From 7d8a8c20e1370e43b0cad17e47a460a6f8e81a34 Mon Sep 17 00:00:00 2001 From: Tomas Mraz Date: Wed, 15 Jan 2025 18:29:52 +0100 Subject: [PATCH] Add CHANGES.md and NEWS.md updates for CVE-2024-13176 Reviewed-by: Tim Hudson Reviewed-by: Neil Horman Reviewed-by: Paul Dale (Merged from https://github.com/openssl/openssl/pull/26429) (cherry picked from commit c3144e102571517df6c15ccc049fa3660ab3cb0a) --- CHANGES.md | 14 ++++++++++++++ NEWS.md | 4 ++++ 2 files changed, 18 insertions(+) diff --git a/CHANGES.md b/CHANGES.md index 44ed32d0fdf..aa64893d0d2 100644 --- a/CHANGES.md +++ b/CHANGES.md @@ -24,6 +24,19 @@ OpenSSL 3.1 ### Changes between 3.1.7 and 3.1.8 [xx XXX xxxx] + * Fixed timing side-channel in ECDSA signature computation. + + There is a timing signal of around 300 nanoseconds when the top word of + the inverted ECDSA nonce value is zero. This can happen with significant + probability only for some of the supported elliptic curves. In particular + the NIST P-521 curve is affected. To be able to measure this leak, the + attacker process must either be located in the same physical computer or + must have a very fast network connection with low latency. + + ([CVE-2024-13176]) + + *Tomáš Mráz* + * Fixed possible OOB memory access with invalid low-level GF(2^m) elliptic curve parameters. @@ -20064,6 +20077,7 @@ ndif +[CVE-2024-13176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-13176 [CVE-2024-9143]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-9143 [CVE-2024-6119]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-6119 [CVE-2024-5535]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-5535 diff --git a/NEWS.md b/NEWS.md index 39eee1f8bcd..c28b2b5c52f 100644 --- a/NEWS.md +++ b/NEWS.md @@ -26,6 +26,9 @@ release is Low. This release incorporates the following bug fixes and mitigations: + * Fixed timing side-channel in ECDSA signature computation. + ([CVE-2024-13176]) + * Fixed possible OOB memory access with invalid low-level GF(2^m) elliptic curve parameters. ([CVE-2024-9143]) @@ -1522,6 +1525,7 @@ OpenSSL 0.9.x +[CVE-2024-13176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-13176 [CVE-2024-9143]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-9143 [CVE-2024-6119]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-6119 [CVE-2024-5535]: https://www.openssl.org/news/vulnerabilities.html#CVE-2024-5535 -- 2.47.2