openssl3: add patch for CVE-2022-3996

Severity: Low

backport <https://github.com/openssl/openssl/commit/7725e7bfe6f2ce8146b6552b44e0d226be7638e7>.

OpenSSL 1.1.1 series are not affected by this vulnerability.

Security Advisary: https://www.openssl.org/news/secadv/20221213.txt

Change-Id: I42caba9c51291445fa96fc6f2280c681d6d6e582
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/144791
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

external/openssl/0001-x509-fix-double-locking-problem.patch.1

@@ -0,0 +1,39 @@
+From 7725e7bfe6f2ce8146b6552b44e0d226be7638e7 Mon Sep 17 00:00:00 2001
+From: Pauli <pauli@openssl.org>
+Date: Fri, 11 Nov 2022 09:40:19 +1100
+Subject: [PATCH] x509: fix double locking problem
+
+This reverts commit 9aa4be691f5c73eb3c68606d824c104550c053f7 and removed the
+redundant flag setting.
+
+Fixes #19643
+
+Fixes LOW CVE-2022-3996
+
+Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
+Reviewed-by: Tomas Mraz <tomas@openssl.org>
+(Merged from https://github.com/openssl/openssl/pull/19652)
+
+(cherry picked from commit 4d0340a6d2f327700a059f0b8f954d6160f8eef5)
+---
+ crypto/x509/pcy_map.c | 4 ----
+ 1 file changed, 4 deletions(-)
+
+diff --git a/crypto/x509/pcy_map.c b/crypto/x509/pcy_map.c
+index 05406c6493..60dfd1e320 100644
+--- a/crypto/x509/pcy_map.c
++++ b/crypto/x509/pcy_map.c
+@@ -73,10 +73,6 @@ int ossl_policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps)
+ 
+     ret = 1;
+  bad_mapping:
+-    if (ret == -1 && CRYPTO_THREAD_write_lock(x->lock)) {
+-        x->ex_flags |= EXFLAG_INVALID_POLICY;
+-        CRYPTO_THREAD_unlock(x->lock);
+-    }
+     sk_POLICY_MAPPING_pop_free(maps, POLICY_MAPPING_free);
+     return ret;
+ 
+-- 
+2.39.0
+

external/openssl/UnpackedTarball_openssl.mk

@@ -12,6 +12,7 @@ $(eval $(call gb_UnpackedTarball_UnpackedTarball,openssl))
 $(eval $(call gb_UnpackedTarball_set_tarball,openssl,$(OPENSSL_TARBALL),,openssl))
 
 $(eval $(call gb_UnpackedTarball_add_patches,openssl,\
+	external/openssl/0001-x509-fix-double-locking-problem.patch.1 \
 	external/openssl/openssl-no-multilib.patch.0 \
 	external/openssl/configurable-z-option.patch.0 \
 	external/openssl/openssl-no-ipc-cmd.patch.0 \