diff options
| author | Ralph Boehme <slow@samba.org> | 2018-02-15 14:40:59 +0100 |
|---|---|---|
| committer | Stefan Metzmacher <metze@samba.org> | 2018-03-13 10:23:09 +0100 |
| commit | 9a3f754ec7df9bc587bbb9f8a541a97d9c9b071a (patch) | |
| tree | fe78126637148a2a24a06db6c3c496650a198ca8 /source4/dsdb | |
| parent | 231ed98447dbc310118096b330abf673c5c5d3db (diff) | |
| download | samba-9a3f754ec7df9bc587bbb9f8a541a97d9c9b071a.tar.gz | |
CVE-2018-1057: s4:dsdb/password_hash: add a helper variable for passwordAttr->num_values
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13272
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Diffstat (limited to 'source4/dsdb')
| -rw-r--r-- | source4/dsdb/samdb/ldb_modules/password_hash.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/password_hash.c b/source4/dsdb/samdb/ldb_modules/password_hash.c index 5b9de954ff4..ab17ce3dc1e 100644 --- a/source4/dsdb/samdb/ldb_modules/password_hash.c +++ b/source4/dsdb/samdb/ldb_modules/password_hash.c @@ -4247,6 +4247,7 @@ static int password_hash_modify(struct ldb_module *module, struct ldb_request *r while ((passwordAttr = ldb_msg_find_element(msg, *l)) != NULL) { unsigned int mtype = LDB_FLAG_MOD_TYPE(passwordAttr->flags); + unsigned int nvalues = passwordAttr->num_values; if (mtype == LDB_FLAG_MOD_DELETE) { ++del_attr_cnt; @@ -4257,18 +4258,14 @@ static int password_hash_modify(struct ldb_module *module, struct ldb_request *r if (mtype == LDB_FLAG_MOD_REPLACE) { ++rep_attr_cnt; } - if ((passwordAttr->num_values != 1) && - (mtype == LDB_FLAG_MOD_ADD)) - { + if ((nvalues != 1) && (mtype == LDB_FLAG_MOD_ADD)) { talloc_free(ac); ldb_asprintf_errstring(ldb, "'%s' attribute must have exactly one value on add operations!", *l); return LDB_ERR_CONSTRAINT_VIOLATION; } - if ((passwordAttr->num_values > 1) && - (mtype == LDB_FLAG_MOD_DELETE)) - { + if ((nvalues > 1) && (mtype == LDB_FLAG_MOD_DELETE)) { talloc_free(ac); ldb_asprintf_errstring(ldb, "'%s' attribute must have zero or one value(s) on delete operations!", |