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The initial implementation of gnutls_aead_cipher_decrypt() had a bug and
used:
*ptext_len = ctext_len;
instead of:
*ptext_len = ctext_len - tag_size;
This got fixed with gnutls 3.5.2.
As we only require gnutls 3.4.7 we need to cope with this...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14968
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Wed Feb 2 18:29:08 UTC 2022 on sn-devel-184
gnutls before 3.7.2 and without getrandom() will open /dev/urandom at library
initialization time before main() is run. We use closefrom(3) in samba-bgqd and
samba-dcerpd, which closes /dev/urandom, which then breaks gnutls. On system
with getrandom(), no file descriptor is opened and gnutls 3.7.2+ will open and
close /dev/urandom whenever it needs to access it.
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): Fri Jan 21 21:42:08 UTC 2022 on sn-devel-184
The memory leak bug up to 3.6.14 was only related to ccm, but gcm was
fine.
This avoids talloc+memcpy on more systems, e.g. ubuntu 20.04,
and brings ~ 20% less cpu overhead, see:
https://hackmd.io/@asn/samba_crypto_benchmarks
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14764
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Apr 13 19:17:56 UTC 2021 on sn-devel-184
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14399
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Sep 11 08:27:26 UTC 2020 on sn-devel-184
We should use the default priority list. That is a good practice,
because TLS protocol hardening and phasing out of legacy algorithms,
is easier to co-ordinate when happens at a single place. See crypto
policies of Fedora.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14408
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Jun 17 17:42:02 UTC 2020 on sn-devel-184
This is available since version 3.6.10, but 3.6.10 has a bug which got fixed
in 3.6.11, see:
https://gitlab.com/gnutls/gnutls/-/merge_requests/1085
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14250
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Feb 4 06:44:00 UTC 2020 on sn-devel-184
We strictly require it and if this were to fail we would want the compile to fail.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This will soon be required for encrypted_secrets in the AD DC, the BackupKey server
and SMB2 as we remove use of the internal AES code.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This is used by the GnuTLS backupkey implementation.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We plan to move to GnuTLS for crypto in Samba, this is the first step to
make it mandatory and to require a version which is in LTS
distributions.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
