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File _service:tar_scm_kernel_repo:backport-0018-CVE-2020-25722-s4-dsdb-samldb-samldb_get_single_valu.patch of Package samba
From 7913ec038f25b1778dfe545766266c70502e7c63 Mon Sep 17 00:00:00 2001 From: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Date: Wed, 20 Oct 2021 17:10:44 +1300 Subject: [PATCH 158/266] CVE-2020-25722 s4/dsdb/samldb: samldb_get_single_valued_attr() check all values using dsdb_get_expected_new_values(). 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/7913ec038f25b1778dfe545766266c70502e7c63 --- source4/dsdb/samdb/ldb_modules/samldb.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/source4/dsdb/samdb/ldb_modules/samldb.c b/source4/dsdb/samdb/ldb_modules/samldb.c index 006658d2bce..4bd40a5ef1f 100644 --- a/source4/dsdb/samdb/ldb_modules/samldb.c +++ b/source4/dsdb/samdb/ldb_modules/samldb.c @@ -171,11 +171,19 @@ static int samldb_get_single_valued_attr(struct ldb_context *ldb, * attribute. */ struct ldb_message_element *el = NULL; + int ret; *value = NULL; - el = dsdb_get_single_valued_attr(ac->msg, attr, - ac->req->operation); + ret = dsdb_get_expected_new_values(ac, + ac->msg, + attr, + &el, + ac->req->operation); + + if (ret != LDB_SUCCESS) { + return ret; + } if (el == NULL) { /* we are not affected */ return LDB_SUCCESS; -- 2.23.0
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