diff options
| author | Matt Caswell <matt@openssl.org> | 2024-03-05 16:01:20 +0000 |
|---|---|---|
| committer | Tomas Mraz <tomas@openssl.org> | 2024-04-08 12:08:19 +0200 |
| commit | b7acb6731a96b073d6150465bd090e2052a595c2 (patch) | |
| tree | 2227a5f34a09d5b338fde8d2f4fd2bf39a4ed69e | |
| parent | e9d7083e241670332e0443da0f0d4ffb52829f08 (diff) | |
Add a CHANGES.md/NEWS.md entry for the unbounded memory growth bug
Related to CVE-2024-2511
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24043)
| -rw-r--r-- | CHANGES.md | 19 | ||||
| -rw-r--r-- | NEWS.md | 9 |
2 files changed, 27 insertions, 1 deletions
diff --git a/CHANGES.md b/CHANGES.md index 027fd24ab5..2df0dbb5bb 100644 --- a/CHANGES.md +++ b/CHANGES.md @@ -27,6 +27,24 @@ OpenSSL 3.2 ### Changes between 3.2.1 and 3.2.2 [xx XXX xxxx] + * Fixed an issue where some non-default TLS server configurations can cause + unbounded memory growth when processing TLSv1.3 sessions. An attacker may + exploit certain server configurations to trigger unbounded memory growth that + would lead to a Denial of Service + + This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option + is being used (but not if early_data is also configured and the default + anti-replay protection is in use). In this case, under certain conditions, + the session cache can get into an incorrect state and it will fail to flush + properly as it fills. The session cache will continue to grow in an unbounded + manner. A malicious client could deliberately create the scenario for this + failure to force a Denial of Service. It may also happen by accident in + normal operation. + + ([CVE-2024-2511]) + + *Matt Caswell* + * New atexit configuration switch, which controls whether the OPENSSL_cleanup is registered when libcrypto is unloaded. This can be used on platforms where using atexit() from shared libraries causes crashes on exit. @@ -20405,6 +20423,7 @@ ndif <!-- Links --> +[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 [CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129 @@ -22,7 +22,13 @@ OpenSSL 3.2 ### Major changes between OpenSSL 3.2.1 and OpenSSL 3.2.2 [under development] - * none +OpenSSL 3.2.2 is a security patch release. The most severe CVE fixed in this +release is Low. + +This release incorporates the following bug fixes and mitigations: + + * Fixed unbounded memory growth with session handling in TLSv1.3 + ([CVE-2024-2511]) ### Major changes between OpenSSL 3.2.0 and OpenSSL 3.2.1 [30 Jan 2024] @@ -1587,6 +1593,7 @@ OpenSSL 0.9.x <!-- Links --> +[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 [CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129 |