openldap-bugs June 2024

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73 discussions

[Issue 10155] New: Invalid [aka FUZZ] -F and -T options can core dump ldapsearch
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=10155 Issue ID: 10155 Summary: Invalid [aka FUZZ] -F and -T options can core dump ldapsearch Product: OpenLDAP Version: 2.6.6 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: client tools Assignee: bugs(a)openldap.org Reporter: doug.leavitt(a)oracle.com Target Milestone: --- A customer reported core dumps in ldapsearch which has been tracked to the the improper use of the -F and -T options. The customer confirmed removing the invalid -F and -T options from their script eliminated the core dumps. The CLI arguments of the failing ldapsearch look like: ldapsearch <good CLI args> -F , -T u <good filter and attr args> The good CLI args include proper uses of -H... -x -D ... -w ... -b ... -s ... The good filter and attrs are also valid CLI inputs. The "bad" args are <sp>-F<sp><COMMA><sp>-T<sp>-u<sp> The -u is also valid but it is consumed as a directory name of -T From man page and code review the the -F argument is supposed to be a valid URL. and the -T argument is supposed to be a valid directory The core file output indicates that main calls free after the search takes place. The location is believed to be here: 1658 if ( urlpre != NULL ) { 1659 if ( def_urlpre != urlpre ) 1660 free( def_urlpre ); <--------- 1661 free( urlpre ); 1662 } ... 1672 tool_exit( ld, rc ); ... This is the first example of the use of -F we have seen so it is unclear how this should be fixed. But code review of ldapsearch.c and common.c exposed a few weaknesses that could help in addressing the issue. Observed weaknesses: The getopt processing code for -T does not check that the arg is actually a directory and fail/error when bad input is provided. Perhaps at least an access(2) check should be performed? It is unclear if -F should only accept file:// URLs. The existing code does not sufficiently check any URL format instead it processes the argument by looking for the first '/' [no error checking] and determine the remainder to be a tmpdir location similar to the -T argument. So, Fuzz input of <COMMA> seems to eventually lead to the core files. It is unclear if -F and -T should be mutually exclusive or not. It seems like the fix to this issue is to add better error checking and to fail on FUZZ inputs. I defer a solution to upstream as it probably requires project direction I lack. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10232] New: assert() at shutdown if a syncrepl session is in refresh
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=10232 Issue ID: 10232 Summary: assert() at shutdown if a syncrepl session is in refresh Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- When removing the last one, syncinfo_free() checks that there is no active refresh on the backend. This works if operating on olcSyncrepl values because refresh_finished is called where appropriate. However if we're shutting down, this is skipped to make sure we don't schedule a new task and that could lead to an assert failure if there indeed was a refresh in progress (the same probably applies when removing the DB). -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9952] New: Crash on exit with OpenSSL 3
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=9952 Issue ID: 9952 Summary: Crash on exit with OpenSSL 3 Product: OpenLDAP Version: 2.6.2 Hardware: All OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: artur.zaprzala(a)gmail.com Target Milestone: --- A program using libldap will crash on exit after using SSL connection. How to reproduce on CentOS 9: Uncomment the following lines in /etc/pki/tls/openssl.cnf: [provider_sect] legacy = legacy_sect [legacy_sect] activate = 1 Run the command (you must enter a valid LDAP server address): python3 -c "import ldap; ldap.initialize('ldaps://<LDAP SERVER ADDRESS>').whoami_s()" Another example (no server required): python3 -c "import ctypes; ctypes.CDLL('libldap.so.2').ldap_pvt_tls_init_def_ctx(0)" Results: Segmentation fault (core dumped) Backtrace from gdb: Program received signal SIGSEGV, Segmentation fault. 0 ___pthread_rwlock_rdlock (rwlock=0x0) at pthread_rwlock_rdlock.c:27 1 0x00007ffff7c92f3d in CRYPTO_THREAD_read_lock (lock=<optimized out>) at crypto/threads_pthread.c:85 2 0x00007ffff7c8b126 in ossl_lib_ctx_get_data (ctx=0x7ffff7eff540 <default_context_int.lto_priv>, index=1, meth=0x7ffff7eb8a00 <provider_store_method.lto_priv>) at crypto/context.c:398 3 0x00007ffff7c98bea in get_provider_store (libctx=<optimized out>) at crypto/provider_core.c:334 4 ossl_provider_deregister_child_cb (handle=0x5555555ed620) at crypto/provider_core.c:1752 5 0x00007ffff7c8bf2f in ossl_provider_deinit_child (ctx=0x5555555d2650) at crypto/provider_child.c:279 6 OSSL_LIB_CTX_free (ctx=0x5555555d2650) at crypto/context.c:283 7 OSSL_LIB_CTX_free (ctx=0x5555555d2650) at crypto/context.c:276 8 0x00007ffff7634af6 in legacy_teardown (provctx=0x5555555ee9f0) at providers/legacyprov.c:168 9 0x00007ffff7c9901b in ossl_provider_teardown (prov=0x5555555ed620) at crypto/provider_core.c:1477 10 ossl_provider_free (prov=0x5555555ed620) at crypto/provider_core.c:683 11 0x00007ffff7c63956 in ossl_provider_free (prov=<optimized out>) at crypto/provider_core.c:668 12 evp_cipher_free_int (cipher=0x555555916c10) at crypto/evp/evp_enc.c:1632 13 EVP_CIPHER_free (cipher=0x555555916c10) at crypto/evp/evp_enc.c:1647 14 0x00007ffff7a6bc1d in ssl_evp_cipher_free (cipher=0x555555916c10) at ssl/ssl_lib.c:5925 15 ssl_evp_cipher_free (cipher=0x555555916c10) at ssl/ssl_lib.c:5915 16 SSL_CTX_free (a=0x555555ec1020) at ssl/ssl_lib.c:3455 17 SSL_CTX_free (a=0x555555ec1020) at ssl/ssl_lib.c:3392 18 0x00007fffe95edb89 in ldap_int_tls_destroy (lo=0x7fffe9616000 <ldap_int_global_options>) at /usr/src/debug/openldap-2.6.2-1.el9_0.x86_64/openldap-2.6.2/libraries/libldap/tls2.c:104 19 0x00007ffff7fd100b in _dl_fini () at dl-fini.c:138 20 0x00007ffff7873475 in __run_exit_handlers (status=0, listp=0x7ffff7a11658 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:113 21 0x00007ffff78735f0 in __GI_exit (status=<optimized out>) at exit.c:143 22 0x00007ffff785be57 in __libc_start_call_main (main=main@entry=0x55555556aa20 <main>, argc=argc@entry=4, argv=argv@entry=0x7fffffffe2b8) at ../sysdeps/nptl/libc_start_call_main.h:74 23 0x00007ffff785befc in __libc_start_main_impl (main=0x55555556aa20 <main>, argc=4, argv=0x7fffffffe2b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe2a8) at ../csu/libc-start.c:409 24 0x000055555556b575 in _start () The problem is that ldap_int_tls_destroy() is called after the clean up of libssl. On program exit, at first default_context_int is cleaned up (OPENSSL_cleanup() was registered with atexit()): 0 ossl_lib_ctx_default_deinit () at crypto/context.c:196 1 OPENSSL_cleanup () at crypto/init.c:424 2 OPENSSL_cleanup () at crypto/init.c:338 3 0x00007ffff7873475 in __run_exit_handlers (status=0, listp=0x7ffff7a11658 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:113 4 0x00007ffff78735f0 in __GI_exit (status=<optimized out>) at exit.c:143 5 0x00007ffff785be57 in __libc_start_call_main (main=main@entry=0x55555556aa20 <main>, argc=argc@entry=4, argv=argv@entry=0x7fffffffe2c8) at ../sysdeps/nptl/libc_start_call_main.h:74 6 0x00007ffff785befc in __libc_start_main_impl (main=0x55555556aa20 <main>, argc=4, argv=0x7fffffffe2c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe2b8) at ../csu/libc-start.c:409 7 0x000055555556b575 in _start () Then ossl_lib_ctx_get_data() tries to use default_context_int.lock, which is NULL. ldap_int_tls_destroy() is called by ldap_int_destroy_global_options(), registered by "__attribute__ ((destructor))". It seems that shared library destructors are always called before functions registered with atexit(). A solution may be to modify libraries/libldap/init.c to use atexit() instead of "__attribute__ ((destructor))". atexit() manual page says: "Since glibc 2.2.3, atexit() can be used within a shared library to establish functions that are called when the shared library is unloaded.". Functions registered with atexit() are called in the reverse order of their registration, so libssl must by initialized before libldap. If the order is wrong, libldap should detect it somehow and exit with abort(). -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9827] New: Feature request for module argon2.so to support Argon2i, Argon2d, Argon2id
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=9827 Issue ID: 9827 Summary: Feature request for module argon2.so to support Argon2i, Argon2d, Argon2id Product: OpenLDAP Version: 2.6.1 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: juergen.sprenger(a)swisscom.com Target Milestone: --- Hi, This is a feature request. I would like to be able to chooses between Argon2i, Argon2d and Argon2id in slappasswd like in argon2 command: # argon2 Usage: argon2 [-h] salt [-i|-d|-id] [-t iterations] [-m log2(memory in KiB) | -k memory in KiB] [-p parallelism] [-l hash length] [-e|-r] [-v (10|13)] Password is read from stdin Parameters: salt The salt to use, at least 8 characters -i Use Argon2i (this is the default) -d Use Argon2d instead of Argon2i -id Use Argon2id instead of Argon2i -t N Sets the number of iterations to N (default = 3) -m N Sets the memory usage of 2^N KiB (default 12) -k N Sets the memory usage of N KiB (default 4096) -p N Sets parallelism to N threads (default 1) -l N Sets hash output length to N bytes (default 32) -e Output only encoded hash -r Output only the raw bytes of the hash -v (10|13) Argon2 version (defaults to the most recent version, currently 13) -h Print argon2 usage Example: /usr/local/etc/openldap # /usr/sbin/slappasswd -h "{ARGON2}" -o module-load="argon2.so i" -s secret /usr/local/etc/openldap # /usr/sbin/slappasswd -h "{ARGON2}" -o module-load="argon2.so d" -s secret /usr/local/etc/openldap # /usr/sbin/slappasswd -h "{ARGON2}" -o module-load="argon2.so id" -s secret Best regards Juergen Sprenger -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10135] New: dynlist (and maybe others) doesn't use the right overinst context in callbacks
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=10135 Issue ID: 10135 Summary: dynlist (and maybe others) doesn't use the right overinst context in callbacks 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: --- Running the test suite with `-fsanitize=address` picks up a bug in https://git.openldap.org/openldap/openldap/-/blob/860b61f41dfeeb19cc0eb011f… Here, op->o_bd->bd_info isn't actually dynlist but mdb's own static bi, so overlay_entry_get_ov then reaches into the void when reading on->on_info. It's very likely that other places/overlays share the same bug as it is subtle and doesn't get picked up immediately (slap_overinst embeds a BackendInfo and oi_orig is not often set). -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10191] New: backend searches should respond to pause requests
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=10191 Issue ID: 10191 Summary: backend searches should respond to pause requests Product: OpenLDAP Version: 2.6.7 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- A long running search will cause mods to cn=config to wait a long time. Search ops should periodically check for threadpool pause requests. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10071] New: Extra sids in cookie should only be ignored for replay consideration
by openldap-its＠openldap.org 26 Nov '24

26 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=10071 Issue ID: 10071 Summary: Extra sids in cookie should only be ignored for replay consideration Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- A consumer's cookie might contain sids that the provider is not aware of. Those are currently screened out. This is appropriate for initial checks whether/how to allow the operation to go ahead but might be needed for content determination in refresh/persist. As such the cookie should be retained rather than edited in place. I don't have the logs from a failed test at hand but will post the analysis/logs if I find them again. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10106] New: Add organization to web list of OpenLDAP support providers
by openldap-its＠openldap.org 12 Nov '24

12 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=10106 Issue ID: 10106 Summary: Add organization to web list of OpenLDAP support providers Product: website Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: website Assignee: bugs(a)openldap.org Reporter: sudo(a)migrateq.io Target Milestone: --- Hello! This request is being opened as suggested by Quanah Gibson-Mount. Could you please add Migrateq to your OpenLDAP Support page on https://openldap.org/support Company: Migrateq Inc. Website: https://migrateq.io/support/tech/openldap Migrateq provides migrations, integrations and advanced 24/7/365 technical support for OpenLDAP and most Linux and Open Source Software. Thank you =) Richard -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10141] New: 100% CPU consumption with ldap_int_tls_connect
by openldap-its＠openldap.org 12 Nov '24

12 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=10141 Issue ID: 10141 Summary: 100% CPU consumption with ldap_int_tls_connect Product: OpenLDAP Version: 2.6.3 Hardware: Other OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: vivekanand754(a)gmail.com Target Milestone: --- While doing secure ldap connection, i'm seeing that connection is getting stuck in read block in case it is unable to connect active directory sometime: ~ # strace -p 15049 strace: Process 15049 attached read(3, 0x55ef720bda53, 5) = -1 EAGAIN (Resource temporarily unavailable) read(3, 0x55ef720bda53, 5) = -1 EAGAIN (Resource temporarily unavailable) .. .. .. .. After putting some logs, I can see that "ldap_int_tls_start" function of "openldap-2.6.3/libraries/libldap/tls2.c" calls "ldap_int_tls_connect" in while loop. It seems to be blocking call, as it try to connect continuously until it get connected(ti_session_connect returns 0) and thus consumes 100% CPU during that time. Is there any known issue ? -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9393] New: Provider a LDAP filter validation function
by openldap-its＠openldap.org 12 Nov '24

12 Nov '24

https://bugs.openldap.org/show_bug.cgi?id=9393 Issue ID: 9393 Summary: Provider a LDAP filter validation function Product: OpenLDAP Version: 2.4.56 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: best(a)univention.de Target Milestone: --- In many situations I need to validate if a user submitted LDAP filter has valid syntax. It seems there is no official function to check this. Could you provide one? libraries/libldap/filter.c: ldap_pvt_put_filter() can be used as a basis. -- My current workaround is using a unconnected ldap connection and do a search with that filter. This yields a FILTER_ERROR (invalid filter) or a SERVER_DOWN error (invalid filter). See also: https://github.com/python-ldap/python-ldap/pull/272 -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs June 2024