Update CHANGES.md and NEWS.md for the upcoming release

Reviewed-by: Matt Caswell <[email protected]>
Reviewed-by: Tom Cosgrove <[email protected]>
(Merged from openssl#24550)

(cherry picked from commit 3fa9df5)

CHANGES.md

@@ -24,6 +24,29 @@ OpenSSL 3.1
 
 ### Changes between 3.1.5 and 3.1.6 [xx XXX xxxx]
 
+ * Fixed potential use after free after SSL_free_buffers() is called.
+
+ The SSL_free_buffers function is used to free the internal OpenSSL
+ buffer used when processing an incoming record from the network.
+ The call is only expected to succeed if the buffer is not currently
+ in use. However, two scenarios have been identified where the buffer
+ is freed even when still in use.
+
+ The first scenario occurs where a record header has been received
+ from the network and processed by OpenSSL, but the full record body
+ has not yet arrived. In this case calling SSL_free_buffers will succeed
+ even though a record has only been partially processed and the buffer
+ is still in use.
+
+ The second scenario occurs where a full record containing application
+ data has been received and processed by OpenSSL but the application has
+ only read part of this data. Again a call to SSL_free_buffers will
+ succeed even though the buffer is still in use.
+
+ ([CVE-2024-4741])
+
+ *Matt Caswell*
+
  * Fixed an issue where checking excessively long DSA keys or parameters may
  be very slow.
 
@@ -19991,6 +20014,8 @@ ndif
 
 <!-- Links -->
 
+[CVE-2024-4741]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4741
+[CVE-2024-4603]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4603
 [CVE-2024-2511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-2511
 [CVE-2024-0727]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-0727
 [CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237

NEWS.md

@@ -21,6 +21,13 @@ OpenSSL 3.1
 
 ### Major changes between OpenSSL 3.1.5 and OpenSSL 3.1.6 [under development]
 
+ * Fixed potential use after free after SSL_free_buffers() is called
+ ([CVE-2024-4741])
+
+ * Fixed an issue where checking excessively long DSA keys or parameters may
+ be very slow
+ ([CVE-2024-4603])
+
  * Fixed unbounded memory growth with session handling in TLSv1.3
  ([CVE-2024-2511])
 
@@ -1491,6 +1498,8 @@ OpenSSL 0.9.x
 
 <!-- Links -->
 
+[CVE-2024-4741]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4741
+[CVE-2024-4603]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-4603
 [CVE-2024-2511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-2511
 [CVE-2024-0727]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-0727
 [CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237