From a68553792a8512a2d266bbb86f064f78b5482a65 Mon Sep 17 00:00:00 2001 From: Joseph Sutton Date: Tue, 21 Jun 2022 14:41:02 +1200 Subject: [PATCH] CVE-2022-32746 s4/dsdb/partition: Fix LDB flags comparison LDB_FLAG_MOD_* values are not actually flags, and the previous comparison was equivalent to (req_msg->elements[el_idx].flags & LDB_FLAG_MOD_MASK) != 0 which is true whenever any of the LDB_FLAG_MOD_* values are set. Correct the expression to what it was probably intended to be. BUG: https://bugzilla.samba.org/show_bug.cgi?id=15009 Signed-off-by: Joseph Sutton --- source4/dsdb/samdb/ldb_modules/partition.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/source4/dsdb/samdb/ldb_modules/partition.c b/source4/dsdb/samdb/ldb_modules/partition.c index 2544a106d13..2d90ca5d1b3 100644 --- a/source4/dsdb/samdb/ldb_modules/partition.c +++ b/source4/dsdb/samdb/ldb_modules/partition.c @@ -493,8 +493,8 @@ static int partition_copy_all_callback_action( * them here too */ for (el_idx=0; el_idx < req_msg->num_elements; el_idx++) { - if (req_msg->elements[el_idx].flags & LDB_FLAG_MOD_DELETE - || ((req_msg->elements[el_idx].flags & LDB_FLAG_MOD_REPLACE) && + if (LDB_FLAG_MOD_TYPE(req_msg->elements[el_idx].flags) == LDB_FLAG_MOD_DELETE + || ((LDB_FLAG_MOD_TYPE(req_msg->elements[el_idx].flags) == LDB_FLAG_MOD_REPLACE) && req_msg->elements[el_idx].num_values == 0)) { if (ldb_msg_find_element(modify_msg, req_msg->elements[el_idx].name) != NULL) { -- 2.47.2