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7 Commits

Author SHA1 Message Date
Volker Lendecke
1b139de552 libcli/ldap: Fix CID 1462695 Resource leak
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2020-08-06 19:00:36 +00:00
Volker Lendecke
de2a7574e8 libcli/ldap: Fix CID 1462696 Resource leak
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2020-08-06 19:00:36 +00:00
Volker Lendecke
41beb510be libcli/ldap: Fix CID 1465278 Resource leak
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2020-08-06 19:00:36 +00:00
Volker Lendecke
60b0928945 libcli/ldap: Test decoding an exop response
ldap-starttls-response.dat is a reply to a starttls extended
operation. Right now ldap_decode() does not handle this correctly.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2020-07-09 20:16:40 +00:00
Gary Lockyer
d701bc1518 libcli ldap tests: remove use of zero length array
libcli/ldap/tests/ldap_message_test.c defines a zero length array
(uint8_t buf[0]), which is a GCC extension and breaks the build with
some strict compilers like xlc.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14387

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Jun 23 02:15:35 UTC 2020 on sn-devel-184
2020-06-23 02:15:35 +00:00
Gary Lockyer
3149ea0a8a CVE-2020-10704: libcli ldap_message: Add search size limits to ldap_decode
Add search request size limits to ldap_decode calls.

The ldap server uses the smb.conf variable
"ldap max search request size" which defaults to 250Kb.
For cldap the limit is hard coded as 4096.

Credit to OSS-Fuzz

REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20454
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14334

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2020-05-04 02:59:32 +00:00
Gary Lockyer
b0832d2016 CVE-2020-10704: libcli ldap: test recursion depth in ldap_decode_filter_tree
Add tests to check that ASN.1 ldap requests with deeply nested elements
are rejected.  Previously there was no check on the on the depth of
nesting and excessive nesting could cause a stack overflow.

Credit to OSS-Fuzz

REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20454
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14334

Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2020-05-04 02:59:32 +00:00