Update CHANGES and NEWS for new release

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Release: yes

2 files changed, 110 insertions, 0 deletions

diff --git a/CHANGES.md b/CHANGES.md
index 6ef8e7c5c8..b2cabb303c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -120,6 +120,105 @@ breaking changes, and mappings for the large list of deprecated functions.
 
 ### Changes between 3.0.2 and 3.0.3
 
+ * Fixed a bug in the c_rehash script which was not properly sanitising shell
+   metacharacters to prevent command injection.  This script is distributed by
+   some operating systems in a manner where it is automatically executed.  On
+   such operating systems, an attacker could execute arbitrary commands with the
+   privileges of the script.
+
+   Use of the c_rehash script is considered obsolete and should be replaced
+   by the OpenSSL rehash command line tool.
+   (CVE-2022-1292)
+
+   *Tomáš Mráz*
+
+ * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer
+   certificate on an OCSP response. The bug caused the function in the case
+   where the (non-default) flag OCSP_NOCHECKS is used to return a postivie
+   response (meaning a successful verification) even in the case where the
+   response signing certificate fails to verify.
+
+   It is anticipated that most users of `OCSP_basic_verify` will not use the
+   OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return
+   a negative value (indicating a fatal error) in the case of a certificate
+   verification failure. The normal expected return value in this case would be
+   0.
+
+   This issue also impacts the command line OpenSSL "ocsp" application. When
+   verifying an ocsp response with the "-no_cert_checks" option the command line
+   application will report that the verification is successful even though it
+   has in fact failed. In this case the incorrect successful response will also
+   be accompanied by error messages showing the failure and contradicting the
+   apparently successful result.
+   ([CVE-2022-1343])
+
+   *Matt Caswell*
+
+ * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the
+   AAD data as the MAC key. This made the MAC key trivially predictable.
+
+   An attacker could exploit this issue by performing a man-in-the-middle attack
+   to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such
+   that the modified data would still pass the MAC integrity check.
+
+   Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0
+   endpoint will always be rejected by the recipient and the connection will
+   fail at that point. Many application protocols require data to be sent from
+   the client to the server first. Therefore, in such a case, only an OpenSSL
+   3.0 server would be impacted when talking to a non-OpenSSL 3.0 client.
+
+   If both endpoints are OpenSSL 3.0 then the attacker could modify data being
+   sent in both directions. In this case both clients and servers could be
+   affected, regardless of the application protocol.
+
+   Note that in the absence of an attacker this bug means that an OpenSSL 3.0
+   endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete
+   the handshake when using this ciphersuite.
+
+   The confidentiality of data is not impacted by this issue, i.e. an attacker
+   cannot decrypt data that has been encrypted using this ciphersuite - they can
+   only modify it.
+
+   In order for this attack to work both endpoints must legitimately negotiate
+   the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in
+   OpenSSL 3.0, and is not available within the default provider or the default
+   ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been
+   negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the
+   following must have occurred:
+
+   1) OpenSSL must have been compiled with the (non-default) compile time option
+      enable-weak-ssl-ciphers
+
+   2) OpenSSL must have had the legacy provider explicitly loaded (either
+      through application code or via configuration)
+
+   3) The ciphersuite must have been explicitly added to the ciphersuite list
+
+   4) The libssl security level must have been set to 0 (default is 1)
+
+   5) A version of SSL/TLS below TLSv1.3 must have been negotiated
+
+   6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any
+      others that both endpoints have in common
+   (CVE-2022-1434)
+
+   *Matt Caswell *
+
+ * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory
+   occuppied by the removed hash table entries.
+
+   This function is used when decoding certificates or keys. If a long lived
+   process periodically decodes certificates or keys its memory usage will
+   expand without bounds and the process might be terminated by the operating
+   system causing a denial of service. Also traversing the empty hash table
+   entries will take increasingly more time.
+
+   Typically such long lived processes might be TLS clients or TLS servers
+   configured to accept client certificate authentication.
+   (CVE-2022-1473)
+
+   *Tomáš Mráz*
+
  * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report
    the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other
    statistics are no longer supported. For compatibility, these statistics are
diff --git a/NEWS.md b/NEWS.md
index 99e8c715d3..630c57ae53 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -29,6 +29,17 @@ OpenSSL 3.1
 OpenSSL 3.0
 -----------
 
+### Major changes between OpenSSL 3.0.2 and OpenSSL 3.0.3
+
+  * Fixed a bug in the c_rehash script which was not properly sanitising shell
+    metacharacters to prevent command injection ([CVE-2022-1292])
+  * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer
+    certificate on an OCSP response ([CVE-2022-1343])
+  * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the
+    AAD data as the MAC key ([CVE-2022-1434])
+  * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory
+    occuppied by the removed hash table entries ([CVE-2022-1473])
+
 ### Major changes between OpenSSL 3.0.1 and OpenSSL 3.0.2
 
   * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever