Blame SOURCES/cve-2021-3480-fix.patch
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From 2f2b7ecd9d6a0f5044c24e4f96464942a1d873db Mon Sep 17 00:00:00 2001
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From: Alexander Bokovoy <abokovoy@redhat.com>
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Date: Wed, 7 Apr 2021 14:40:52 +0300
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Subject: [PATCH] CVE-2021-3480: invalid bind DN crash
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For certain LDAP bind operations 389-ds would pass unvalidated bind DN
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to bind plugins. A first attempt to normalize the DN would find that out
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and should reject the request.
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Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
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---
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src/back-sch.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/src/back-sch.c b/src/back-sch.c
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index a5e4c04..d806627 100644
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--- a/src/back-sch.c
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+++ b/src/back-sch.c
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@@ -1988,6 +1988,11 @@ backend_locate_cb(const char *group, const char *set, bool_t flag,
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rdn = slapi_rdn_new_sdn(cbdata->target_dn);
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if (rdn != NULL) {
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rdnstr = slapi_rdn_get_nrdn(rdn);
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+ if (rdnstr == NULL) {
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+ /* normalizing RDN failed, break the search */
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+ slapi_rdn_free(&rdn;;
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+ return FALSE;
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+ }
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if (map_match(cbdata->state, group, set, &flag,
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strlen(rdnstr), rdnstr,
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&ndnlen, &ndn,
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--
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2.31.1
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