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Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Aug 14 20:51:11 UTC 2023 on atb-devel-224
Accessing the wrong member of a union invokes undefined behaviour.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Otherwise we getthis kind of thing:
../../lib/replace/replace.c:837:3: error: implicit declaration of function 'strlcpy' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
strlcpy(buf, s, buflen);
../../third_party/heimdal/lib/roken/getarg.c:288:6: error: implicit declaration of function 'strlcat' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
strlcat(buf, "]", sizeof(buf));
because we found the symbol names in libc, but didn't check that the
functions are declared in <string.h>. We already include
<bsd/string.h> whenever we have it.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Aug 8 05:35:08 UTC 2023 on atb-devel-224
We were wanting to ensure the string contains a zero byte, but
instead were checking for a non-zero byte.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We have been using `uint8_t *`, which works fine as far as
linking goes, but leads fuzz target developers to sometimes
forget why they can't just modify the passed in string instead of
copying it for modification (e.g. to NUL-terminate).
REF: https://llvm.org/docs/LibFuzzer.html#fuzz-target
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
CH_DISPLAY was removed in commit
125a2ff262, but NUM_CHARSETS was not
updated to match.
By assigning to NUM_CHARSETS the last enumeration value in charset_t, we
guard against its falling out of sync again.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
PyObject_AsMessageElement() has ‘flags’ and ‘attr_name’ parameters to
set properties of the returned MessageElement, but they apply only
*sometimes*.
‘attr_name’ not being set can result in cryptic and misleading error
messages from various ldb operations.
Changing the function’s behaviour to be more consistent could break
existing code, so we work around the issue instead.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If ‘tmp’ happens to be garbage-collected, ‘name’ will become invalid.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reported by Red Hat internal covscan
leaked_storage: Variable "cursor" going out of scope leaks the storage it points to.
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
* CVE-2023-0614 Not-secret but access controlled LDAP attributes can be discovered (bug 15270)
* pyldb: Raise an exception if ldb_dn_get_parent() fails
* Implement ldap_whoami in pyldb and add the RFC4532 LDB_EXTENDED_WHOAMI_OID definition
* Documentation and spelling fixes
* Add ldb_val -> bool,uint64,int64 parsing functions
* Split out ldb_val_as_dn() helper function
* add LDB_CHANGETYPE_MODRDN support to ldb_ldif_to_pyobject()
* add LDB_CHANGETYPE_DELETE support to ldb_ldif_to_pyobject()
* let ldb_ldif_parse_modrdn() handle names without 'rdn_name=' prefix
* Don't create error string if there is no error
* Avoid allocation and memcpy() for every wildcard match candidate
* Make ldb_msg_remove_attr O(n)
* pyldb: Throw error on invalid controls
* pyldb: remove py2 ifdefs
* Call tevent_set_max_debug_level(TEVENT_DEBUG_TRACE)
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15270
Signed-off-by: Jule Anger <janger@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
As hinted in f2416493c0 the DCOM and WMI
IDL is now unused. These generate code with PIDL, costing a small
amount of build time but more importantly are fuzzed, which costs an
ongoing amount of CPU time as oss-fuzz tries to find parsing issues.
We do not need to continue this waste, and these can be restored
if this effort is ever to start again.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
MIT Kerberos implements krb5_free_enctypes(), Heimdal is missing it and
offers krb5_xfree() instead.
This introduces a wrapper krb5_free_enctypes() around krb5_xfree() for
Heimdal.
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15289
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Jul 21 06:16:30 UTC 2023 on atb-devel-224
The purpose of this is to make it clear which part of the AD DC (in particular)
has faulted without having to deduce it from the stacktrace.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This means ldb_tevent_debug() is only called for TEVENT_DEBUG_TRACE.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This means samba_tevent_debug() is only called when needed.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
- remove py2 ifdefs
- python: Safely clear structure members
- the tevent_thread_call_depth API is updated
in order to allow better tracing.
- add tevent_set_max_debug_level() only and don't
pass TEVENT_DEBUG_TRACE to tevent_debug() callbacks by default.
- Spelling fixes
- Make use of epoll_create1() for epoll backend
- Optimize overhead in the epoll backend
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is clearer for multiplexed fdes as it means both sides are
already cleared before we call epoll_update_event() again.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The preparation, function call and cleanup for epoll_check_reopen()
is quite some overhead and not needed most of the time!
So check the pid in the caller avoids most of it.
Review with: git show -w
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
It can be very costly to calculate the arguments passed to
tevent_debug(), just to drop the message within tevent_debug()
or the callback function.
So we add a way to avoid the overhead, it will be used in the
next commits.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Allow an application to decide which log levels it wants to get
in the callback function passed to tevent_set_debug().
By default TEVENT_DEBUG_WARNING is the maximal reported level
and TEVENT_DEBUG_TRACE message no longer reach the callback function
by default.
It seems Samba is the only consumer of tevent_set_debug(), so it
should not be a huge problem, as Samba only reports TEVENT_DEBUG_TRACE
message with log level 50 anyway. And future Samba versions will
call tevent_set_max_debug_level() if needed.
Note the change to tevent-0.14.1.sigs will be reverted
with the release of tevent 0.15.0.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is similar to the "context" test, but without signal handlers.
It also creates a constant load instead of being time limited,
which makes it useful to analyse using callgrind and other tools.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Note the tevent-0.14.1.sigs changes will be reverted in
the 'tevent 0.15.0' commit.
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Note the tevent-0.14.1.sigs changes will be reverted in
the 'tevent 0.15.0' commit.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Pavel Filipenský <pfilipensky@samba.org>
Note the tevent-0.14.1.sigs changes will be reverted in
the 'tevent 0.15.0' commit.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Pavel Filipenský <pfilipensky@samba.org>
Note the tevent-0.14.1.sigs changes will be reverted in
the 'tevent 0.15.0' commit.
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Note the tevent-0.14.1.sigs changes will be reverted in
the 'tevent 0.15.0' commit.
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Note the tevent-0.14.1.sigs changes will be reverted in
the 'tevent 0.15.0' commit.
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Removing the explicit notice about ldb in order to
have the same content in all copies of dlinklist.h
in the next commits.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Prefer epoll_create1(2) over epoll_create(2) and
always require the former to use epoll(7) interface,
thus saving extra fcntl(2) call to set FD_CLOEXEC.
Signed-off-by: Dmitry Antipov <dantipov@cloudlinux.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Prefer epoll_create1(2) over epoll_create(2) and
always require the former to use epoll(7) interface.
Signed-off-by: Dmitry Antipov <dantipov@cloudlinux.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
* Remove remaining, but broken python2 support
* Spelling fixes
* python: Safely clear structure members
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
If this patch is applied, and an environment variable is set, all
access_check calls will be recorded as seeds for
fuzz_security_token_vs_descriptor. See the patch for details.
You probably will never want to apply this patch, but it is here just
in case.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This of course doesn't exercise the object tree or default SID code,
but it still covers a lot to the *_ds access_check functions.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The token and descriptor are stored in NDR format; for this purpose we
add a new IDL struct containing this pair (along with a desired access
mask).
An upcoming commit will show how to collect seeds for this fuzzer.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This fuzzer parses SDDL into a security descriptor and runs an access
check on it using a known security token. This is purely for crash
detection -- we don't know enough to assert whether the check should
succeed or not.
The seed strings used are compatible with those of fuzz_sddl_parse --
anything found by fuzz_sddl_parse is worth trying as a seed here, and
vice versa.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
There are multiple places we make this assumption. For example, in
source3/lib/tldap.c, we have this line
if (ld->msgid == 2147483647) {
where ld->msgid is an int. And in librpc/idl/security.idl we have
several lines like:
const int SEC_MASK_GENERIC = 0xF0000000;
In lib/replace/inet_pton.c and inet_ntop.c we have
/*
* WARNING: Don't even consider trying to compile this on a system where
* sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
*/
but no attempt to enforce that as far as I can see, until now.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jul 11 22:44:15 UTC 2023 on atb-devel-224
I can not find the code that required this, even in the history.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Jun 30 14:59:46 UTC 2023 on atb-devel-224
This allows us to remove a lot of conditionally compiled code and so
know with more certainly that our tests are covering our code-paths.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
These will shortly be unused as we will rely on GnuTLS for all AES cryptography
now that we require GnuTLS 3.6.13
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This removes a lot of inline #ifdef and means this feature is always tested.
We can do this as we have chosen GnuTLS 3.6.13 as the new minimum version.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This can be included in logged authentications and authorizations.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This parameter was removed in commit
c37d6be2db.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Such a failure could be caused by situations other than memory errors,
but a simple indication of failure is all that ldb_dn_get_parent() gives
us to work with.
We keep the old behaviour of returning None if the DN has no components,
which an existing test (ldb.python.api.DnTests.test_parent_nonexistent)
expects.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should not skip all of close_low_fd() just because we
detected valgrind headers at build time.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
json_add_timestamp() is limited to adding a ‘timestamp’ field with the
current time. The new function can add an arbitrary timestamp with an
arbitrary field name.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This replaces a couple of calls to snprintf() in
log_authentication_event_json() and log_successful_authz_event_json()
respectively.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Using Py_CLEAR() ensures that these structures are observed in a
consistent state by any Python code that may run during deconstruction.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Prefer 'size_t' over 'int' in generate_random_buffer(),
generate_secret_buffer() and generate_nonce_buffer() to
match an underlying gnutls_rnd() calls.
Signed-off-by: Dmitry Antipov <dantipov@cloudlinux.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This allows the new unsupported functional levels to be unlocked, but with an smb.conf
option that is easily seen.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Fix the following error observed running samba.test.registry
compiled with clang-17 and UBsan:
lib/ldb/common/ldb_ldif.c:881:9: runtime error: applying non-zero offset 137438953440 to null pointer
#0 0x7faa0eb3932f in ldb_ldif_read lib/ldb/common/ldb_ldif.c:881
#1 0x7faa0eb3aec6 in ldb_ldif_read_string lib/ldb/common/ldb_ldif.c:1004
#2 0x7faa077ed759 in dsdb_set_schema_from_ldif source4/dsdb/schema/schema_set.c:1113
#3 0x7faa068fcbbf in py_dsdb_set_schema_from_ldif source4/dsdb/pydsdb.c:929
#4 0x7faa1d1d4507 in cfunction_call (/lib64/libpython3.11.so.1.0+0x1d4507)
[... a lot of Python calls skipped...]
I.e. number of elements should be checked against zero
before making an attempt to access an element by index.
Signed-off-by: Dmitry Antipov <dantipov@cloudlinux.com>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
runtime error: left shift of 65535 by 16 places cannot be represented in type 'int'
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Apart from catching crashes in the actual parsing, we abort if the SD
we end up with will not round trip back through SDDL to an identical
SD.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Missed two more places originally when introduced ROLE_IPA_DC.
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Alexander Bokovoy <ab@samba.org>
Autobuild-Date(master): Tue Apr 25 07:46:36 UTC 2023 on atb-devel-224
This avoids unnecessary attempts to load libgpfs.so when it is not
needed.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Apr 14 12:28:23 UTC 2023 on atb-devel-224
If a test fails an assertion, and later calls torture_skip() to skip
part of the test, the TORTURE_SKIP result will overwrite the
TORTURE_FAIL result, and the overall outcome will be successful.
To avoid this, we now arrange possible outcomes in order of priority,
and ensure we always keep the higher priority one.
This reveals some failing tests.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
If we don't check for NULL after each loop iteration, the failure could
be masked in the next iteration by talloc_asprintf_append() allocating
on the NULL context. That could result in values getting lost.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Computing a pointer that points outside of an array, and not to one past
the last element, is undefined behaviour. To avoid this, do our
comparisons in terms of lengths, not pointers.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
If the LDB_UNPACK_DATA_FLAG_NO_ATTRS flag is set, we don't return any
elements, so we should set num_elements accordingly. This ensures
callers don't try to access elements that aren't there.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
That an attribute has been access checked doesn't mean that the user has
the right to view it.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Commit bed9efa6cd introduced
ldb_msg_add_linearized_dn() to replace ldb_msg_add_dn(), but retained
the now-incorrect associated comment. The comment later made its way
into a function added later by commit 'CVE-2022-32746 ldb: Add functions
for appending to an ldb_message'.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15008
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
This comment originally referred, not to a va_copy() call, but to the
use of &c with vsnprintf() rather than passing in NULL with a length of
zero.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Apr 11 10:08:54 UTC 2023 on atb-devel-224
This avoids sending new or reset passwords in the clear
(integrity protected only) from samba-tool in particular.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15315
Signed-off-by: Rob van der Linde <rob@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Apr 5 03:08:51 UTC 2023 on atb-devel-224
Setting the LDB_HANDLE_FLAG_UNTRUSTED tells the acl_read module to operate on this request.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15270
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
The chain for transitive evaluation does consider ACLs, avoiding the disclosure of
confidential information.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15270
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
