openssl: fix CVE-2022-3996 double locking leads to denial of service

(From OE-Core rev: 7007673bcdb606dbe78c71f72aceda6483485fb6)

Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 44 insertions, 0 deletions

diff --git a/meta/recipes-connectivity/openssl/openssl/CVE-2022-3996.patch b/meta/recipes-connectivity/openssl/openssl/CVE-2022-3996.patch
new file mode 100644
index 0000000000..6d70b323d1
--- /dev/null
+++ b/meta/recipes-connectivity/openssl/openssl/CVE-2022-3996.patch
@@ -0,0 +1,43 @@
+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)
+
+Upstream-Status: Backport [https://github.com/openssl/openssl/commit/7725e7bfe6f2ce8146b6552b44e0d226be7638e7]
+CVE: CVE-2022-3996
+Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
+---
+ 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;
+ 
+-- 
+2.30.2
+
diff --git a/meta/recipes-connectivity/openssl/openssl_3.0.7.bb b/meta/recipes-connectivity/openssl/openssl_3.0.7.bb
index 45fd1de2fd..1842148592 100644
--- a/meta/recipes-connectivity/openssl/openssl_3.0.7.bb
+++ b/meta/recipes-connectivity/openssl/openssl_3.0.7.bb
@@ -12,6 +12,7 @@ SRC_URI = "http://www.openssl.org/source/openssl-${PV}.tar.gz \
            file://0001-buildinfo-strip-sysroot-and-debug-prefix-map-from-co.patch \
            file://afalg.patch \
            file://0001-Configure-do-not-tweak-mips-cflags.patch \
+           file://CVE-2022-3996.patch \
            "
 
 SRC_URI:append:class-nativesdk = " \