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File _service:tar_scm_kernel_repo:backport-0023-CVE-2020-25722-s4-dsdb-samldb-samldb_user_account_co.patch of Package samba
From 2991eedefc19367b57313b72a3b741eae74d049c Mon Sep 17 00:00:00 2001 From: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Date: Wed, 20 Oct 2021 17:15:00 +1300 Subject: [PATCH 163/266] CVE-2020-25722 s4/dsdb/samldb: samldb_user_account_control_change() checks all values There is another call to dsdb_get_expected_new_values() in this function that we change in the next commit. BUG: https://bugzilla.samba.org/show_bug.cgi?id=14876 Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Conflict:NA Reference:https://gitlab.com/samba-team/samba/-/commit/2991eedefc19367b57313b72a3b741eae74d049c --- source4/dsdb/samdb/ldb_modules/samldb.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/source4/dsdb/samdb/ldb_modules/samldb.c b/source4/dsdb/samdb/ldb_modules/samldb.c index ba56cf8826e..b84ef4c26d5 100644 --- a/source4/dsdb/samdb/ldb_modules/samldb.c +++ b/source4/dsdb/samdb/ldb_modules/samldb.c @@ -2807,8 +2807,15 @@ static int samldb_user_account_control_change(struct samldb_ctx *ac) bool old_is_critical = false; bool new_is_critical = false; - el = dsdb_get_single_valued_attr(ac->msg, "userAccountControl", - ac->req->operation); + ret = dsdb_get_expected_new_values(ac, + ac->msg, + "userAccountControl", + &el, + ac->req->operation); + if (ret != LDB_SUCCESS) { + return ret; + } + if (el == NULL || el->num_values == 0) { ldb_asprintf_errstring(ldb, "%08X: samldb: 'userAccountControl' can't be deleted!", -- 2.23.0
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