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We later subtract 8 when calculating the length of the output message
buffer. If padlength is excessively high, this calculation can underflow
and result in a very large positive value.
Now we properly constrain the value of padlength so underflow shouldn't
be possible.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If len_len is equal to total_len - 1 (i.e. the input consists only of a
0x60 byte and a length), the expression 'total_len - 1 - len_len - 1',
used as the 'len' parameter to der_get_length(), will overflow to
SIZE_MAX. Then der_get_length() will proceed to read, unconstrained,
whatever data follows in memory. Add a check to ensure that doesn't
happen.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should make sure that the result of 'total_len - mech_len' won't
overflow, and that we don't memcmp() past the end of the buffer.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
By decrementing 'pad' only when we know it's safe, we ensure we can't
stray backwards past the start of a buffer, which would be undefined
behaviour.
In the previous version of the loop, 'i' is the number of bytes left to
check, and 'pad' is the current byte we're checking. 'pad' was
decremented at the end of each loop iteration. If 'i' was 1 (so we
checked the final byte), 'pad' could potentially be pointing to the
first byte of the input buffer, and the decrement would put it one
byte behind the buffer.
That would be undefined behaviour.
The patch changes it so that 'pad' is the byte we previously checked,
which allows us to ensure that we only decrement it when we know we
have a byte to check.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The surrounding checks all use ct_memcmp(), so this one was presumably
meant to as well.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This allows us to access (and so test) functions internal to GSSAPI by
depending on this subsystem.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As described by the C standard, __func__ is a variable, not a macro.
Hence this #ifndef check does not work as intended, and only serves to
unconditionally disable __func__. A nonoperating __func__ prevents
cmocka operating correctly, so remove this definition.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15134
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
later gnutls that support GNUTLS_PBKDF2 currently fail,
we need to conditionally switch test data to reflect use of
'samr_ChangePasswordUser3' or 'samr_ChangePasswordUser4'
depending on whether GNUTLS_PBKDF2 is supported or not
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Oct 25 10:30:59 UTC 2022 on sn-devel-184
prior to this commit return of samdb_set_password_aes was set to
NT_STATUS_WRONG_PASSWORD on failure. Useful status that should be
returned such as NT_STATUS_PASSWORD_RESTRICTION are swallowed here
otherwise (and in this case can be partially responsible for failures
in test samba.tests.auth_log_pass_change (with later gnutls)
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
GPFS 3.5 introduced support for storing the DACL_PROTECTED flag as part
of the ACL. That version has long been superceded. Remove this now
unused codepath.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15211
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Bjoern Jacke <bjacke@samba.org>
This only enforces user group policy at logon.
We should also enforce this policy every 90 to
120 minutes, but a logoff will need to cancel the
timer and we cannot have multiple timers if there
are multiple sessions for the same user.
Signed-off-by: David Mulder <dmulder@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Oct 21 18:48:18 UTC 2022 on sn-devel-184
This was written prior to the release of Windows Vista and later
versions.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Douglas Bagnall <dbagnall@samba.org>
Autobuild-Date(master): Fri Oct 21 04:53:47 UTC 2022 on sn-devel-184
These escapes are meant for the regular expression engine
not the string parser.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Samba is now a mature user of Python and can cope with a
list comprehension from time to time.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
The result is not used, it is only part of the macro to gain
type-checking.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This is the clearer way to trigger the destruction of this variable
and so the LDB connection under it.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
While the invalid escape sequence worked and was passed to the LDB
layer for it's use, linting tools will complain so we should not do
this. We don't want to get caught out when a future python version
becomes more strict.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This follows the same with 'attrs' in the previous commit.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This now local and static const list was otherwise a duplicate symbol
shadowing with the global user_attrs.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
The name of the context looks like it should match the name of the
function, but doesn't quite.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This allows this type to be used in Samba in the future for
both Kerberos implementations
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This demonstrates the behaviour of Windows 11 22H2 over Kerberos,
which changed to use a year 9999 date for a forever timetime in
tickets.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15197
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Oct 20 05:00:23 UTC 2022 on sn-devel-184
