io_udp' Seems to have been happening since https://git.openldap.org/openldap/openldap/-/commit/4a87d7aad200aaa91cb0c.... Attaching the full build log. Also, attaching in the next update, a patch to fix the error. -- You are receiving this mail because: You are on the CC list for the issue.

2 weeks

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[Issue 9786] New: liblber: missing export of ber_pvt_wsa_err2string

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9786 Issue ID: 9786 Summary: liblber: missing export of ber_pvt_wsa_err2string Product: OpenLDAP Version: 2.6.1 Hardware: All OS: Windows Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: tobias.junghans(a)veyon.io Target Milestone: --- When building (cross-compiling) OpenLDAP via GCC/mingw-w64, an undefined reference to ber_pvt_wsa_err2string() is reported when libldap.dll is linked. This can be fixed easily by adding ber_pvt_wsa_err2string() to libraries/liblber/lber.map -- You are receiving this mail because: You are on the CC list for the issue.

2 weeks

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[Issue 9902] New: Make max index DBs for back-mdb configurable

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9902 Issue ID: 9902 Summary: Make max index DBs for back-mdb configurable Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- From ITS#9895: Currently there is a hardcoded limit of 128 index DBs in back-mdb. Some sites want more than this (although there's no evidence they actually use more than 128 attributes in all of their applications' search filters). For 2.5/2.6 we can simply double the constant. For 2.7 consider making it configurable. Note that increasing the number increases the size of an LMDB transaction structure, and also increases the time needed to initialize it whenever creating a transaction, so it's a bad idea to just set this to an arbitrarily large number. -- You are receiving this mail because: You are on the CC list for the issue.

2 weeks

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[Issue 9881] New: Ability to track last authentication for database objects

by openldap-its＠openldap.org

https://bugs.openldap.org/show_bug.cgi?id=9881 Issue ID: 9881 Summary: Ability to track last authentication for database objects Product: OpenLDAP Version: unspecified 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: --- For simple binds, we have the ability to track the last success via the lastbind functionality (pwdLastSuccess attribute). However this doesn't allow one to see when an object that exists in a database last authenticated via SASL. It would be useful to add similar functionality for SASL binds. This can be useful information that allows one to tell if an object is being actively authenticated to (generally, users and system accounts, etc). Obviously if something is directly mapped to an identity that doesn't exist in the underlying DB, that cannot be tracked. -- You are receiving this mail because: You are on the CC list for the issue.

2 weeks

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openldap-bugs August 2023