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From 0d16b7e99aafc0b4a6d729eec65a411a7e025f0a Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tomas@openssl.org>
Date: Tue, 21 Mar 2023 16:15:47 +0100
Subject: [PATCH] Fix documentation of X509_VERIFY_PARAM_add0_policy()
The function was incorrectly documented as enabling policy checking.
Fixes: CVE-2023-0466
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20564)
CVE: CVE-2023-0466
Upstream-Status: Backport [https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=0d16b7e99aafc0b4a6d729eec65a411a7e025f0a]
Comment: Refreshed first hunk from CHANGE and NEWS
Signed-off-by: Omkar Patil <omkar.patil@kpit.com>
---
CHANGES | 5 +++++
NEWS | 1 +
doc/man3/X509_VERIFY_PARAM_set_flags.pod | 9 +++++++--
3 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/CHANGES b/CHANGES
index efccf7838e..b19f1429bb 100644
--- a/CHANGES
+++ b/CHANGES
@@ -9,6 +9,11 @@
Changes between 1.1.1s and 1.1.1t [7 Feb 2023]
+ *) Corrected documentation of X509_VERIFY_PARAM_add0_policy() to mention
+ that it does not enable policy checking. Thanks to
+ David Benjamin for discovering this issue. (CVE-2023-0466)
+ [Tomas Mraz]
+
*) Fixed X.400 address type confusion in X.509 GeneralName.
There is a type confusion vulnerability relating to X.400 address processing
diff --git a/NEWS b/NEWS
index 36a9bb6890..62615693fa 100644
--- a/NEWS
+++ b/NEWS
@@ -7,6 +7,7 @@
Major changes between OpenSSL 1.1.1s and OpenSSL 1.1.1t [7 Feb 2023]
+ o Fixed documentation of X509_VERIFY_PARAM_add0_policy() (CVE-2023-0466)
o Fixed X.400 address type confusion in X.509 GeneralName (CVE-2023-0286)
o Fixed Use-after-free following BIO_new_NDEF (CVE-2023-0215)
o Fixed Double free after calling PEM_read_bio_ex (CVE-2022-4450)
diff --git a/doc/man3/X509_VERIFY_PARAM_set_flags.pod b/doc/man3/X509_VERIFY_PARAM_set_flags.pod
index f6f304bf7b..aa292f9336 100644
--- a/doc/man3/X509_VERIFY_PARAM_set_flags.pod
+++ b/doc/man3/X509_VERIFY_PARAM_set_flags.pod
@@ -92,8 +92,9 @@ B<trust>.
X509_VERIFY_PARAM_set_time() sets the verification time in B<param> to
B<t>. Normally the current time is used.
-X509_VERIFY_PARAM_add0_policy() enables policy checking (it is disabled
-by default) and adds B<policy> to the acceptable policy set.
+X509_VERIFY_PARAM_add0_policy() adds B<policy> to the acceptable policy set.
+Contrary to preexisting documentation of this function it does not enable
+policy checking.
X509_VERIFY_PARAM_set1_policies() enables policy checking (it is disabled
by default) and sets the acceptable policy set to B<policies>. Any existing
@@ -377,6 +378,10 @@ and has no effect.
The X509_VERIFY_PARAM_get_hostflags() function was added in OpenSSL 1.1.0i.
+The function X509_VERIFY_PARAM_add0_policy() was historically documented as
+enabling policy checking however the implementation has never done this.
+The documentation was changed to align with the implementation.
+
=head1 COPYRIGHT
Copyright 2009-2020 The OpenSSL Project Authors. All Rights Reserved.
--
2.34.1
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