https://bugs.openldap.org/show_bug.cgi?id=10216
Issue ID: 10216
Summary: Channel binding enforced on AD with AD cert using
EDCSA-SHA384 fails
Product: OpenLDAP
Version: 2.6.7
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: libraries
Assignee: bugs(a)openldap.org
Reporter: simon.pichugin(a)gmail.com
Target Milestone: ---
Secure LDAP connections to the target Windows server 2019 DC began failing
after the Windows Server DC certificate was updated to an Elliptic Curve Public
Key (384 bits) with the sha384ECDSA signature algorithm and sha384 signature
hash algorithm specified. Â
The connections were previously successful when the Windows server DC
certificate specified an RSA Public Key certificate with signature algorithm
sha256RSA and signature hash algorithm sha256 specified. Â
Once the Windows server domain controller certificate is upgraded to the ECC
public key, subsequent secure ldap connection attempts fail.
If channel binding is turned off on the Windows AD target server, secure ldap
connections will succeed using starttls.
If Windows server domain controller certificate is upgraded to ECC public key
and ldap channel binding is enforced, subsequent secure ldap connection
attempts fail with this error message:
ldap_sasl_interactive_bind_s: Invalid credentials (49)
    additional info: 80090346: LdapErr: DSID-0C09070F, comment:
AcceptSecurityContext error, data 80090346, v4563
Expected results:
Kerberos SASL should work with STARTTLS even when AD certificate is ECC and
SASL_CBINDING is set to "tls-endpoint"
Actual results:
Kerberos SASL only works with STARTTLS even when AD certificate is RSA and
SASL_CBINDING is set to "tls-endpoint"; it fails when AD certificate is ECC
Additional information:
According to the OpenSSL maintainer, there might be a bug in the OpenLDAP code:
it uses EVP_get_digestbynid() to find a digest algorithm based on the signature
algorithm, but there might be no such mapping in EC compared to the RSA case.
OpenLDAP needs to use OBJ_find_sigid_algs() to find the right algorithm.
Possibly, this is the failing code:
https://git.openldap.org/openldap/openldap/-/blob/master/libraries/libldap/…
Instead of X509_get_signature_nid() OpenLDAP code probably should call
something like OBJ_find_sigid_algs(X509_get_signature_nid(cert), &md_nid,
&pk_nid).
The former only supports mapping for a few known signature algorithms, but
everything did work, most likely due to a fallback to sha256 in case the digest
wasn't really found.
Judging by https://github.com/openssl/openssl/issues/14278 and
https://github.com/openssl/openssl/issues/14467, a better API is coming but not
currently available (and as it was in the state for a few years, it probably
won't be coming soon)
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https://bugs.openldap.org/show_bug.cgi?id=10212
Issue ID: 10212
Summary: read-only tools may use wrong meta page
Product: LMDB
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: hyc(a)openldap.org
Target Milestone: ---
On a quiescent database that's only used for read-only txns, the txnid won't be
initialized so it remains set to zero. Then only meta page zero will get used,
even if page one is newer. Thus all information retrieved will be stale by one
txn.
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https://bugs.openldap.org/show_bug.cgi?id=9921
Issue ID: 9921
Summary: Tautology in clients/tools/common.c:print_vlv()
Product: OpenLDAP
Version: 2.6.3
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: client tools
Assignee: bugs(a)openldap.org
Reporter: dpa-openldap(a)aegee.org
Target Milestone: ---
https://git.openldap.org/openldap/openldap/-/blob/master/clients/tools/comm…
contains:
tool_write_ldif( ldif ? LDIF_PUT_COMMENT : LDIF_PUT_VALUE,
ldif ? "vlvResult" : "vlvResult", buf, rc );
The second parameter is always vlvResult, irrespective of the value of ldif.
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https://bugs.openldap.org/show_bug.cgi?id=10215
Issue ID: 10215
Summary: [QUESTION] FIPS Validated password hashing
Product: OpenLDAP
Version: 2.4.54
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: libraries
Assignee: bugs(a)openldap.org
Reporter: 11tete11(a)gmail.com
Target Milestone: ---
Hi! we are in process of a certification, and we are using openldap of ubuntu
pro fips 20.04, that its the 2.4.54
At some point the auditor ask us, how the passwords are stored into ldap, and
we found this:
https://github.com/openldap/openldap/tree/master/contrib/slapd-modules/pass…
seems that that module do not use a FIPS validated library like "openssl" that
comes with ubuntu fips. and make it's own implementation of the sha512.
Is there any ldap module that uses the openssl library of the SO that in this
case its the openssl 1.1.1f to hash its passwords?, could be this
https://github.com/openldap/openldap/tree/master/contrib/slapd-modules/pass…
maybe if i'm understanding right?
thx!
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https://bugs.openldap.org/show_bug.cgi?id=10198
Issue ID: 10198
Summary: Crash in mdb_strerr on Windows
Product: LMDB
Version: unspecified
Hardware: All
OS: Windows
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: b.koch(a)beckhoff.com
Target Milestone: ---
The call to FormatMessageA in mdb_strerr crashes on Windows 10 for error code
112 (disk full).
Its "Arguments" parameter is an invalid pointer. The documentation says that
the parameter should be ignored because of FORMAT_MESSAGE_IGNORE_INSERTS but my
copy of Windows disagrees. Documentation for FormatMessageA:
https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-form…
The error is (with addresses replaced by <...>):
Exception thrown at <RtlFormatMessageEx> (ntdll.dll) in
ConsoleApplication1.exe: 0xC0000005: Access violation reading location
<buf+8*1024>.
Trivial fix: Change the last parameter to NULL (in this call:
https://github.com/LMDB/lmdb/blob/8645e92b937794c06f0c66dfae64e425a085b6cd/…)
Bug 8361 is raising some additional issues in this code and it implies that the
va_list is somehow related to the padding hack (but I don't understand how that
is, to be honest), so I'm not sure whether the trivial fix would be fine.
Here is some code to reproduce the crash outside of liblmdb (tested with Visual
Studio 2022, x86 and x64, C++ console project):
#include <iostream>
#include <windows.h>
int main()
{
std::cout << "Hello World!\n";
char buf[1024];
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, 112, 0, buf, sizeof(buf), (va_list*)buf + 1024);
char* msg = buf;
std::cout << msg;
}
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https://bugs.openldap.org/show_bug.cgi?id=10210
Issue ID: 10210
Summary: ldapurl manpage references options that no longer
exist
Product: OpenLDAP
Version: 2.6.7
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: ---
-h ldaphost
Set the host.
-p ldapport
Set the TCP port.
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https://bugs.openldap.org/show_bug.cgi?id=10195
Issue ID: 10195
Summary: permissive modify control without value
Product: OpenLDAP
Version: 2.6.7
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: lesignor(a)cirad.fr
Target Milestone: ---
Hello,
A windows ldap client (dotnet) format the request with oid permissive modify
control like this :
00d0 30 84 00 00 00 1e 04 17 ........0.......
00e0 31 2e 32 2e 38 34 30 2e 31 31 33 35 35 36 2e 31 1.2.840.113556.1
00f0 2e 34 2e 31 34 31 33 01 01 ff 04 00 .4.1413.....
The last 2 bytes 04 00 seems to indicate no value (length of value = 0 ?).
With openldap 2.4.x this request was accepted.
With openldap 2.5.x or openldap 2.6.x, this request is rejected for invalid
protocol with error message : permissiveModify control value not absent
With ldapmodify from openldap, the same request is formatted without the last 2
bytes and is accepted.
Could it be possible to accept request with control without value formatted
with 04 00 to indicate no value ?
It will help to migrate from openldap 2.4.x to 2.5.x or 2.6.x
Thanks
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https://bugs.openldap.org/show_bug.cgi?id=10203
Issue ID: 10203
Summary: no pkgconfig file included for liblmdb
Product: LMDB
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: otto(a)drijf.net
Target Milestone: ---
liblmdb does not ship with a pkgconfig file. More and more build systems rely
on presense of a pkgconfig file, so it would be nice if liblmdb installed
oneone. An example:
prefix=/usr/local
exec_prefix=${prefix}
libdir=${prefix}/lib
includedir=${prefix}/include
Name: lmdb
Description: Lightning memory-mapped database: key-value data store
URL: https://www.symas.com/symas-embedded-database-lmdb
Version: 0.9.32
Libs: -L${libdir} -llmdb
Cflags: -I${includedir}
Thanks.
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https://bugs.openldap.org/show_bug.cgi?id=8613
Howard Chu <hyc(a)openldap.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://bugs.openldap.org/s
| |how_bug.cgi?id=10167
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https://bugs.openldap.org/show_bug.cgi?id=7249
Quanah Gibson-Mount <quanah(a)openldap.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|2.6.8 |2.6.9
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