44 lines
1.3 KiB
Diff
44 lines
1.3 KiB
Diff
From 3f413fb5813c979c7bdcc15ec4b059dbd533f4d1 Mon Sep 17 00:00:00 2001
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From: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
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Date: Wed, 20 Oct 2021 17:18:21 +1300
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Subject: [PATCH 169/266] CVE-2020-25722 s4/dsdb/samldb:
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samldb_fsmo_role_owner_check checks values
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=14876
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Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
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Reviewed-by: Andrew Bartlett <abartlet@samba.org>
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Conflict:NA
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Reference:https://gitlab.com/samba-team/samba/-/commit/3f413fb5813c979c7bdcc15ec4b059dbd533f4d1
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---
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source4/dsdb/samdb/ldb_modules/samldb.c | 10 ++++++++--
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1 file changed, 8 insertions(+), 2 deletions(-)
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diff --git a/source4/dsdb/samdb/ldb_modules/samldb.c b/source4/dsdb/samdb/ldb_modules/samldb.c
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index 80ca1e3afc0..d75277b3853 100644
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--- a/source4/dsdb/samdb/ldb_modules/samldb.c
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+++ b/source4/dsdb/samdb/ldb_modules/samldb.c
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@@ -4302,9 +4302,15 @@ static int samldb_fsmo_role_owner_check(struct samldb_ctx *ac)
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struct ldb_dn *res_dn;
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struct ldb_result *res;
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int ret;
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+ ret = dsdb_get_expected_new_values(ac,
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+ ac->msg,
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+ "fSMORoleOwner",
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+ &el,
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+ ac->req->operation);
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+ if (ret != LDB_SUCCESS) {
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+ return ret;
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+ }
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- el = dsdb_get_single_valued_attr(ac->msg, "fSMORoleOwner",
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- ac->req->operation);
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if (el == NULL) {
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/* we are not affected */
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return LDB_SUCCESS;
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--
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2.23.0
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