Update CHANGES/NEWS for CVE-2023-3446

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21451)

diff --git a/CHANGES.md b/CHANGES.md
index 6cfba54e720980ddcb94df79926c1ad8f10930c8..28ed897231a0c4f1477419c7749e6b5d542697f8 100644 (file)
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -286,6 +286,25 @@ OpenSSL 3.1
 
 ### Changes between 3.1.1 and 3.1.2 [xx XXX xxxx]
 
+ * Fix DH_check() excessive time with over sized modulus
+
+   The function DH_check() performs various checks on DH parameters. One of
+   those checks confirms that the modulus ("p" parameter) is not too large.
+   Trying to use a very large modulus is slow and OpenSSL will not normally use
+   a modulus which is over 10,000 bits in length.
+
+   However the DH_check() function checks numerous aspects of the key or
+   parameters that have been supplied. Some of those checks use the supplied
+   modulus value even if it has already been found to be too large.
+
+   A new limit has been added to DH_check of 32,768 bits. Supplying a
+   key/parameters with a modulus over this size will simply cause DH_check() to
+   fail.
+
+   ([CVE-2023-3446])
+
+   *Matt Caswell*
+
  * Do not ignore empty associated data entries with AES-SIV.
 
    The AES-SIV algorithm allows for authentication of multiple associated
@@ -20031,6 +20050,7 @@ ndif
 
 <!-- Links -->
 
+[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446
 [CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975
 [RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5
 [CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650

diff --git a/NEWS.md b/NEWS.md
index 7bfc645626cc55e73f73a9dd80dcc75e6bbbf6ad..899be2b61601cb5308f9c80b4cad9585cc68115f 100644 (file)
--- a/NEWS.md
+++ b/NEWS.md
@@ -39,6 +39,7 @@ OpenSSL 3.1
 
 ### Major changes between OpenSSL 3.1.1 and OpenSSL 3.1.2 [under development]
 
+  * Fix DH_check() excessive time with over sized modulus ([CVE-2023-3446])
   * Do not ignore empty associated data entries with AES-SIV ([CVE-2023-2975])
   * When building with the `enable-fips` option and using the resulting
     FIPS provider, TLS 1.2 will, by default, mandate the use of an
@@ -1480,6 +1481,7 @@ OpenSSL 0.9.x
 
 <!-- Links -->
 
+[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446
 [CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975
 [CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650
 [CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255